Cervical Osteoarthritis: Difference between revisions

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For a overview of the components which form the cervical spine see http://www.physiopedia.com/Category:Cervical_Anatomy
For a overview of the components which form the cervical spine see http://www.physiopedia.com/Category:Cervical_Anatomy


There is a 'three joint complex' at every spinal level except C1–C2. This motion segment, is formed by the three articulations between adjacent vertebrae. These three articulations consist of one disc and two facet joints. The superior articular processes of the lower vertebra is positioned upwards and will articulate with the smaller inferior articular processes of the vertebra above it. The cervical facet articular surface area is about two-thirds the size of the area of the vertebral end plate. The facet joint exhibits features typical of synovial joints: articular cartilage covers the opposed surfaces of each of the facets, resting on a thickened layer of subchondral bone, and a synovial membrane bridges the margins of the cartilaginous portions of the joint. A superior and inferior capsular pouch, filled with fat, is formed at the poles of the joint, and a baggy fibrous joint capsule covers the joint like a hood. A fibro adipose menisci projects into the superior and inferior aspect of the joint and consists of a fold of synovium that encloses fat, collagen, and blood vessels. These menisci’s serve to increase the contact surface area when the facets are brought into contact with one another during motion, and slide during flexion of the joint to cover articular surfaces exposed by this movement.&nbsp;<ref name="alfred">Alfred C. Gellhorn et al., Osteoarthritis of the spine: the facet joints, Nat Rev Rheumatol. 2013 April ; 9(4): 216–224 </ref>  
There is a 'three joint complex' at every spinal level except C1–C2. This motion segment, is formed by the three articulations between adjacent vertebrae. These three articulations consist of one disc and two facet joints. The superior articular processes of the lower vertebra is positioned upwards and will articulate with the smaller inferior articular processes of the vertebra above it. The cervical facet articular surface area is about two-thirds the size of the area of the vertebral end plate. The facet joint exhibits features typical of synovial joints: articular cartilage covers the opposed surfaces of each of the facets, resting on a thickened layer of subchondral bone, and a synovial membrane bridges the margins of the cartilaginous portions of the joint. A superior and inferior capsular pouch, filled with fat, is formed at the poles of the joint, and a baggy fibrous joint capsule covers the joint like a hood. A fibro-adipose meniscus projects into the superior and inferior aspect of the joint and consists of a fold of synovium that encloses fat, collagen, and blood vessels. These menisci’s serve to increase the contact surface area when the facets are brought into contact with one another during motion, and slide during flexion of the joint to cover articular surfaces exposed by this movement.&nbsp;<ref name="alfred">Alfred C. Gellhorn et al., Osteoarthritis of the spine: the facet joints, Nat Rev Rheumatol. 2013 April ; 9(4): 216–224 </ref>  


These are the cervical spine components that are affected by osteoarthritis;  
The cervical spine components that are affected by osteoarthritis are;  


*&nbsp;Articular cartilage <ref name="musumeci" />&nbsp;<ref name="boucher">Boucher P. Postural control in people with osteoarthritis of the cervical spine. Journal of Manipulative and Physiological Therapeutics 2008; 31(3): 184-190 </ref> Initially fibrillation and shallow pitting occur, which affect the surface of the cartilage focally at first. At a more progressed stage, this can evolve to deeper fibrillation and fissuring, peeling off and pitting until the subchondral bone is affected.&nbsp;<ref name="gellhorn" />  
*Articular cartilage <ref name="musumeci" />&nbsp;<ref name="boucher">Boucher P. Postural control in people with osteoarthritis of the cervical spine. Journal of Manipulative and Physiological Therapeutics 2008; 31(3): 184-190 </ref> Initially fibrillation and shallow pitting occur, which affects the surface of the cartilage focally at first. At a more progressed stage, this can evolve to deeper fibrillation and fissuring, peeling off and pitting until the subchondral bone is affected.&nbsp;<ref name="gellhorn" />  
*&nbsp;Synovium<ref name="musumeci" />  
*Synovium<ref name="musumeci" />  
*&nbsp;Uncovertebral joints: Osteophytes are formed on the articular surfaces of the uncinate process. These osteophytes can impinge anatomical structures like the cervical spinal cord, spinal nerve root, radicular artery, vertebral artery and cervical sympathetic trunk.<ref name="hartman">Hartman J, Anatomy and Clinical Significance of the Uncinate Process and Uncovertebral Joint: A Comprehensive Review. Clinical Anatomy 2014; 27: 431-440 </ref>  
*Uncovertebral joints: Osteophytes are formed on the articular surfaces of the uncinate process. These osteophytes can impinge anatomical structures like the cervical spinal cord, spinal nerve root, radicular artery, vertebral artery and cervical sympathetic trunk.<ref name="hartman">Hartman J, Anatomy and Clinical Significance of the Uncinate Process and Uncovertebral Joint: A Comprehensive Review. Clinical Anatomy 2014; 27: 431-440 </ref>  
*&nbsp;Facet joints (Figure 2): which are inclined 45° from the horizontal. The joint surfaces are generally planar, but not flat.<ref name="gellhorn" />
*Facet joints (Figure 2): which are inclined 45° from the horizontal. The joint surfaces are generally planar, but not flat.<ref name="gellhorn" />  
 
*Intervertebral discs: between C0–C1 and C1-C2 there is no intervertebral discs. Major factors in the development and progression of osteoarthritis of the facet joints are joint alignment and load distribution.<ref name="gellhorn" />  
*&nbsp;Intervertebral discs: between C0–C1 and C1-C2 there is no intervertebral discs. Major factors in the development and progression of osteoarthritis of the facet joints are Joint alignment and load distribution.<ref name="gellhorn" />
*Cervical plexus: Osteophyte formation or progressive cartilage thinning may narrow the intervetebral foramin through which the cervical nerve roots emerge.<ref name="gellhorn" />&nbsp;<ref name="rand">Rand RW, Crandall PH. Surgical Treatment of Cervical Osteoarthritis. Calif Med 1959; 91(4): 185-188 </ref>  
 
*Intervertebral ligaments.<ref name="sutbeyaz" /><br><br>
*&nbsp;Cervical plexus: Osteophyte formation or progressive cartilage thinning may narrow the intervetebral foramin through which the cervical nerve roots emerge.<ref name="gellhorn" />&nbsp;<ref name="rand">Rand RW, Crandall PH. Surgical Treatment of Cervical Osteoarthritis. Calif Med 1959; 91(4): 185-188 </ref>  
*&nbsp;Intervertebral ligaments.<ref name="sutbeyaz" /><br><br>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;[[Image:Clinically Relevant Anatomy COA.jpg|500px]]<br>
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Cervical osteoarthritis may be generalised, sometimes involving the entire cervical region, but it is usually more localised between the 5th and 6th and the 6th and 7th cervical vertebrae.
Cervical osteoarthritis may be generalised, sometimes involving the entire cervical region, but it is usually more localised between the 5th and 6th and the 6th and 7th cervical vertebrae.


