Gait analysis before and after corrective osteotomy in patients with knee osteoarthritis and a valgus deformity

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
N van EgmondN L W Keijsers

Abstract

In this prospective study, the changes in kinetics and kinematics of gait and clinical outcomes after a varus osteotomy (tibial, femoral or double osteotomy) in patients with osteoarthritis (OA) of the knee and a valgus leg alignment were analysed and compared to healthy subjects. Twelve patients and ten healthy controls were included. Both kinetics and kinematics of gait and clinical and radiographic outcomes were evaluated. The knee adduction moment increased significantly postoperatively (p < 0.05) and almost similar to the control group. Patients showed less knee and hip flexion/extension motion and moment during gait pre- and postoperatively compared to the controls. A significant improvement was found in WOMAC [80.8 (SD 16.1), p = 0.000], KOS [74.9 (SD 14.7), p = 0.018], OKS [21.2 (SD 7.5), p = 0.000] and VAS-pain [32.9 (SD 20.9), p = 0.003] in all patients irrespective of the osteotomy technique used. The radiographic measurements showed a mean hip knee ankle (HKA) angle correction of 10.4° (95 % CI 6.4°-14.4°). In patients with knee OA combined with a valgus leg alignment, the varus-producing osteotomy is a successful treatment. Postoperatively, the patients showed kinetics and kinematics of gait similar as that of a he...Continue Reading

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Citations

Jun 4, 2019·The American Journal of Sports Medicine·Alexander HoorntjeRonald J van Heerwaarden
Mar 27, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·W A M van LieshoutR J van Heerwaarden
Jan 8, 2020·Orthopaedic Journal of Sports Medicine·Alexander HoorntjeRonald J van Heerwaarden
Jun 11, 2021·Orthopaedic Surgery·Haining PengYi Zhang

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