Pinch Test |
Examination type |
Syndesmosis diastasis |
Patient & Body Segment Positioning |
Have the patient position short sitting on the end of the table
. |
Examiner Position |
The examiner will stand to side of the patient in a anterior
view of the patient. |
Tissues
Being Tested |
Syndesmosis diastasis, the anterior inferior ligaments, anterior
tibiofibular ligament. |
Performing the Test |
Examiner has the patient knee flex, use the index finger and
thumb of one hand to pinch the anteromedial malleolus toward the
posterolateral malleolus to appreciate reduction of the
syndesmosis diastasis, should not spread more than other side
appreciably unless anterior inferior ligaments is sprain.. |
Positive Test |
+
sign is the tibia and fibula spreads apart with pain over the
space of between the tibia and fibula
|
Interpretation |
The examiner
should be sure to check bilaterally because the amount of
opening might be normal for that
patient. If there is an increased opening from one side to
the other and pain during test then this indicates a syndesmosis
sprain.
|
Common errors in
performing exam |
Common errors in performing this test would be wrong hand
placement and not pinching hard enough |
Factors possibly
resulting in misinterpretation |
Damage to other ligaments in the
ankle that can lead to a false positive test or a fracture over
the site of pressure. |
Related tests |
Squeeze Test |
References |
Magee, David J. Orthopedic Physical Assessment 4th
Ed. Saunders Company, New York 1997. (Pg 522)
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Links: |
<www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9694130&dopt=Abstract>
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