title: Inverted V-shaped high tibial osteotomy compared with closing-wedge high tibial osteotomy for osteoarthritis of the knee. Ten-year follow-up result.
abstract: We compared the results ten years after an inverted V-shaped high tibial osteotomy with those of a historical series of conventional closing-wedge osteotomies. The closing-wedge series consisted of 56 knees in 51 patients with a mean follow-up of 11 years (10 to 15). The inverted V-shaped osteotomy was evaluated in 48 knees in 43 patients at a mean follow-up of 14 years (10 to 19). All the patients were scored using the Japanese Orthopaedic Association rating scale for osteoarthritis of the knee and radiological assessment. The pre-operative grade of osteoarthritis was similar in both groups. Post-operatively, the knee function score was graded as satisfactory in 63% (35) of the closing-wedge group but in 89% (43) of the inverted V-shaped osteotomy group. Post-operative radiological examination showed that delayed union and loss of correction occurred more often after a closing-wedge osteotomy than after an inverted V-shaped procedure. Our study suggests that the inverted V-shaped osteotomy may offer more dependable long-term results than traditional closing-wedge osteotomy.
authors.affiliation: Hokushin Orthopaedic Hospital, Shiroishi-ku, 003-0823, Sapporo, Japan. yosh7aok@ba2.so-net.ne.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Aoki
authors.forename: K
authors.initials: K
authors.lastname: Yasuda
authors.forename: S
authors.initials: S
authors.lastname: Mikami
authors.forename: H
authors.initials: H
authors.lastname: Ohmoto
authors.forename: T
authors.initials: T
authors.lastname: Majima
authors.forename: A
authors.initials: A
authors.lastname: Minami
mesh_terms: D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D010147:Pain Measurement; D011183:Postoperative Complications; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D013977:Tibia / Q000000981:diagnostic imaging / Q000601:surgery*; D016896:Treatment Outcome