Which passive movement causes weakness in deep posterior compament syndrome?: (A) Foot abduction, (B) Foot inversion, (C) Plantar flexion of foot, (D) Foot adduction
Answer is B. The deep posterior compament contains the flexor hallucis longus, flexor digitorum longus, and posterior tibialis muscles, as well as the posterior tibial nerve. In deep posterior compament syndrome, paresthesias in the plantar aspect of the foot and weakness of toe flexion and foot inversion. Ref: ACSM's Spos Medicine: A Comprehensive Review edited by Francis G. O'Connor, 2012, Page 681.