Anyone can develop cervical osteoarthritis, but it is rare in people younger than 40-50 years, the incidence increasing with age, <ref name="walker">Walker JA, Osteoarthritis: pathogenesis, clinical features and management. Nursing Standard 2009, Vol. 24, Nr. 1, 35-40</ref><ref name="boucher" /> women having a higher risk for cervical OA than men.<ref name="walker" /><ref name="michael" /> It is common in people above the age of 50 and especially if those people had had jobs that included remaining in a single static position for long periods, i.e. reading, writing and other desk based careers.  
Anyone can develop cervical osteoarthritis, but it is rare in people younger than 40-50 years, the incidence increasing with age, <ref name="walker">Walker JA, Osteoarthritis: pathogenesis, clinical features and management. Nursing Standard 2009, Vol. 24, Nr. 1, 35-40</ref><ref name="boucher" /> women having a higher risk for cervical OA than men.<ref name="walker" /><ref name="michael" /> It is common in people above the age of 50 and especially if those people who have had jobs that included remaining in a single static position for long periods, i.e. reading, writing and other desk based careers.  


Incidence of cervical OA can have many causes. i.e. mechanically over-stressing of a joint (e.g. working with tools which generate intense vibration), previous bone fractures or other injuries to the neck, overload at young age, postural asymmetry or asymmetric loading of a joint. Hartz et al suggest that there is a relationship between the severity of cervical osteoarthritis and a higher body weight of the patient.<ref name="hartz" />
Incidence of cervical OA can have many causes. i.e. mechanically over-stressing of a joint (e.g. working with tools which generate intense vibration), previous bone fractures or other injuries to the neck, overload at young age, postural asymmetry or asymmetric loading of a joint. ''Hartz et al'' suggest that there is a relationship between the severity of cervical osteoarthritis and a higher body weight of the patient.<ref name="hartz" />


Facet joint osteoarthritis (FJ OA) is intimately linked to the distinct but functionally related condition of degenerative disc disease, which affects structures in the anterior aspect of the vertebral column. FJ OA and [[Degenerative Disc Disease|degenerative disc disease]] are both thought to be common causes of back and neck pain, which in turn have an enormous impact on the health-care systems and economies.<ref name="alfred" />
Facet joint osteoarthritis (FJOA) is intimately linked to the distinct but functionally related condition of degenerative disc disease, which affects structures in the anterior aspect of the vertebral column. FJOA and [[Degenerative Disc Disease|degenerative disc disease]] are both thought to be common causes of back and neck pain, which in turn have an enormous impact on the health-care systems and economies.<ref name="alfred" />


== Characteristics/Clinical Presentation  ==
== Characteristics/Clinical Presentation  ==


OA is characterised by pain, stiffness, crepitus, limited range of movement and sometimes joint instability and mild synovitis <ref name="grob">Grob D. et al., Transarticular screw fixation for osteoarthritis of the atlanto-axial segment, Eur spine journal 2006 Mar; 15(3):283:91 </ref><ref name="arno">Arno Bisschop, Which factors prognosticate spinal instability following lumbar laminectomy?,Eur Spine J. 2012 Dec; 21(12): 2640–2648. </ref><ref name="singh">Singh J.A. et al., Chondroitin for osteoarthritis, 2015, Cochrane review. </ref>&nbsp;The pain is usually localised around the affected joint, but referred pain may occur. Pain associated with FJ OA can arise from nociceptors within and surrounding the joints, including nociceptors in the bone itself, as the facet joints and their capsules are well innervated <ref name="cibulka">Cibulka M.T. et al., Hip pain and mobility deficits - hip osteoarthritis: clinical practice guidelines linked to the international classification of functioning, disability and health from orthopaedic section of the American Physical Therapy Association, J Orthop Sports Phys Ther, 39 (2009), pp A1-25 </ref>. Pain can radiate to the occiput, the medial border of the scapula and the upper limbs <ref name="mqic">MQIC, Medical management of adults with osteoarthritis, Michigan Quality Improvement Consortium (2011) </ref>. Pain often becomes worse with joint movement and can be more severe at the end of the day. Morning stiffness can be a common feature, but usually dissipates quickly <ref name="peter">Peter W.F. et al., Physiotherapy in hip and knee osteoarthritis: development of practice guideline concerning initial assessment, treatment and evaluation, Acta Reumatol Port, 36 (2011), pp 268-281. </ref>. Restricted movement can occur due to pain, capsular thickening and the presence of osteophytes <ref name="peter" />.  
OA is characterised by pain, stiffness, crepitus, limited range of movement and sometimes joint instability and mild synovitis <ref name="grob">Grob D. et al., Transarticular screw fixation for osteoarthritis of the atlanto-axial segment, Eur spine journal 2006 Mar; 15(3):283:91 </ref><ref name="arno">Arno Bisschop, Which factors prognosticate spinal instability following lumbar laminectomy?,Eur Spine J. 2012 Dec; 21(12): 2640–2648. </ref><ref name="singh">Singh J.A. et al., Chondroitin for osteoarthritis, 2015, Cochrane review. </ref>&nbsp;The pain is usually localised around the affected joint, but referred pain may occur. Pain associated with FJOA can arise from nociceptors within and surrounding the joints, including nociceptors in the bone itself, as the facet joints and their capsules are well innervated <ref name="cibulka">Cibulka M.T. et al., Hip pain and mobility deficits - hip osteoarthritis: clinical practice guidelines linked to the international classification of functioning, disability and health from orthopaedic section of the American Physical Therapy Association, J Orthop Sports Phys Ther, 39 (2009), pp A1-25 </ref>. Pain can radiate to the occiput, the medial border of the scapula and the upper limbs <ref name="mqic">MQIC, Medical management of adults with osteoarthritis, Michigan Quality Improvement Consortium (2011) </ref>. Pain often becomes worse with joint movement and can be more severe at the end of the day. Morning stiffness can be a common feature, but usually dissipates quickly <ref name="peter">Peter W.F. et al., Physiotherapy in hip and knee osteoarthritis: development of practice guideline concerning initial assessment, treatment and evaluation, Acta Reumatol Port, 36 (2011), pp 268-281. </ref>. Restricted movement can occur due to pain, capsular thickening and the presence of osteophytes <ref name="peter" />.  


