Rupture of a flexor pollicis longus repair in a body builder through the use of an electronic muscle stimulator.

Involvement of tendons in hand lacerations is common, and immediate treatment involves exploration and primary repair. A programme of protected rehabilitation to allow healing and prevent rupture must follow. An unusual case is reported of tendon rupture in a body builder caused by use of an electronic muscle stimulator. Body builders should be warned about this mode of rupture, which has not been previously reported, during their rehabilitation.