Journal: Orthopaedic Journal of Sports Medicine
Article Title: Simulated Biomechanical Analysis of Optimal Knee Alignment for Treating Medial Meniscus Posterior Root Tears
doi: 10.1177/23259671251344944
Figure Lengend Snippet: Comparison of contact pressure and contact area between the intact (light gray line), medial meniscus posterior root tear (MMPRT; black line), and repair (dark gray line) conditions at various alignments from 30% to 70% weightbearing line (WBL) in the medial compartment. (A) Peak contact pressure (PCP) at neutral alignment in the intact condition equaled that at 60% to 65% WBL and at 50% to 55% WBL in the MMPRT and repair conditions, respectively. (B) Mean contact pressure (MCP) at neutral alignment in the intact condition equaled that at 60% to 65% WBL and at 50% to 55% WBL in the MMPRT and repair conditions, respectively. The horizontal dashed lines represent (A) PCP or (B) MCP in the intact condition at 50% WBL. The light gray shaded areas indicate the range of alignments, where the dashed lines intersect with the dark gray lines (repair condition). The dark gray shaded areas represent the range of alignments, where the dashed lines intersect with the black lines (MMPRT condition). (C) An MMPRT significantly decreased the contact area compared with the intact condition, whereas MMPRT repair significantly increased the contact area compared with the MMPRT condition, particularly at 30% to 55% WBL. a Statistical significance ( P < .05) for intact versus MMPRT condition. b Statistical significance ( P < .05) for MMPRT versus repair condition.
Article Snippet: After selecting an alignment, a joint load of 700 N, simulating a single-leg stance of a 70-kg person, was applied along the vector for 30 seconds., Medial and lateral compartment pressures were recorded using Tekscan software at 6 frames/s during this time.
Techniques: Comparison