Pointing index sign is seen in ____ nerve palsy –
Correct Answer: Median nerve
Description: Pointing index sign or oschner&;s clasp test : in median nerve injury ( at a level proximal to elbow). When both hands are clasped together , index & middle finger ,fail to flex due to the loss of action of long finger flexors of index & middle fingers ( digitorum superficilais & lateral half of digitorum profundus ) . The other fingers can be flexed by the functioning medial side of the flexor digitorum profundus , supplied by the ulnar nerve. REF:textbook of ohopedics, John Ebenezer, 4th edition pg.no. 338
Category:
Orthopaedics
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