Trochlear contact pressures after anteromedialization of the tibial tubercle.

Background: Anteromedialization is recommended for cartilage restoration of patellofemoral defects, with the presumption that it decreases contact pressures across the trochlea. No study has evaluated pressures on the trochlear side of the patellofemoral joint after anteromedialization of the tibial tubercle.

Hypothesis: Anteromedialization of the tibial tubercle decreases contact pressure across the trochlea.

Contact pressure at osteochondral donor sites in the patellofemoral joint.

Background: The lowest contact pressure point is presumed to be the best site to harvest an osteochondral plug and minimize morbidity.

Hypothesis: Patellofemoral contact pressures are not uniform and are lowest along the medial patellofemoral articulation.

Study Design: Controlled laboratory study.

Postoperative pain management after anterior cruciate ligament reconstruction.

This study compared pain and its management in four groups of patients after anterior cruciate ligament (ACL) surgery. Group 1 consisted of primary ACL reconstruction, group 2 primary ACL reconstruction with meniscal repair, group 3 primary ACL reconstruction with meniscal resection, and group 4 revision ACL reconstruction with patellar tendon allograft. Each patient was instructed to record his or her pain level on a visual analog pain scale (VAS) prior to the procedure and for 7 days postoperatively.