Athletic Training & Sports Medicine Center

 

Examination Links:

 

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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