title: Long-term follow-up of distal femoral varus osteotomy of the knee.
abstract: Distal femoral varus osteotomy (DFVO) of the knee may be indicated for young, active patients with unicompartmental arthritis and valgus deformity. We report on 40 DFVOs with a mean follow-up of 123 months. At the most recent follow-up, 24 knees had good or excellent results (60%), 3 had fair results (7.5%), and 3 had poor results (7.5%). Four in the fair/poor group were awaiting total knee arthroplasty. Eight knees (20%) had been converted to total knee arthroplasty. Mean Knee Society objective score improved from 18 (range, 0-74) to 87.2 (range, 50-100). Mean Knee Society function score improved from 54 (range, 0-100) to 85.6 (range, 40-100). Ten-year survival rate of the DFVO was 82% (95% confidence interval, 75%-89%) and the 15-year survival rate was 45% (95% confidence interval, 33%-57%).
authors.affiliation: Division of Orthopaedic Surgery, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.
authors.forename: David
authors.initials: D
authors.lastname: Backstein
authors.forename: Guy
authors.initials: G
authors.lastname: Morag
authors.forename: Samer
authors.initials: S
authors.lastname: Hanna
authors.forename: Oleg
authors.initials: O
authors.lastname: Safir
authors.forename: Allan
authors.initials: A
authors.lastname: Gross
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016916:Joint Deformities, Acquired / Q000000981:diagnostic imaging / Q000601:surgery*; D007719:Knee Joint / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D010027:Osteotomy / Q000379:methods*; D011859:Radiography; D016896:Treatment Outcome