Resisted AC Joint Extension Test: Difference between revisions

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{{#ev:youtube|YHdZQnV0KhU}}<ref name="Youtube 1">Resisted AC Joint Extension Test from https://www.youtube.com/watch?v=YHdZQnV0KhU. Last accessed April 1, 2016.</ref>
{{#ev:youtube|YHdZQnV0KhU}}<ref name="Youtube 1">Resisted AC Joint Extension Test from https://www.youtube.com/watch?v=YHdZQnV0KhU. Last accessed April 1, 2016.</ref>


== Evidence  ==
== Evidence<ref name="Chronopoulos et al">Chronopoulos E1, Kim TK, Park HB, Ashenbrenner D, McFarland EG. Diagnostic value of physical tests for isolated chronic acromioclavicular lesions. Am J Sports Med, 2004; 32(3): 655-61.</ref> ==


Provide the evidence for this technique here
{| cellspacing="1" cellpadding="1" border="1" style="width: 400px; height: 120px;"
|+ ''Diagnostic Test Properties for the Resisted AC Joint Extension Test''
|-
| Sensitivity (%)
| &nbsp; &nbsp; &nbsp; &nbsp; 72
|-
| Specificity (%)
| &nbsp; &nbsp; &nbsp; &nbsp; 85
|-
| Positive Predictive Value (%)
| &nbsp; &nbsp; &nbsp; &nbsp; 20
|-
| Negative Predictive Value (%)
| &nbsp; &nbsp; &nbsp; &nbsp; 98
|}
 
<br> '''Test Item Cluster:'''<br> This test can be combined with the Cross Body Adduction Test and O'Brien's Active Compression Test as part of a cluster.
 
{| cellspacing="1" cellpadding="1" border="1" style="width: 700px; height: 120px;"
|+ ''Diagnostic Value of Combined Physical Tests''
|-
|
| Sensitivity (%)
| Specificity (%)
| Positive Predictive Value (%)
| Negative Predictive Value (%)
|-
| Positive in 3/3
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 25
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 97
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 31
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 96
|-
| Positive in 2/3
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 81
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 89
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 28
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 99
|-
| Positive in 1/3
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 74
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 17
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;100
|}


== Resources  ==
== Resources  ==

Revision as of 19:53, 11 April 2016

Original Editor - Evan Thomas

Lead Editors - Evan Thomas, Rachael Lowe, Kim Jackson, Kai A. Sigel, WikiSysop, 127.0.0.1, Naomi O'Reilly, Wanda van Niekerk and Manisha Shrestha

Purpose[edit | edit source]

Resisted AC Joint Extension Test (or the AC Resisted Extension Test) is used to help identify acromioclavicular joint pathology in both traumatic and non-traumatic/chronic overuse cases,[1] and can be useful in helping differentiate between AC joint and impingement syndromes.[2]

Technique[3][edit | edit source]

  1. The patient is seated with the therapist standing behind him/her
  2. The patient's shoulder is positioned into 90 flexion and internal rotation, with the placed into 90 flexion
  3. The therapist places his/her hand on the patient's elbow and asks him/her to horizontally abduct the arm against isometric resistance
  4. A positive test is pain at the AC joint

[4]

Evidence[5][edit | edit source]

Diagnostic Test Properties for the Resisted AC Joint Extension Test
Sensitivity (%)         72
Specificity (%)         85
Positive Predictive Value (%)         20
Negative Predictive Value (%)         98


Test Item Cluster:
This test can be combined with the Cross Body Adduction Test and O'Brien's Active Compression Test as part of a cluster.

Diagnostic Value of Combined Physical Tests
Sensitivity (%) Specificity (%) Positive Predictive Value (%) Negative Predictive Value (%)
Positive in 3/3           25           97                       31                       96
Positive in 2/3           81           89                       28                       99
Positive in 1/3            0           74                       17                      100

Resources[edit | edit source]

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

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References[edit | edit source]

  1. ↑ Miller MD &amp; Thompson SR. DeLee &amp; Drez's Orthopaedic Sports Medicine (4th Ed). Philadelphia, PA: Elsevier.
  2. ↑ Frontera WR, Silver JK, Rizzo TD (Jr). Essentials of Physical Medicine and Rehabilitation (3rd Ed). Philadelphia, PA: Elsevier.
  3. ↑ Cook CE & Hegedus EJ. Orthopedic Physical Examination Tests: An Evidence-Based Approach (2nd Ed). Boston, MA: Pearson.
  4. ↑ Resisted AC Joint Extension Test from https://www.youtube.com/watch?v=YHdZQnV0KhU. Last accessed April 1, 2016.
  5. ↑ Chronopoulos E1, Kim TK, Park HB, Ashenbrenner D, McFarland EG. Diagnostic value of physical tests for isolated chronic acromioclavicular lesions. Am J Sports Med, 2004; 32(3): 655-61.


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