Osteophytes can form around the intervertebral joints and cause neurological symptoms due to compression of the spinal nerves ([[Cervical Radiculopathy]]) <ref name="loew">Loew L. et al, Ottawa panel evidence-based clinical practice guidelines for aerobic walking programs in the management of osteoarthritis, Arch Phys Med Rehabil, 93 (2012), pp 1269-1285.</ref>. Narrowing of the spinal canal ([[Cervical Stenosis]]) can also cause compression on the spinal cord and circulation problems from compression of vascular structures. Performing an MRI can be useful to confirm the presence of any  spinal cord compression ([[Cervical Myelopathy]]).  
Osteophytes can form around the intervertebral joints and cause neurological symptoms due to compression of the spinal nerves             (C[[Cervical Radiculopathy|ervical Radiculopathy]]) <ref name="loew">Loew L. et al, Ottawa panel evidence-based clinical practice guidelines for aerobic walking programs in the management of osteoarthritis, Arch Phys Med Rehabil, 93 (2012), pp 1269-1285.</ref>. Narrowing of the spinal canal ([[Cervical Stenosis]]) can also cause compression on the spinal cord and circulation problems from compression of vascular structures. Performing an MRI can be useful to confirm the presence of any  spinal cord compression ([[Cervical Myelopathy]]).  


Clinicians must be aware of potential [[Red Flags in Spinal Conditions|red flags]] which may indicate a more serious issue <ref name="manheimer">Manheimer E. et al., Acupuncture for osteoarthritis, 2010, Cochrane review. </ref>:  
Awareness of potential [[Red Flags in Spinal Conditions|red flags]] is essential, which may indicate a more serious issue: <ref name="manheimer">Manheimer E. et al., Acupuncture for osteoarthritis, 2010, Cochrane review. </ref>:  


*Malignancy, infection, or inflammation  
*Malignancy, infection, or inflammation  
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* Lower extremity sensory loss, reflex loss, motor weakness caused by nerve root impingement
* Lower extremity sensory loss, reflex loss, motor weakness caused by nerve root impingement
* Pseudoclaudication caused by [http://www.physio-pedia.com/Spinal_Stenosis spinal stenosis]
* Pseudoclaudication caused by [http://www.physio-pedia.com/Spinal_Stenosis spinal stenosis]
Radiology can also be used to determine OA, but some  people with radiological signs can remain asymptomatic<ref name="musumeci" /><ref>KNEW WW. Neck Pain Guidelines: Revision 2017. J Orthop Sports Phys Ther. 2017;47(7):511-2.</ref>. Kellgren and Lawrence developed a grading system for the radiological appearance of a joint with osteoarthritis<ref name="sutbeyaz" />.  If more than one joint in a group is assessed, then the most severe grade is reported:&nbsp;  
Radiology can also be used to determine OA, but some  individuals with radiological signs can remain asymptomatic<ref name="musumeci" /><ref>KNEW WW. Neck Pain Guidelines: Revision 2017. J Orthop Sports Phys Ther. 2017;47(7):511-2.</ref>. ''Kellgren and Lawrence'' developed a grading system for the radiological appearance of a joint with osteoarthritis<ref name="sutbeyaz" />.  If more than one joint in a group is assessed, then the most severe grade is reported:&nbsp;  


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== Outcome Measures  ==
== Outcome Measures  ==


Functional status and disability measure (evaluation of the activities of daily living) can be assessed by the [[Neck Pain and Disability Scale]](NPAD) and the [[Neck Disability Index|Neck disability index]] (NDI).<ref name="binder">Binder A, Cervical spondylosis and neck pain. BMJ. 2007 Mar 10;334(7592):527-531 </ref>
Functional status and disability measure (evaluation of the activities of daily living) can be assessed by the [[Neck Pain and Disability Scale]] (NPAD) and the [[Neck Disability Index|Neck disability index]] (NDI).<ref name="binder">Binder A, Cervical spondylosis and neck pain. BMJ. 2007 Mar 10;334(7592):527-531 </ref>


#The Neck pain and disability scale (NPAD) is a composite index including 20 items, which measure the intensity of neck pain, its interference with vocational, recreational, social, and functional aspects of living and also the presence and extent of associated emotional factors.  
*The Neck pain and disability scale (NPAD) is a composite index including 20 items, which measure the intensity of neck pain, its interference with vocational, recreational, social, and functional aspects of living and also the presence and extent of associated emotional factors.  
#The Neck disability index (NDI) is a patient completed and condition specific functional status questionnaire. This questionnaire consists of 10 items, including pain, personal care, lifting, reading, headaches, concentration, work, driving, sleeping and recreation. This questionnaire has been designed to give information as to how neck pain has affected the patient’s ability to manage in daily life.
*The Neck disability index (NDI) is a patient completed and condition specific functional status questionnaire. This questionnaire consists of 10 items, including pain, personal care, lifting, reading, headaches, concentration, work, driving, sleeping and recreation. This questionnaire has been designed to give information as to how neck pain has affected the patient’s ability to manage in daily life.


The NPAD and NDI are both seen as valid measures of self-reported neck pain related disabilities.<ref name="binder" />&nbsp; &nbsp;
The NPAD and NDI are both seen as valid measures of self-reported neck pain related disabilities.<ref name="binder" />&nbsp; &nbsp;
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The following medical management strategies are only indicating when all other conservative treatment has failed.
The following medical management strategies are only indicating when all other conservative treatment has failed.


=== Intra-articular Injections ===
==== Intra-articular Injections ====
Intra-articular corticosteroids are recommended for hip and knee osteoarthritis. The effects of corticosteroids on cervical osteoarthritis need to be researched<ref name="cibulka" /><ref name="mqic" /><ref name="peter" /><ref name="loew" />.
Intra-articular corticosteroids are recommended for hip and knee osteoarthritis. The effects of corticosteroids on cervical osteoarthritis need to be researched<ref name="cibulka" /><ref name="mqic" /><ref name="peter" /><ref name="loew" />.


=== Surgical treatment  ===
==== Surgical treatment  ====


There are indications that excision and fusion of the anterior cervical intervertebral disc (Cloward operation) together with the removal of associated arthritic bone spurs pressing on the nerves and spinal cord can give relief of pain and muscle weakness in patients who have cervical osteoarthritis with neurologic pain<ref name="robert">Robert W. Rand and Paul H. Crandall, Surgical treatment of cervical osteoarthritis, Calif Med. 1959 Oct; 91(4): 185–188.</ref>.
There are indications that excision and fusion of the anterior cervical intervertebral disc (Cloward operation) together with the removal of associated arthritic bone spurs pressing on the nerves and spinal cord can give relief of pain and muscle weakness in patients who have cervical osteoarthritis with neurologic pain<ref name="robert">Robert W. Rand and Paul H. Crandall, Surgical treatment of cervical osteoarthritis, Calif Med. 1959 Oct; 91(4): 185–188.</ref>.
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Patients with atlantoaxial (C1-C2) facet joint osteoarthritis have a positive reaction on pain after the fusion of these two facet joints with transarticular screw fixation. This treatment has a relative low rate of serious complications<ref name="grob" />.<u></u>
Patients with atlantoaxial (C1-C2) facet joint osteoarthritis have a positive reaction on pain after the fusion of these two facet joints with transarticular screw fixation. This treatment has a relative low rate of serious complications<ref name="grob" />.<u></u>


Laminoplasty is used to decompress the cervical spinal cord. A risk of this surgical treatment is a reduced strength and shear stiffness (SS) of motion segments. As a result of this, the patient can suffer from instability. Also a great part of the patients had neck pain after the surgical the method of Kuang-Ting Yeh choses laminoplasty instead of laminectomy as a decompression method in posterior instrumented fusion for degenerative cervical kyphosis with stenosis<ref name="arno" />.  
Laminoplasty is used to decompress the cervical spinal cord. A risk of this surgical treatment, however, is reduced strength and shear stiffness (SS) of motion segments and the patient can suffer from instability as a result. Numerous patients also had neck pain following surgery. <ref name="arno" />.  


