Change of bone mineral density around knee joint and its influential factors after lateral meniscectomy;

Objective To evaluate the effects of five factors including age,gender,disease course,extent and location of meniscectomy to the prognosis after arthroscopic meniscectomy.

Eight cases were treated by using the lateral laminectomy and 2 cases were reduced pressure for 2 months before they were treated by using the same method.

Objective To compare the difference in articular cartilage degeneration between xenogenic medial meniscus transplantation and total medial meniscectomy in order to understand whether xenogenic medial meniscus transplantation could delay the degeneration of articular cartilage.

Objectives: This study was performed to determine the effects of intra-articular step-off and lateral meniscectomy on the alignment of the articular axis, contact area and pressures for lateral tibial plateau fractures.

Purpose of the study: Influences of total meniscectomy on articular cartilage of knee is studied to provide theo-retical basis for selection of treatment methods for meniscus injury.

Objective:To investigate biomechanical effect of rupture of posterior cruciate ligament(PCL)on lateral meniscus and to provide biomechanical theorial base for the protection of lateral meniscus and the avoidance of osteoarthritis after PCL injury.