Mallet Finger Test |
Examination type |
ROM test,
tendonous integrity |
Patient & Body Segment Positioning |
The patient
should be sitting with the forearm in pronation and the hand
relaxed on a table or other surface. |
Examiner Position |
The examiner
should hold the hand steady and isolate the involved finger by
holding the involved finger at the middle phalanx. |
Tissues
Being Tested |
The extensor
tendon at the DIP joint |
Performing the Test |
While the
examiner is holding the hand still and isolating the involved
finger by holding it at the middle phalanx, the patient should
be relaxed. Once the patient is relaxed, the examiner should
instruct the patient to try to extend the finger at the DIP
joint. |
Positive Test |
Inability to
actively extend the finger at the DIP joint |
Interpretation |
Avulsion of
the extensor tendon at the insertion on the base of the distal
phalanx |
Common errors in
performing exam |
The examiner
could make an error in where he is holding the hand to isolate
the injured finger. Another error is if the examiner does not
know what he is looking for. |
Factors possibly
resulting in misinterpretation |
The way the
hand is held could be a factor. If the wrist is in extension,
the test could be falsely interpreted. |
Related tests |
Boutonniere
Deformity Test |
References |
Booher, James
M., & Thibodeau Gary A. (2000). Athletic Injury Assessment
Fourth Edition. U.S.A.: McGraw-Hill Companies, INC
Magee, David
J. (2002). Orthopedic Physical Assessment. Philadelphia,
PA: Elsevier |
Links: |
http://www.pncl.co.uk/~belcher/Tendon%20injury.html
http://www.physsportsmed.com/issues/1998/06jun/lairmore.htm |
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