=== Pharmacology ===
=== Pharmacology ===
In short-terms there are some benefits from chondroitin (alone or in combination with glucosamine). Benefits are small to moderate but clinically meaningful<ref name="singh" />.
In the short-terms some benefit may be gained from using chondroitin (alone or in combination with glucosamine). Benefits have been shown to be small to moderate, but clinically meaningful<ref name="singh" />.


== Physical Therapy Management  ==
== Physical Therapy Management  ==
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=== Advice and education  ===
=== Advice and education  ===
Providing information related to the disorder, stress management and postural advice in daily activities, work and hobbies should also be part of any treatment plan<ref name="binder" /> Clinicians will see a benefit of providing encouragement and motivation.<ref name="marley">Marley J; et al. A systematic review of interventions aimed at increasing physical activity in adults with chronic musculoskeletal pain, Syst Rev. 2014 Sep 19; 3:106)</ref>
Providing information related to the disorder, stress management and postural advice in daily activities, work and hobbies should also be part of any treatment plan<ref name="binder" /> and providing encouragement and motivation where necessary.<ref name="marley">Marley J; et al. A systematic review of interventions aimed at increasing physical activity in adults with chronic musculoskeletal pain, Syst Rev. 2014 Sep 19; 3:106)</ref>


Advice and education regarding good neck posture is a key part of treatment as as the condition progresses, neck posture can negatively alter. Side lying is the preferred position when sleeping as lying supine. A single pillow only under the head for head support is suggested, although a butterfly pillow offers the best support, as it is flattened in the middle and the elevated sides support the head. <ref name="kieran">Kieran Michael Hirpara, Joseph S. Butler, Roisin T. Dolan, John M. O'Byrne, and Ashley R. Poynton. Nonoperative Modalities to Treat Symptomatic Cervical Spondylosis. Adv Orthop. 2012; 2012: 294857. </ref>
Advice and education regarding good neck posture is a key part of treatment as the condition progresses, as neck posture can negatively alter. Sleeping advice is that side lying is the preferred position and  a single pillow only under the head is recommended, although a butterfly pillow offers the best support, as it is flattened in the middle and the elevated sides support the head. <ref name="kieran">Kieran Michael Hirpara, Joseph S. Butler, Roisin T. Dolan, John M. O'Byrne, and Ashley R. Poynton. Nonoperative Modalities to Treat Symptomatic Cervical Spondylosis. Adv Orthop. 2012; 2012: 294857. </ref>


=== [[Manual Therapy and Exercise for Neck Pain: Clinical Treatment Tool-kit|Exercise Therapy]]  ===
=== [[Manual Therapy and Exercise for Neck Pain: Clinical Treatment Tool-kit|Exercise Therapy]]  ===
Treatment for cervical osteoarthritis is usually conservative and it can be treated using a variety of therapy possibilities with exercise therapy being a key element. Exercise includes mobilisation exercises, strengthening local muscles around the affected joint and improving overall aerobic fitness<ref name="walker" /><ref name="binder" /><ref name="sutbeyaz" /> There is considerable evidence that suggests that physical activity can help in in the management of chronic pain and should play a key role in overall treatment. This will improve the disability over time and has other multiple health benefits.  
Treatment for cervical osteoarthritis is usually conservative and it can be treated using a variety of therapy possibilities with exercise therapy being a key element. Exercise includes mobilisation exercises, strengthening local muscles around the affected joint and improving overall aerobic fitness<ref name="walker" /><ref name="binder" /><ref name="sutbeyaz" /> There is considerable evidence that suggests physical activity can help in in the management of chronic pain and should play a key role in the overall treatment plan. This will improve the disability over time and has other multiple health benefits.  


==== Proprioceptive exercises  ====
==== Proprioceptive exercises  ====


Proprioceptive exercises can also be used in the therapy of cervical osteoarthritis. Some studies have shown a positive result in using proprioceptive exercises.<ref name="michael a">Michael A McCaskey et al.; Effects of proprioceptive exercises on pain and function in chronic neck- and low back pain rehabilitation: a systematic literature review; BMC Musculoskeletal Disorders BMC series – open, inclusive and trusted 201415:382 </ref><ref name="ar">A.R. Gross et al.; Exercises for mechanical neck disorders: A Cochrane review update; Manual Therapy 24 (2016) 25-45 </ref>
Studies have shown positive results with proprioceptive exercises.<ref name="michael a">Michael A McCaskey et al.; Effects of proprioceptive exercises on pain and function in chronic neck- and low back pain rehabilitation: a systematic literature review; BMC Musculoskeletal Disorders BMC series – open, inclusive and trusted 201415:382 </ref><ref name="ar">A.R. Gross et al.; Exercises for mechanical neck disorders: A Cochrane review update; Manual Therapy 24 (2016) 25-45 </ref>
==== Stabilisation exercises  ====
==== Stabilisation exercises  ====


Exercises with for example © Chattanooga stabilizer pressure biofeedback can help to train the deep cervical flexor muscles. Stabilization exercises have been proven to be effective for the reduction of pain in patients with cervical pain due to cervical osteoarthritis.<ref name="dusunceli">Dusunceli Yesim et al.; Efficacy of neck stabilization exercises for neck pain: A randomized controlled study; Journal of Rehabilitation Medicine, Volume 41, Number 8 ( level of evidence: 1B)</ref>
Exercises with, for example, a Chattanooga stabiliser pressure biofeedback can help to train the deep cervical flexor muscles. Such exercises have been proven to be effective for the reduction of cervical pain in patients suffering from cervical osteoarthritis.<ref name="dusunceli">Dusunceli Yesim et al.; Efficacy of neck stabilization exercises for neck pain: A randomized controlled study; Journal of Rehabilitation Medicine, Volume 41, Number 8 ( level of evidence: 1B)</ref>


