Fibrodysplasia Ossificans Progressiva

 

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Definition/Description[edit | edit source]

Fibrodysplasia Ossificans Progressiva is a rare, genetic disorder than transforms ligaments, muscles and tendons into bone outside the skeleton that impairs movement.

Prevalence[edit | edit source]

  • 1 in every 2 million people are diagnosed with Fibrodysplasia Ossificans Porgressiva
  • Nearly 90% of the time it is misdiagnosed and mismanaged. (Lakkrieddy)
  • 67% undergo invasive procedures for diagnosis and treatment
  • More than 50% end up with lifelong disabilities
  • Mostly occurs in children

Characteristics/Clinical Presentation[edit | edit source]

  • Pneumonia and right sided heart failure
  • Controversial malformations
  • Ossification of intercostal muscles
  • Kyphoscoliosis and lordosis
  • Severe weight loss
  • Torticollis
  • TMJ complications
  • Acute flare-ups due to:

      • intramuscular immunizations
      • mandibular blocks for dental work
      • muscle fatigue
      • blunt muscle trauma from bumps
      • bruises
      • falls
      • influenza-like viral illnesses

Medications[edit | edit source]

For acute flare-ups:

  • short term high does corticosteroids
  • NSAIDS
  • Biophosphonates


  • Radiotherapy 

Diagnostic Tests/Lab Tests/Lab Values[edit | edit source]

Blood samples

  • Indicate presense of heterozygous R206H mutation of the ACVR1 gene 

Etiology/Causes[edit | edit source]

  • Genetic R206H mutation of the ACVR1 gene
  • ACVR1 gene is a bone morphogenetic protein (BMP) type1 receptor signaling endochondral ossification
  • R206H mutation leads to an increase in enhanced BMP signaling
  • Confirmation of a heterozygous gene mutation of the ACVR1 gene

Systemic Involvement[edit | edit source]

Cardiopulmonary system

  • Lungs affected caused by thoracic insufficiencies
  • Restrictive pulmonary diseases


Nervous system

  • Middle ear ossifications
  • Hearing impairments 

Medical Management (current best evidence)[edit | edit source]

Medications 

  • Reduces the pain and severity of flare-ups

Surgical release of joint contractures

  • Usually unsuccessful

Osteotomy of heterotropic bone

  • Mobilizes joints
  • Usually counterproductive because new heterotrophic ossificans can form at the site

Repositioned surgically

  • Improves the patients overall functional status
  • Rare


Ultimately, there is not much that can be done to cure this disease.

Physical Therapy Management (current best evidence)[edit | edit source]

  • Maintain ROM in the affected joints
  • Enhance the ease of ADL’s
  • Make their functional activities as easy as possible
  • Taping
  • Stretching
  • Positioning
  • Education to relieve contractures

Differential Diagnosis[edit | edit source]

Myositis Ossificans
Heterotropic Ossificans
Juvenile Fibromatosis
Lymphoedema
Soft tissue sarcomas

Case Reports/ Case Studies[edit | edit source]

 1. Lakkireddy M, Chilakamarri V, Ranganath P, Arora A, Vanaja M. Clinical and Genetic Analysis of Fibrodysplasia Ossificans Progressiva: A Case Report and Literature Review. Journal Of Clinical & Diagnostic Research [serial online]. August 2015;9(8):1-3. Available from: Academic Search Complete, Ipswich, MA.

http://eds.b.ebscohost.com.libproxy.bellarmine.edu/ehost/pdfviewer/pdfviewer?sid=9edb8546-3494-4276-9379-f01cedb2286c%40sessionmgr114&vid=12&hid=114


2. Rogoveanu O, Traistaru R, Streba CT, Stoica Z, Popescu R. Clinical, evolution and therapeutical considerations upon a case of fibrodysplasia ossificans progressiva (FOP). J Med Life. 2013;6(4):454-8.

http://eds.a.ebscohost.com.libproxy.bellarmine.edu/ehost/pdfviewer/pdfviewer?sid=b5a8ae2d-427e-4b53-8193-5f7b0dca250a%40sessionmgr4005&vid=9&hid=4203


3. Ulusoy H. Fibrodysplasia ossificans progressiva without characteristic skeletal anomalies. Rheumatol Int. 2012;32(5):1379-82.

http://search.proquest.com.libproxy.bellarmine.edu/docview/1013442999/EF79DA28CC94937PQ/2?accountid=6741

Resources
[edit | edit source]

add appropriate resources here

Recent Related Research (from Pubmed)[edit | edit source]

see tutorial on Adding PubMed Feed

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References[edit | edit source]

Kaplan FS, Le merrer M, Glaser DL, et al. Fibrodysplasia ossificans progressiva. Best Pract Res Clin Rheumatol. 2008;22(1):191-205.

Lakkireddy M, Chilakamarri V, Ranganath P, Arora A, Vanaja M. Clinical and Genetic Analysis of Fibrodysplasia Ossificans Progressiva: A Case Report and Literature Review. Journal Of Clinical & Diagnostic Research [serial online]. August 2015;9(8):1-3. Available from: Academic Search Complete, Ipswich, MA. Accessed March 19, 2016.

Ulusoy H. Fibrodysplasia ossificans progressiva without characteristic skeletal anomalies. Rheumatol Int. 2012;32(5):1379-82.