title: Diagnosing snapping sartorius tendon secondary to a meniscal cyst using dynamic ultrasound avoids incorrect surgical procedure.
abstract: We describe a case of painful snapping in the medial aspect of the knee of a 40-year-old man, following a knee hyperflexion injury. Dynamic real-time ultrasonography determined that the snapping was due to the distal tendon of sartorius passing over a medial meniscal cyst. The patient subsequently underwent arthroscopic decompression of the cyst instead of an inappropriate hamstring tendon harvest procedure, with complete resolution of symptoms.
authors.affiliation: Orthopaedic Division, Sportsmed SA, 32 Payneham Road, Stepney, SA 5069, Australia.
authors.forename: Vipin
authors.initials: V
authors.lastname: Asopa
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Douglas
authors.forename: Jonathan
authors.initials: J
authors.lastname: Heysen
authors.forename: David
authors.initials: D
authors.lastname: Martin