==== Stretching exercises ====
==== Stretching exercises ====
A regular stretching exercise program performed for four weeks can decrease neck and shoulder pain and improve neck function and quality of life of people who suffer of cervical osteoarthritis.<ref name="tunwattanapong">Tunwattanapong P et al.; The effectiveness of a neck and shoulder stretching exercise program among office workers with neck pain: a randomized controlled trial. Clin Rehabil. 2016 Jan;30(1):64-72. </ref>
A regular stretching exercise program can help to decrease neck and shoulder pain and improve neck function and quality of life of individuals.<ref name="tunwattanapong">Tunwattanapong P et al.; The effectiveness of a neck and shoulder stretching exercise program among office workers with neck pain: a randomized controlled trial. Clin Rehabil. 2016 Jan;30(1):64-72. </ref>


=== [[Manual Therapy and Exercise for Neck Pain: Clinical Treatment Tool-kit|Manual therapy]]  ===
=== [[Manual Therapy and Exercise for Neck Pain: Clinical Treatment Tool-kit|Manual therapy]]  ===


Manual therapy, such as massage, mobilisation, and manipulation, may provide further relief for patients with cervical osteoarthritis. Mobilisation is characterised by the application of gentle pressure within or at the limits of normal motion to improve ROM.  
Manual therapy, such as massage, mobilisation, and manipulation may provide further relief for patients with cervical osteoarthritis. Mobilisation is characterised by the application of gentle pressure within or at the limits of normal motion to improve ROM.  


Manipulation may be considered, but there are numerous contraindications, such as myelopathy, severe degenerative changes, fracture or dislocation, infection, malignancy, ligamentous instability and vertebrobasilar insufficiency which have to be taken into consideration.&nbsp;<ref name="almeida">Almeida GP, Carneiro KK, Marques AP. Manual therapy and therapeutic exercise in patient with symptomatic cervical spondylotic myelopathy: a comprehensive review. J Bodyw Mov Ther. 2013 Oct;17(4):504-9. </ref>
Manipulation may be considered, but there are numerous contraindications, such as myelopathy, severe degenerative changes, fracture or dislocation, infection, malignancy, ligamentous instability and vertebrobasilar insufficiency which have to be taken into consideration.&nbsp;<ref name="almeida">Almeida GP, Carneiro KK, Marques AP. Manual therapy and therapeutic exercise in patient with symptomatic cervical spondylotic myelopathy: a comprehensive review. J Bodyw Mov Ther. 2013 Oct;17(4):504-9. </ref>
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=== Hydrotherapy  ===
=== Hydrotherapy  ===


Underwater traction of the cervical spine during weight bath therapy demonstrated positive outcomes; it mitigated the pain, increased the range of motion and improved quality of life. The patient hangs in a steel construction with their head supported by a collar which creates the traction and their body weight supported by the water.<ref name="mihaly">Mihaly Olah, Levente Molnar, Jozsef Dobai ;The effects of weightbath traction hydrotherapy as e component of complex physical therapy in disorders of the cervical and lumbar spine: a controlled pilot study with follow up;  12 January 2008 </ref><ref name="marta">Márta Kurutz and Tamás Bender ; Weightbath hydrotraction treatment: application, biomechanics, and clinical effects ; Journal of multidisciplinary Healthcare ; April 2010 </ref>
Underwater traction of the cervical spine during weight bath therapy demonstrated positive outcomes. It mitigated the pain, increased the range of motion and improved quality of life. The patient hangs in a steel construction with their head supported by a collar which creates the traction with their body weight supported by the water.<ref name="mihaly">Mihaly Olah, Levente Molnar, Jozsef Dobai ;The effects of weightbath traction hydrotherapy as e component of complex physical therapy in disorders of the cervical and lumbar spine: a controlled pilot study with follow up;  12 January 2008 </ref><ref name="marta">Márta Kurutz and Tamás Bender ; Weightbath hydrotraction treatment: application, biomechanics, and clinical effects ; Journal of multidisciplinary Healthcare ; April 2010 </ref>


=== Acupuncture  ===
=== Acupuncture  ===
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==== Ultrasound  ====
==== Ultrasound  ====


Ultrasound may be beneficial, but there is only low quality evidence for its effectiveness on osteoarthritis. Most studies however have investigated its effectiveness on hip and knee osteoarthritis. The magnitude of the effects on pain relief and function is still unclear and any positive results may wholly be due to placebo.<ref name="rutjes">Rutjes A. W. S. et al., Therapeutic ultrasound for osteoarthritis, 2010, Cochrane review. </ref>
Ultrasound may be beneficial, but there is only low quality evidence for its effectiveness on osteoarthritis. Most studies, however, have investigated its effectiveness on hip and knee osteoarthritis. The magnitude of the effects on pain relief and function is still unclear and any positive results may wholly be due to placebo.<ref name="rutjes">Rutjes A. W. S. et al., Therapeutic ultrasound for osteoarthritis, 2010, Cochrane review. </ref>


==== TENS  ====
==== TENS  ====

Revision as of 19:45, 27 September 2017

Definition/Description[edit | edit source]

Osteoarthritis of the cervical spine may be defined as a degenerative disorder of C1-C7, complicated by inflammatory reactions. It is a very complex disease with multiple causes[1] which affects the intervertebral discs, vertebral bodies, intervertebral ligaments,[2] the hyaline cartilage, the underlying bone, joint capsule, zygophyseal joints and/or can lead to the formation of osteophytes [3] [4] or subchondral cysts and/or can cause hypertrophy of the articular process.[5] Although cervical osteoarthritis is often referred to as cervical spondylosis [4], it is not clear whether these two concepts may be considered synonyms.

                                            Definition COA.jpg

Clinically Relevant Anatomy[edit | edit source]

For a overview of the components which form the cervical spine see http://www.physiopedia.com/Category:Cervical_Anatomy

There is a 'three joint complex' at every spinal level except C1–C2. This motion segment, is formed by the three articulations between adjacent vertebrae. These three articulations consist of one disc and two facet joints. The superior articular processes of the lower vertebra is positioned upwards and will articulate with the smaller inferior articular processes of the vertebra above it. The cervical facet articular surface area is about two-thirds the size of the area of the vertebral end plate. The facet joint exhibits features typical of synovial joints: articular cartilage covers the opposed surfaces of each of the facets, resting on a thickened layer of subchondral bone, and a synovial membrane bridges the margins of the cartilaginous portions of the joint. A superior and inferior capsular pouch, filled with fat, is formed at the poles of the joint, and a baggy fibrous joint capsule covers the joint like a hood. A fibro-adipose meniscus projects into the superior and inferior aspect of the joint and consists of a fold of synovium that encloses fat, collagen, and blood vessels. These menisci’s serve to increase the contact surface area when the facets are brought into contact with one another during motion, and slide during flexion of the joint to cover articular surfaces exposed by this movement. [6]

The cervical spine components that are affected by osteoarthritis are;

