Impingement between the reconstructed anterior cruciate ligament (ACL) and surrounding tissues can lead to failure of ACL surgeries due to complex knee movements and anatomical differences.
An in vivo study on sheep with tendon autograft ACL reconstruction revealed high variability in graft damage, with a focus on factors like overstretching and wear during movement.
A new wear index developed to measure friction between the graft and bones showed a strong negative correlation with graft damage, suggesting it can help improve surgical planning and reduce implant failure risks.