Alexander N Berk, William M Cregar, Shangcheng Wang, Nahir A Habet, Anna Maria Ifarraguerri, David P Trofa, Dana P Piasecki, James E Fleischli, Bryan M Saltzman
INTRODUCTION: The purpose of this study was to determine how variations in lower limb alignment affect tibiofemoral joint contact biomechanics in the setting of medial meniscus posterior root tear (MMPRT) and associated root repair. METHODS: A finite-element model of an intact knee joint was developed. Limb alignments ranging from 4° valgus to 8° varus were simulated under a 1,000 N compression load applied to the femoral head. For the intact, MMPRT, and root repair conditions, the peak contact pressure (PCP), total contact area, mean and maximum local contact pressure (LCP) elevation, and total area of LCP elevation of the medial tibiofemoral compartment were quantified...
April 19, 2024: Journal of the American Academy of Orthopaedic Surgeons