title: Factors affecting the outcome of distal realignment for patellofemoral disorders of the knee.
abstract: This study correlated the risk factors with the clinical outcome of distal realignment for patellofemoral disorders in 48 patients with 53 knees with 25 to 96 months follow-up. The indications for surgery included pain and disability due to patellofemoral disorders with failure of at least 6 months of conservative treatments. The evaluations included pain scores, Lysholm functional scores and radiographs of the knee. The overall results were satisfactory in 47 knees (88.7%) and unsatisfactory in six knees (11.3%). There was no correlation of the clinical results with age, sex, body weight and body height, preoperative pain scores and Lysholm scores. However, the clinical outcome correlated with the severity of articular damage and the correction of patellar malalignment. Error in patient selection and inadequate surgical technique were attributable to poor outcomes.
authors.affiliation: Department of Orthopedic Surgery, Chang Gung Memorial Hospital, 123 Ta-Pei Road, Niao-Sung Hsiang, Kaohsiung 833, Taiwan. w281211@adm.cgmh.org.tw
authors.forename: Ching-Jen
authors.initials: CJ
authors.lastname: Wang
authors.forename: Yi-Sheng
authors.initials: YS
authors.lastname: Chan
authors.forename: Han-Hsiang
authors.initials: HH
authors.lastname: Chen
authors.forename: Su-Ter
authors.initials: ST
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D000328:Adult; D017760:Bone Malalignment / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000009:adverse effects / Q000379:methods; D017063:Outcome Assessment, Health Care; D010147:Pain Measurement; D010329:Patella / Q000000981:diagnostic imaging / Q000601:surgery*; D017060:Patient Satisfaction; D018579:Patient Selection; D011859:Radiography; D012307:Risk Factors; D013624:Taiwan