Drop Arm Test |
Other Names |
Drop Sign
Test, Codman’s Test |
Examination type |
Muscle Test,
ROM |
Patient & Body Segment Positioning |
The patient
should be standing with arms resting at sides. |
Examiner Position |
Examiner
should stand directly in front of or behind the patient. |
Tissues
Being Tested |
Rotator Cuff
Muscles (specifically the supraspinatus muscle) |
Performing the Test |
Have patient
actively abduct the shoulder to 900. If the patient
is not able to actively abduct the shoulder, then the examiner
should passively abduct the shoulder to 900 and ask
the patient to hold the arm in that position. Next have the
patient slowly adduct or lower the arm towards the body. If the
patient can lower the arm without problem, the test should be
performed again and the examiner should apply a slight tap on
the forearm when the arm is abducted at 900. |
Positive Test |
This test
will be positive if the patient can not control the adduction
movement of the arm and the arm drops to the patient’s side. A
positive test is also indicated if the patient has severe pain
with the adduction movement. |
Interpretation |
Indicates a
possible tear of the rotator cuff with the most specific muscle
being the supraspinatus. |
Common errors in
performing exam |
Not allowing
the athlete to try to actively abduct and then adduct the arm
before passively abducting the arm or tapping on the arm. |
Factors possibly
resulting in misinterpretation |
Be sure to
watch for patient compensation. The patient may elevate their
shoulder girdle to help them with shoulder abduction. |
Related tests |
Supraspinatus Test (Empty Can Test), Painful Arc, and Abrasion
Test |
References |
Booher, James
M., & Thibodeau Gary A. (2000). Athletic Injury Assessment
Fourth Edition. U.S.A.: McGraw-Hill.
Magee, David J.
(2002). Orthopedic Physical Assessment. Philadelphia, PA:
Elsevier.
Prentice,
William E. (2003). Arnheim’s Principles of Athletic Training
A Competency-Based Approach. U.S.A.: McGraw-Hill Companies,
INC. |
Links: |
http://goaggies.cameron.edu/training/study21
http://www.fpnotebook.com/ORT124.htm
http://www.emedmag.com/html/pre/cov/covers/021505.asp
http://medinfo.ufl.edu/year1/bcs/slides/extrem/slide15.html
http://www.wheelessonline.com/ortho/shoulder_physical_exam
http://www.physiatry.org/education/Massagli/CD/Sports%20Med%20lecture.doc |
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