Feng Li1, Ning Liu2, Zijian Li1, Kirkham B Wood2, Hua Tian3. 1. Department of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China. 2. Department of Orthopaedic Surgery, Stanford University Medical Center, 450 Broadway Street, Redwood City, CA, 94063, USA. 3. Department of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China. tianhua@bjmu.edu.cn.
Abstract
PURPOSE: Lateral femoral sliding osteotomy has been reported as an effective technique for total knee arthroplasty (TKA) with significant valgus deformity. This study aims to investigate its utility in TKA with valgus deformity greater than 20°, for which few studies have examined. METHODS: Consecutive TKA patients with valgus deformity treated with the sliding osteotomy at our institution were retrospectively studied. Constraint implants were not used. Radiological and clinical parameters at follow-ups were compared with those pre-operatively. Radiological parameters included the hip-knee-ankle angle (HKA), the anatomical lateral distal femoral angle (aLDFA), the anatomical lateral plateau ankle angle (aLPTA), and the angle between the femoral mechanical axis and transepicondylar line (femoral transepicondylar angle, FTEA) which was used to reflect concurrent extra-articular valgus and corresponding local alignment. Clinical outcome measures included the Knee Society Score and Functional Score. RESULTS: Twenty-five patients operated on between July 2011 and February 2017 were enrolled. The average follow-up time was 3.3 (1.5~7.9) years. The pre-operative HKA of 202.7 ± 2.3° (equivalent to valgus of 22.7 ± 2.3°) was reduced to 180.4 ± 2.3° at final follow-ups (P < 0.001). The aLFDA, aLPTA, and FTEA were all significantly improved, with the last one increased from 84.2 ± 1.8° to 89.6 ± 1.6° (t = - 11.35, P < 0.001). All clinical scores were significantly improved without major complications. CONCLUSIONS: Lateral femoral sliding osteotomy can be effective and safe for TKA with severe valgus deformity greater than 20°.
PURPOSE: Lateral femoral sliding osteotomy has been reported as an effective technique for total knee arthroplasty (TKA) with significant valgus deformity. This study aims to investigate its utility in TKA with valgus deformity greater than 20°, for which few studies have examined. METHODS: Consecutive TKA patients with valgus deformity treated with the sliding osteotomy at our institution were retrospectively studied. Constraint implants were not used. Radiological and clinical parameters at follow-ups were compared with those pre-operatively. Radiological parameters included the hip-knee-ankle angle (HKA), the anatomical lateral distal femoral angle (aLDFA), the anatomical lateral plateau ankle angle (aLPTA), and the angle between the femoral mechanical axis and transepicondylar line (femoral transepicondylar angle, FTEA) which was used to reflect concurrent extra-articular valgus and corresponding local alignment. Clinical outcome measures included the Knee Society Score and Functional Score. RESULTS: Twenty-five patients operated on between July 2011 and February 2017 were enrolled. The average follow-up time was 3.3 (1.5~7.9) years. The pre-operative HKA of 202.7 ± 2.3° (equivalent to valgus of 22.7 ± 2.3°) was reduced to 180.4 ± 2.3° at final follow-ups (P < 0.001). The aLFDA, aLPTA, and FTEA were all significantly improved, with the last one increased from 84.2 ± 1.8° to 89.6 ± 1.6° (t = - 11.35, P < 0.001). All clinical scores were significantly improved without major complications. CONCLUSIONS: Lateral femoral sliding osteotomy can be effective and safe for TKA with severe valgus deformity greater than 20°.
Entities:
Keywords:
Lateral femoral sliding osteotomy; Total knee arthroplasty; Valgus deformity
Authors: Günther Maderbacher; Clemens Baier; Achim Benditz; Ferdinand Wagner; Felix Greimel; Joachim Grifka; Armin Keshmiri Journal: Int Orthop Date: 2017-01-31 Impact factor: 3.075
Authors: Brett Collins; Alan Getgood; Abdulaziz Z Alomar; J Robert Giffin; Kevin Willits; Peter J Fowler; Trevor B Birmingham; Robert B Litchfield Journal: Knee Surg Sports Traumatol Arthrosc Date: 2012-06-17 Impact factor: 4.342
Authors: Jean Yves Lazennec; Quentin Chometon; Dominique Folinais; Christopher B Robbins; Aidin Eslam Pour Journal: Int Orthop Date: 2016-11-14 Impact factor: 3.075
Authors: R Michael Meneghini; Merrill A Ritter; Jeffery L Pierson; John B Meding; Michael E Berend; Philip M Faris Journal: J Arthroplasty Date: 2006-09 Impact factor: 4.757
Authors: D Alesi; A Meena; S Fratini; V G Rinaldi; E Cammisa; G Lullini; V Vaccari; S Zaffagnini; G M Marcheggiani Muccioli Journal: Musculoskelet Surg Date: 2021-02-15