  • Articular cartilage [1] [7] Initially fibrillation and shallow pitting occur, which affects the surface of the cartilage focally at first. At a more progressed stage, this can evolve to deeper fibrillation and fissuring, peeling off and pitting until the subchondral bone is affected. [5]
  • Synovium[1]
  • Uncovertebral joints: Osteophytes are formed on the articular surfaces of the uncinate process. These osteophytes can impinge anatomical structures like the cervical spinal cord, spinal nerve root, radicular artery, vertebral artery and cervical sympathetic trunk.[8]
  • Facet joints (Figure 2): which are inclined 45° from the horizontal. The joint surfaces are generally planar, but not flat.[5]
  • Intervertebral discs: between C0–C1 and C1-C2 there is no intervertebral discs. Major factors in the development and progression of osteoarthritis of the facet joints are joint alignment and load distribution.[5]
  • Cervical plexus: Osteophyte formation or progressive cartilage thinning may narrow the intervetebral foramin through which the cervical nerve roots emerge.[5] [9]
  • Intervertebral ligaments.[2]

                                        Clinically Relevant Anatomy COA.jpg

Epidemiology/Etiology[edit | edit source]

Cervical osteoarthritis may be generalised, sometimes involving the entire cervical region, but it is usually more localised between the 5th and 6th and the 6th and 7th cervical vertebrae.

Anyone can develop cervical osteoarthritis, but it is rare in people younger than 40-50 years, the incidence increasing with age, [10][7] women having a higher risk for cervical OA than men.[10][3] It is common in people above the age of 50 and especially if those people who have had jobs that included remaining in a single static position for long periods, i.e. reading, writing and other desk based careers.

Incidence of cervical OA can have many causes. i.e. mechanically over-stressing of a joint (e.g. working with tools which generate intense vibration), previous bone fractures or other injuries to the neck, overload at young age, postural asymmetry or asymmetric loading of a joint. Hartz et al suggest that there is a relationship between the severity of cervical osteoarthritis and a higher body weight of the patient.[4]

Facet joint osteoarthritis (FJOA) is intimately linked to the distinct but functionally related condition of degenerative disc disease, which affects structures in the anterior aspect of the vertebral column. FJOA and degenerative disc disease are both thought to be common causes of back and neck pain, which in turn have an enormous impact on the health-care systems and economies.[6]

Characteristics/Clinical Presentation[edit | edit source]

OA is characterised by pain, stiffness, crepitus, limited range of movement and sometimes joint instability and mild synovitis [11][12][13] The pain is usually localised around the affected joint, but referred pain may occur. Pain associated with FJOA can arise from nociceptors within and surrounding the joints, including nociceptors in the bone itself, as the facet joints and their capsules are well innervated [14]. Pain can radiate to the occiput, the medial border of the scapula and the upper limbs [15]. Pain often becomes worse with joint movement and can be more severe at the end of the day. Morning stiffness can be a common feature, but usually dissipates quickly [16]. Restricted movement can occur due to pain, capsular thickening and the presence of osteophytes [16].

Osteophytes can form around the intervertebral joints and cause neurological symptoms due to compression of the spinal nerves (Cervical Radiculopathy) [17]. Narrowing of the spinal canal (Cervical Stenosis) can also cause compression on the spinal cord and circulation problems from compression of vascular structures. Performing an MRI can be useful to confirm the presence of any spinal cord compression (Cervical Myelopathy).

Awareness of potential red flags is essential, which may indicate a more serious issue: [18]:

  • Malignancy, infection, or inflammation
  • Fever, night sweats
  • Unexpected weight loss
  • History of inflammatory arthritis, infection, tuberculosis, HIV infection, drug dependency, or immunosuppression
  • Excruciating pain
  • Intractable night pain
  • Cervical lymphadenopathy
  • Exquisite tenderness over a vertebral body
  • Gait disturbance or clumsy hands, or both
  • Objective neurological deficit
  • Sudden onset in a young patient suggests disc prolapse
  • History of severe osteoporosis
  • Drop attacks, especially when moving the neck, suggest vascular disease
  • Intractable or increasing pain   

Prolonged peripheral inflammation in and around facet joints can lead to central sensitisation, neuronal plasticity, and the development of chronic spinal pain [19].

Differential Diagnosis[edit | edit source]

Diagnostic Procedures[edit | edit source]

A diagnosis is usually based on the clinical presentation[20][1]

  • Pain on range of motion
  • Limitation of range of motion
  • Lower extremity sensory loss, reflex loss, motor weakness caused by nerve root impingement
  • Pseudoclaudication caused by spinal stenosis

Radiology can also be used to determine OA, but some individuals with radiological signs can remain asymptomatic[1][21]. Kellgren and Lawrence developed a grading system for the radiological appearance of a joint with osteoarthritis[2]. If more than one joint in a group is assessed, then the most severe grade is reported: 

Radiological appearance of osteoarthritis Grade Parameters
normal (no signs of osteoarthritis) 0
doubtful change (uncertain) 1 osteophytes at the joint margins and periarticular ossicles
definite, minimal to mild 2 narrowing of the joint space
definite, moderate 3 cystic areas with sclerotic walls in subchondral bone
definite, severe 4 deformity of bone (altered shape)

Outcome Measures[edit | edit source]

Functional status and disability measure (evaluation of the activities of daily living) can be assessed by the Neck Pain and Disability Scale (NPAD) and the Neck disability index (NDI).[22]

  • The Neck pain and disability scale (NPAD) is a composite index including 20 items, which measure the intensity of neck pain, its interference with vocational, recreational, social, and functional aspects of living and also the presence and extent of associated emotional factors.
  • The Neck disability index (NDI) is a patient completed and condition specific functional status questionnaire. This questionnaire consists of 10 items, including pain, personal care, lifting, reading, headaches, concentration, work, driving, sleeping and recreation. This questionnaire has been designed to give information as to how neck pain has affected the patient’s ability to manage in daily life.

The NPAD and NDI are both seen as valid measures of self-reported neck pain related disabilities.[22]   

Examination[edit | edit source]

As osteoarthritis is primarily a clinical diagnosis, patient history and the physical examination is usually sufficient to make a confident diagnosis. Joint pain and limited range of motion are usual symptoms in patients with cervical osteoarthritis. The pain tends to worsen with activity, especially following a period of rest (gelling phenomenon). [23]

Physical examination follows a normal cervical examination and includes:[5]

  • Inspection: posture, edema, erythema, evidence of trauma, muscle atrophy, skin abnormalities and joint deformity.
  • Palpation of facet joints, examining of anatomic abnormality, temperature and tenderness. 
  • Range of motion of the cervical region and shoulder region.
  • Stress of the facet joints: pain increases with hyperextension, extension-rotation of the neck. Pain decreases while doing flexion of the neck. 
  • Neurological evaluation: motor and sensory evaluation of sensation, reflexes and muscle strength. Other special tests may be indicated: L’hermitte sign, Hoffman's test, Babinski. 
  • Muscle testing: searching myofascial triggerpoints in the sternocleidomastoid, cervical paraspinal muscles, levator scapulae, the upper trapezius and suboccipital musculature. 

