title: Recurrent dislocation of the patella. Histochemical and electromyographic evidence of primary muscle pathology.
abstract: The role of muscle function in the aetiology of recurrent dislocation of the patella has been examined. Eleven of the 12 patients we studied had joint hypermobility. Muscle biopsies from eight of nine patients treated by surgery had a predominance of abnormal Type 2C fibres, and three of six patients whose quadriceps muscles were studied by electromyography also had abnormal results. Our preliminary findings suggest that there may be a primary muscular defect in many cases of recurrent dislocation of the patella.
authors: Princess Margaret Rose Orthopaedic Hospital, Edinburgh, Scotland.
authors: A
authors: A
authors: Floyd
authors: P
authors: P
authors: Phillips
authors: M R
authors: MR
authors: Khan
authors: J N
authors: JN
authors: Webb
authors: A
authors: A
authors: McInnes
authors: S P
authors: SP
authors: Hughes
mesh_terms: D000293:Adolescent; D000328:Adult; D001706:Biopsy; D004576:Electromyography; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D007593:Joint Instability / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology; D007719:Knee Joint; D008297:Male; D009132:Muscles / Q000201:enzymology / Q000473:pathology; D009135:Muscular Diseases / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D010329:Patella / Q000293:injuries*; D012008:Recurrence