Changes in knee joint load indices from before to 12 months after arthroscopic partial meniscectomy: a prospective cohort study

Osteoarthritis and Cartilage
Jonas Bloch ThorlundL S Lohmander

Abstract

Patients undergoing arthroscopic partial meniscectomy (APM) are at increased risk of knee osteoarthritis (OA). Meniscal damage and/or surgery may alter knee joint loading to increase OA risk. We investigated changes in knee joint loading following medial APM surgery, compared with the contra-lateral leg. We estimated indices of knee joint loading (external peak knee adduction moment (KAM), KAM impulse and peak knee flexion moment (KFM)) normalized to body size (i.e., body mass (BM) and height (HT)) using 3D gait analysis in 23 patients (17 men, mean (SD) 46.2 (6.4) years, BMI 25.8 (3.4) kg/m(2)) without radiographic knee OA before and 12 months after medial APM. Static alignment was assessed by radiography and self-reported outcomes by Knee injury and Osteoarthritis Outcome Score (KOOS). Peak KAM and KAM impulse increased in the APM leg compared to the contra-lateral leg from before to 12 months after surgery (change difference: 0.38 Nm/BM*HT% 95% CI 0.01 to 0.76 (P = 0.049) and 0.20 Nm*s/BM*HT% 95% CI 0.10 to 0.30 (P < 0.001)). Patients self-reported improvements on all KOOS subscales (KOOS pain improvement: 22.8 95% CI 14.5 to 31.0 (P < 0.01)). A relative increase in indices of medial compartment loading was observed in the l...Continue Reading

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Citations

Sep 22, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tina GanderupJonas B Thorlund
Apr 19, 2017·The American Journal of Sports Medicine·Michelle HallKim L Bennell
Jul 19, 2018·The Journal of Bone and Joint Surgery. American Volume·Jacob J CapinLynn Snyder-Mackler
Sep 25, 2018·The Journal of the American Academy of Orthopaedic Surgeons·Brian T Feeley, Brian C Lau
Jan 23, 2020·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Marcin WolskiPawel Podsiadlo
Jul 16, 2020·The American Journal of Sports Medicine·Kyle R SochackiSeth L Sherman
Feb 18, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Ph BeaufilsR Seil
Oct 18, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tomoharu MochizukiHiroyuki Kawashima

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