title: Long-term clinical results and MRI changes after tendon ball arthroplasty for advanced Kienbock's disease.
abstract: The purpose of this study was to assess the long-term clinical results and morphological changes after tendon ball arthroplasty for advanced Kienböck's disease. Twenty-six patients were reviewed, with a mean follow-up interval of 125 months (range 50-226). At follow-up, mean score on the Disabilities of the Arm, Shoulder, and Hand questionnaire was 7.7 and mean visual analogue scale score for pain was 1. Mean carpal height ratio was significantly reduced with respect to the pre-operative value. On magnetic resonance imaging scans, cartilage damage, synovitis, and erosive or oedematous changes in the bones were detected in most patients. Calcification in the defect filled by the tendon ball was seen in all patients. Narrowing of the radioscaphoid joint and the presence of intercarpal synovitis were negatively associated with clinical outcome. Tendon ball arthroplasty in advanced Kienböck's disease results in long-term satisfactory clinical outcomes, despite widespread changes in the bones and joints within the wrist.
authors.affiliation: Department of Orthopaedic Surgery, Federico II University, Naples, Italy. maricond@unina.it
authors.forename: M
authors.initials: M
authors.lastname: Mariconda
authors.forename: E
authors.initials: E
authors.lastname: Soscia
authors.forename: C
authors.initials: C
authors.lastname: Sirignano
authors.forename: F
authors.initials: F
authors.lastname: Smeraglia
authors.forename: A
authors.initials: A
authors.lastname: Soldati
authors.forename: G
authors.initials: G
authors.lastname: Balato
mesh_terms: D000328:Adult; D001178:Arthroplasty / Q000379:methods*; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000473:pathology* / Q000601:surgery*; D010147:Pain Measurement; D011795:Surveys and Questionnaires; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
keywords: Kienböck’s disease; Lunate; avascular necrosis; magnetic resonance imaging; tendon ball arthroplasty; wrist