Medical Management[edit | edit source]

The following medical management strategies are only indicating when all other conservative treatment has failed.

Intra-articular Injections[edit | edit source]

Intra-articular corticosteroids are recommended for hip and knee osteoarthritis. The effects of corticosteroids on cervical osteoarthritis need to be researched[14][15][16][17].

Surgical treatment[edit | edit source]

There are indications that excision and fusion of the anterior cervical intervertebral disc (Cloward operation) together with the removal of associated arthritic bone spurs pressing on the nerves and spinal cord can give relief of pain and muscle weakness in patients who have cervical osteoarthritis with neurologic pain[24].

Patients with atlantoaxial (C1-C2) facet joint osteoarthritis have a positive reaction on pain after the fusion of these two facet joints with transarticular screw fixation. This treatment has a relative low rate of serious complications[11].

Laminoplasty is used to decompress the cervical spinal cord. A risk of this surgical treatment, however, is reduced strength and shear stiffness (SS) of motion segments and the patient can suffer from instability as a result. Numerous patients also had neck pain following surgery. [12].

Pharmacology[edit | edit source]

In the short-terms some benefit may be gained from using chondroitin (alone or in combination with glucosamine). Benefits have been shown to be small to moderate, but clinically meaningful[13].

Physical Therapy Management[edit | edit source]

The main goals of management for cervical OA are: [10]

  • reducing pain and stiffness
  • improving joint mobility
  • inhibiting further progression of joint damage

Advice and education[edit | edit source]

Providing information related to the disorder, stress management and postural advice in daily activities, work and hobbies should also be part of any treatment plan[22] and providing encouragement and motivation where necessary.[25]

Advice and education regarding good neck posture is a key part of treatment as the condition progresses, as neck posture can negatively alter. Sleeping advice is that side lying is the preferred position and a single pillow only under the head is recommended, although a butterfly pillow offers the best support, as it is flattened in the middle and the elevated sides support the head. [26]

Exercise Therapy[edit | edit source]

Treatment for cervical osteoarthritis is usually conservative and it can be treated using a variety of therapy possibilities with exercise therapy being a key element. Exercise includes mobilisation exercises, strengthening local muscles around the affected joint and improving overall aerobic fitness[10][22][2] There is considerable evidence that suggests physical activity can help in in the management of chronic pain and should play a key role in the overall treatment plan. This will improve the disability over time and has other multiple health benefits.

Proprioceptive exercises[edit | edit source]

Studies have shown positive results with proprioceptive exercises.[27][28]

Stabilisation exercises[edit | edit source]

Exercises with, for example, a Chattanooga stabiliser pressure biofeedback can help to train the deep cervical flexor muscles. Such exercises have been proven to be effective for the reduction of cervical pain in patients suffering from cervical osteoarthritis.[29]

Stretching exercises[edit | edit source]

A regular stretching exercise program can help to decrease neck and shoulder pain and improve neck function and quality of life of individuals.[30]

Manual therapy[edit | edit source]

Manual therapy, such as massage, mobilisation, and manipulation may provide further relief for patients with cervical osteoarthritis. Mobilisation is characterised by the application of gentle pressure within or at the limits of normal motion to improve ROM.

Manipulation may be considered, but there are numerous contraindications, such as myelopathy, severe degenerative changes, fracture or dislocation, infection, malignancy, ligamentous instability and vertebrobasilar insufficiency which have to be taken into consideration. [31]

Heat and cold modalities [edit | edit source]

Even though there is a lack of evidence for the application of local heat or cold, it is often used by patients with OA to decrease pain.

Hydrotherapy[edit | edit source]

Underwater traction of the cervical spine during weight bath therapy demonstrated positive outcomes. It mitigated the pain, increased the range of motion and improved quality of life. The patient hangs in a steel construction with their head supported by a collar which creates the traction with their body weight supported by the water.[32][33]

Acupuncture[edit | edit source]

  • Studies have shown minimal significant benefits of acupuncture for osteoarthritis which do not meet the defined thresholds for clinical relevance. Most of the benefits are suggested to be placebo.[18] 
  • Nakijima et al suggested that the depth of the needle has significant relevance for long-term benefit. The results showed that a deeper needle insertion (15-20mm) was more effective than a superficial one (5mm) in patients with neck and shoulder pain.[34]

Electrotherapy[edit | edit source]

Ultrasound[edit | edit source]

Ultrasound may be beneficial, but there is only low quality evidence for its effectiveness on osteoarthritis. Most studies, however, have investigated its effectiveness on hip and knee osteoarthritis. The magnitude of the effects on pain relief and function is still unclear and any positive results may wholly be due to placebo.[35]

TENS[edit | edit source]

TENS can also provide symptomatic relief.[10][22][2]

Pulsed electric stimulation[edit | edit source]

It has been suggested that this treatment causes the stimulation of cartilage growth at the cellular level, yet there is a need for further large scale studies of pulsed electric stimulation to confirm these finding.[19] It is thought that magnetic therapy represents an alternative therapy for patients suffering from cervical OA. Electromagnetic fields can be applied to treat cervical OA and are thought to have a pain-relief effect, but further studies are needed.[2][36][19]

Low power Laser Therapy[edit | edit source]

Several studies have shown the effectiveness of low power laser therapy. They demonstrated a reduction in pain and an improvement in neck function. Chow et al compared low laser therapy with a placebo treatment. The treatment group showed significant improvement on several parameters: pain, paravertebral muscle spasm, lordosis angle and range of motion of the neck[37][38][39]

References[edit | edit source]

