Flexor digitorum profundus (FDP) rupture is commonly seen ... Avulsion of an isolated flexor digitorum superficialis (FDS) tendon is rare, and the exact pathology is uncertain.

Flexor digitorum superficialis avulsion has also been reported in association with avulsion of the FDP tendon. [3,8,9] The avulsion occurs from the bone at its site of insertion. The present case ...