期刊
JOURNAL OF ORTHOPAEDIC RESEARCH
卷 24, 期 5, 页码 1001-1010出版社
WILEY
DOI: 10.1002/jor.20037
关键词
knee joint; meniscectomy; articular cartilage; finite element method; arthrosis
类别
Total meniscectomies are commonly thought to cause progressive degenerative arthrosis pathology in articular cartilage in a period of a few years because of alteration of the biomechanical environment including increased joint instability. This concern has lead to a preference for partial meniseectomies, although lateral partial meniscectomies sometimes lead to catastrophic results. We performed a three-dimensional finite element model of the human tibiofemoral joint to examine the effect of lateral meniscectomy on knee biomechanics. The results were compared to those from modeling a medial meniscectomy. Under axial femoral compressive loads, the peak contact stress and maximum shear stress in the articular cartilage increased 200% more after a lateral than a medial meniscectomy. These increased stresses could partly explain the higher cartilage degeneration observed after a lateral meniscectomy. (c) 2006 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.
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