  1. 1.0 1.1 1.2 1.3 1.4 Musumeci G, Aiello FC, Szychlinska MA, Di Rosa M, Castrogiovanni P, Mobasheri A. Osteoarthritis in the XXIst Century: Risk Factors and Behaviours that Influence Disease Onset and Progression. Int J Mol Sci 2015; 16(3): 6093-6112
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Sutbeyaz ST, Sezer N, Koseoglu BF. The effect of pulsed electromagnetic fields in the treatment of cervical osteoarthritis: a randomized, double-blind, sham-controlled trial. Rhematol Int 2006; 26: 320-324
  3. 3.0 3.1 Michael J. Lee, K.Daniel Riew. The prevalence cervical facet arthrosis: an osseous study in cadaveric population. The spine Journal 9(2009) 711-714
  4. 4.0 4.1 4.2 Hartz A J, Fisher M E, Bril G, et al. The association of obesity with joint pain and osteoarthritis in the HANES data. J Chronic Dis 1986;39:311-319
  5. 5.0 5.1 5.2 5.3 5.4 5.5 Gellhorn AC, Katz JN, Suri P. Osteoarthritis of the spine: the facet joints. Nat Rev Rheumatol 2013; 9(4): 216-224
  6. 6.0 6.1 Alfred C. Gellhorn et al., Osteoarthritis of the spine: the facet joints, Nat Rev Rheumatol. 2013 April ; 9(4): 216–224
  7. 7.0 7.1 Boucher P. Postural control in people with osteoarthritis of the cervical spine. Journal of Manipulative and Physiological Therapeutics 2008; 31(3): 184-190
  8. Hartman J, Anatomy and Clinical Significance of the Uncinate Process and Uncovertebral Joint: A Comprehensive Review. Clinical Anatomy 2014; 27: 431-440
  9. Rand RW, Crandall PH. Surgical Treatment of Cervical Osteoarthritis. Calif Med 1959; 91(4): 185-188
  10. 10.0 10.1 10.2 10.3 10.4 Walker JA, Osteoarthritis: pathogenesis, clinical features and management. Nursing Standard 2009, Vol. 24, Nr. 1, 35-40
  11. 11.0 11.1 Grob D. et al., Transarticular screw fixation for osteoarthritis of the atlanto-axial segment, Eur spine journal 2006 Mar; 15(3):283:91
  12. 12.0 12.1 Arno Bisschop, Which factors prognosticate spinal instability following lumbar laminectomy?,Eur Spine J. 2012 Dec; 21(12): 2640–2648.
  13. 13.0 13.1 Singh J.A. et al., Chondroitin for osteoarthritis, 2015, Cochrane review.
  14. 14.0 14.1 Cibulka M.T. et al., Hip pain and mobility deficits - hip osteoarthritis: clinical practice guidelines linked to the international classification of functioning, disability and health from orthopaedic section of the American Physical Therapy Association, J Orthop Sports Phys Ther, 39 (2009), pp A1-25
  15. 15.0 15.1 MQIC, Medical management of adults with osteoarthritis, Michigan Quality Improvement Consortium (2011)
  16. 16.0 16.1 16.2 Peter W.F. et al., Physiotherapy in hip and knee osteoarthritis: development of practice guideline concerning initial assessment, treatment and evaluation, Acta Reumatol Port, 36 (2011), pp 268-281.
  17. 17.0 17.1 Loew L. et al, Ottawa panel evidence-based clinical practice guidelines for aerobic walking programs in the management of osteoarthritis, Arch Phys Med Rehabil, 93 (2012), pp 1269-1285.
  18. 18.0 18.1 Manheimer E. et al., Acupuncture for osteoarthritis, 2010, Cochrane review.
  19. 19.0 19.1 19.2 Hulme J. et al., Electromagnetic fields for the treatment of osteoarthritis., Hulme J1, Robinson V, Cochrane Database Syst Rev. 2002;(1)
  20. Mike Murray et al. Specific exercise training for reducing neck and shoulder pain among military helicopter pilots and crew members: a randomized controlled trial protocol, BMC Musculoskelet Disord. 2015; 16: 198.
  21. KNEW WW. Neck Pain Guidelines: Revision 2017. J Orthop Sports Phys Ther. 2017;47(7):511-2.
  22. 22.0 22.1 22.2 22.3 22.4 Binder A, Cervical spondylosis and neck pain. BMJ. 2007 Mar 10;334(7592):527-531
  23. Sinusas K., Osteoarthritis: diagnosis and treatment, Am Fam Physician, 2012 Jan 1;85(1):49-56.
  24. Robert W. Rand and Paul H. Crandall, Surgical treatment of cervical osteoarthritis, Calif Med. 1959 Oct; 91(4): 185–188.
  25. Marley J; et al. A systematic review of interventions aimed at increasing physical activity in adults with chronic musculoskeletal pain, Syst Rev. 2014 Sep 19; 3:106)
  26. Kieran Michael Hirpara, Joseph S. Butler, Roisin T. Dolan, John M. O'Byrne, and Ashley R. Poynton. Nonoperative Modalities to Treat Symptomatic Cervical Spondylosis. Adv Orthop. 2012; 2012: 294857.
  27. Michael A McCaskey et al.; Effects of proprioceptive exercises on pain and function in chronic neck- and low back pain rehabilitation: a systematic literature review; BMC Musculoskeletal Disorders BMC series – open, inclusive and trusted 201415:382
  28. A.R. Gross et al.; Exercises for mechanical neck disorders: A Cochrane review update; Manual Therapy 24 (2016) 25-45
  29. Dusunceli Yesim et al.; Efficacy of neck stabilization exercises for neck pain: A randomized controlled study; Journal of Rehabilitation Medicine, Volume 41, Number 8 ( level of evidence: 1B)
  30. Tunwattanapong P et al.; The effectiveness of a neck and shoulder stretching exercise program among office workers with neck pain: a randomized controlled trial. Clin Rehabil. 2016 Jan;30(1):64-72.
  31. Almeida GP, Carneiro KK, Marques AP. Manual therapy and therapeutic exercise in patient with symptomatic cervical spondylotic myelopathy: a comprehensive review. J Bodyw Mov Ther. 2013 Oct;17(4):504-9.
  32. Mihaly Olah, Levente Molnar, Jozsef Dobai ;The effects of weightbath traction hydrotherapy as e component of complex physical therapy in disorders of the cervical and lumbar spine: a controlled pilot study with follow up; 12 January 2008
  33. Márta Kurutz and Tamás Bender ; Weightbath hydrotraction treatment: application, biomechanics, and clinical effects ; Journal of multidisciplinary Healthcare ; April 2010
  34. Nakajima et al., Difference in Clinical Effect between Deep and Superficial Acupuncture Needle Insertion for Neck-shoulder Pain: a Randomized Controlled Clinical Trial Pilot Study, January, 23, 2015
  35. Rutjes A. W. S. et al., Therapeutic ultrasound for osteoarthritis, 2010, Cochrane review.
  36. David H. Trock, Alfred Jay Bollet and Richard Markoll; The effect of pulsed electromagnetic fields in the treatment of osteoarthritis of the knee and cervical spine. Report of randomized, Double blind, placebo controlled trial ; J Rheumatol 1994
  37. F. Özdemir, M. Britane and Kokino ; Department of Physical therpy and rehabilitation, Medical faculty of Trakya university ;The clinical efficacy of low-power laser therapy on pain and function in Cervical Osteoarthritis. ; Clinical Rheumatology , 2001 , Turkey
  38. Bjordal et al: A systematic review of low level laser therapy with location-specific doses for pain from joint disorders; Australian Journal of Physiotherapy 2003 Vol. 49, 107-116
  39. Chow RT. et al; efficacy of low level laser therapy in the management of neck pain: a systematic review and meta-analysis of randomised placebo or active-treatment controlled trials; the lancet; nov 13,2009