Fig. 4From: Native knee kinematics is not reproduced after sensor guided cruciates substituting total knee arthroplastyAnalysis of the external tibial rotation during the stance phase of gait. The bi-cruciate substituting PS TKA group showed a significant loss of external rotation at heel strike, both in the prosthetic knee as well as in the contralateral knee. This paradox motion is typical of anterior cruciate ligament (ACL) deficient kneesBack to article page