Quantification of the role of tibial posterior slope in knee joint mechanics and ACL force in simulated gait.

摘要: Abstract The anterior cruciate ligament (ACL) rupture is a common knee joint injury with higher prevalence in female athletes. In search of contributing mechanisms, clinical imaging studies ACL-injured individuals versus controls have found greater medial–lateral posterior tibial slope (PTS) injured population irrespective the sex and females compared to males, stronger evidence on lateral plateau slope. To quantify these effects, we use lower extremity musculoskeletal model including detailed finite element (FE) compute role changes medial and/or PTS by ±5° ±10° biomechanics, general, ACL force, particular, throughout stance phase gait. driven reported kinematics/kinetics gait asymptomatic subjects. Our predictions showed, at all periods, substantial increase translation (ATT) force as increased reverse trends decreased. At mid-stance, for example, from 181 N 317 N 460 N 5° 10°, respectively, while dropped 102 N 0 N changed –5° –10°, respectively. These effects are caused primarily change that carries larger portion contact force. Steeper major risk factor, especially under activities large compression, markedly increasing its vulnerability injury. Rehabilitation prevention programs could benefit findings.