title: An unusual double patella: a case report.
abstract: Double patella following a 'sleeve fracture' in the lower pole of the patellar is rare and even more so after surgical treatment to the original injury. We report such a case in a boy injured at the age of 10, and presenting 3 years later with weakness and effusion. The management is described, including the technique of excision of the accessory patella and the lowering of the larger patella to a normal level. We believe that this is the first such case to be reported after surgical treatment of the primary fracture.
authors.affiliation: Holly House Hospital, Buckhurst Hill, Essex, UK.
authors.forename: Eric
authors.initials: E
authors.lastname: Yeung
authors.forename: John
authors.initials: J
authors.lastname: Ireland
mesh_terms: D002648:Child; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D008297:Male; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000209:etiology*; D010329:Patella / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D011859:Radiography