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Semitendinosus

The semitendinosus muscle is one of the hamstrings muscles.

The long thin tendon of the semitendinosus muscle is frequently ‘harvested’ by the surgeon for use in cruciate ligament reconstruction. It is commonly referred to as one of -the ‘pes’ or ‘pes anserinus’ tendons (semitendinosus, gracilis, sartorius) which insert on the medial (inner) aspect of the tibia in a compound tendon which looks a bit like a goose’s foot (hence the latin name ‘pes anserinus’).

The muscle may be injured in a ‘hamstrings strain’. The tendon may also be used to reconstruct a torn cruciate ligament.