Role of positioning of femoral component in the anterior-posterior direction on postoperative anterior pain in TKA.

Introduction And Purpose: The patellofemoral joint has proved to be the most problematic element of modern TKA for postoperative anterior knee pain; the positioning of the femoral component constitutes a critical phase in this issue. The objective of our study was to evaluate the possible role of either anterior positioning or posterior positioning of the femoral shield compared to the reference plane represented by the anterior cortex, on the anterior knee pain after knee arthroplasty.

Methods: Forty-eight patients treated with TKA were followed up approximately 12 months.

In vivo kinematics of medial unicompartmental osteoarthritic knees during activities of daily living.

Few studies exist describing unicompartmental osteoarthritic knee kinematics. Moreover, the role of the anterior cruciate ligament (ACL) in the determination of knee kinematics has not been fully described. The objective of the current study was to analyze the in vivo kinematics of knees with medial osteoarthritis (OA) and intact ACL during closed and open chained motion.