title: [Snapping pes syndrome with a loose bone fragment is a rare cause for medial knee pains].
abstract: A case of a patient with snapping pes syndrome following a blunt trauma to the knee is presented. Snapping pes syndrome is a painful catching experienced at the posteromedial corner of the knee from pes anserinus when moving from flexion to extension. Since the accident ten years ago the patient experienced a painful snapping phenomenon on the inner side of the knee. MRI and arthroscopies found no explanation. Ultrasound revealed that the semitendinosus snapped over a bony fragment during extension of the knee. Removal of the fragment resulted in remission.
authors.affiliation: Ortopædkirurgisk Afdeling, Odense Universitetshospital, 5000 Odense, Denmark. rolandknudsen@hotmail.com
authors.forename: Roland
authors.initials: R
authors.lastname: Knudsen
authors.forename: Zaid
authors.initials: Z
authors.lastname: Al-Aubaidi
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000150:complications* / Q000175:diagnosis; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D010146:Pain / Q000175:diagnosis / Q000209:etiology*; D059408:Pain Management; D013577:Syndrome; D013710:Tendons / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D014463:Ultrasonography; D014949:Wounds, Nonpenetrating / Q000150:complications* / Q000175:diagnosis