title: Muscular and neurologic function in patients with recurrent dislocation after total hip arthroplasty: a matched controlled study of 65 patients using dual-energy X-ray absorptiometry and postural stability tests.
abstract: Twenty-two patients with recurrent dislocation after primary total hip arthroplasty (THA) were compared with 43 randomly selected, stratified THA patients without dislocation with regard to radiographic cup position; body composition of bone, fat, and muscle (lean body mass) as determined by dual-energy x-ray absorptiometry; strength in abduction and adduction; range of motion; balance; and vibration sense. Balance and sensitivity to vibration were impaired in the patients with dislocation. No differences were found in any other variables except a subset of tall men in the dislocation group.
authors.affiliation: Department of Orthopaedics, Malmö University Hospital, University of Lund, Sweden.
authors.forename: U
authors.initials: U
authors.lastname: Hedlundh
authors.forename: M
authors.initials: M
authors.lastname: Karlsson
authors.forename: K
authors.initials: K
authors.lastname: Ringsberg
authors.forename: J
authors.initials: J
authors.lastname: Besjakov
authors.forename: H
authors.initials: H
authors.lastname: Fredin
mesh_terms: D015502:Absorptiometry, Photon; D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D016022:Case-Control Studies; D005260:Female; D006617:Hip Dislocation / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000294:innervation / Q000503:physiopathology; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000503:physiopathology; D011187:Posture / Q000502:physiology; D011475:Prosthesis Failure; D011897:Random Allocation; D016059:Range of Motion, Articular / Q000502:physiology; D012008:Recurrence; D014732:Vibration