“Trendelenburg sign” isn’t positive in damage of the following nerve
Correct Answer: Superior gluteal nerve
Description: Causes of positive trendelenberg test: *There are three fundamental causes: 1) Paralysis of the abductor muscles *eg. Polio *Paralysis of superior gluteral nerve 2) Marked approximation of the inseion of the abductor muscle to their origin by upward displacement of the greater trochanter; so that muscles are slack. *eg. Severe coxa vara *Dislocation of hip 3) Absence of stable fulcrum & lever arm about which the abductor muscles can act *Neck femur fracture *Dislocation of hip :Ref: Maheshwari 4th/e p.348
Category:
Orthopaedics
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