Apprehension Test |
Other Names |
Crank Test |
Examination type |
Joint
stability |
Patient & Body Segment Positioning |
Patient lies
supine on a table with the involved shoulder abducted to 900
and the elbow flexed to 900. |
Examiner Position |
Examiner
stands beside the athlete with one hand under the elbow to
support the arm and act as a fulcrum and the other hand on the
athlete’s wrist to externally rotate the shoulder. |
Tissues
Being Tested |
Glenoid
Labrum, inferior glenohumeral ligament |
Performing the Test |
With the
subject’s involved shoulder in 90 degrees of abduction and the
elbow in 90 degrees of flexion, the examiner slowly externally
rotates the shoulder by placing a downward force on the
patient’s wrist. |
Positive Test |
Apprehension
of the patient toward further movement into external rotation
direction or pain. The examiner may also notice anterior
translation or subluxation of the humeral head. This test is
used to mimic the positioning and movement of an anterior
dislocation of the glenohumeral joint, thus recreating a
subject’s episode of instability. |
Interpretation |
Anterior
instability of the glenohumeral joint. |
Common errors in
performing exam |
Externally
rotating or “cranking” the shoulder too quickly can cause
excessive apprehension, pain, or anterior subluxation of the
humeral head. |
Factors possibly
resulting in misinterpretation |
Shoulder
impingement can also cause the Apprehension test to be positive. |
Related tests |
Load and
Shift Test, Fulcrum Test, Anterior Drawer Test, Jobe Relocation
Test, and Feagin Test |
References |
Konin. Special
Test for Orthopedic Examination. 2nd Ed. 2002.
pp.103.
Magee.
Orthopedic Physical Assessment. 4th Ed. 2002. pp.396. |
Links: |
http://www.fpnotebook.com/ORT76.htm
http://www.eorthopod.com/area/10
http://www.maitrise-orthop.com/corpusmaitri/orthopaedic/88.html
http://www.athleticadvisor.com/Injuries/UE/Shoulder/shoulder_dislocation.htm |
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