Altered knee kinematics in ACL-deficient non-copers: A comparison using dynamic MRI

Altered knee kinematics in ACL-deficient non-copers: a comparison using dynamic MRI.

Kinematics measured during a short arc quadriceps knee extension exercise were compared in the knees of functionally unstable ACL-deficient patients, these patients' uninjured knees, and uninjured control subjects' knees. Cine phase contrast dynamic magnetic resonance imaging, in combination with a model-based tracking algorithm developed by the authors, was used to measure tibiofemoral kinemat...

THE RELATIONSHIP BETWEEN MUSCULAR CO-CONTRACTION AND DYNAMIC KNEE STIFFNESS IN ACL-DEFICIENT NON-COPERS by

Knee Joint Compression and Shear Forces in Healthy and Acl Deficient Copers and Non-copers during Walking

INTRODUCTION Different walking and movement patterns have been observed between anterior cruciate ligemant (ACL) deficient subjects that compensate well for their injury (copers) and those who do not (non-copers). Basically, previous studies observed that the movement pattern of copers was very similar to that of healthy subjects while the movement pattern observed in non-copers was different. ...

Upright MRI in kinematic assessment of the ACL-deficient knee.

The ability to quantify in vivo femoro-tibial relations in the knee holds great advantage to further patient care. There is little consensus on the optimal weight-bearing environment and measurement method for MRI assessment of in vivo knee kinematics. This study set out to establish the optimal method of measuring femoro-tibial relations in an upright, weight-bearing environment in normal indi...

In Vivo Knee Kinematics of ACL-deficient Patients after Unicompartmental Knee Arthroplasty

Introduction: In cases where a patient has arthritis in the medial side of their knee and has anterior cruciate ligament deficiency (ACLD), an operating surgeon has three options; (1) perform unicompartmental knee arthroplasty (UKA-ACLD), (2) perform unicompartmental knee arthroplasty and also reconstruct the ACL (UKA-ACLR), or (3) perform total knee arthroplasty (TKAACLD) which would require s...