Effect of partial meniscectomy at the medial posterior horn on tibiofemoral contact mechanics and meniscal hoop strains in human knees
Effect of partial meniscectomy at the medial posterior horn on tibiofemoral contact mechanics and meniscal hoop strains in human knees
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DOI：
10.1002/jor.22010
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发表时间：
2012-06-01
影响因子：
2.8
通讯作者：
Duerselen, Lutz
中科院分区：
文献类型：
--
作者：
Seitz, Andreas Martin;Lubomierski, Anja;Duerselen, Lutz
我们检查了半月板部分切除术对10？在治疗内侧半月板后角桡骨撕裂时，在最大接触压力、接触面积（CA）和外侧和内侧膝关节间室的半月板环应变时，对10个人体尸体膝关节进行mm宽度的测量。在0度和30度屈曲角的情况下，20%和50%半月板部分切除术不影响最大接触压力和面积。仅在膝关节屈曲60度的情况下，50%部分切除增加了内侧最大接触压力，减少了内侧CA，具有统计学意义。然而，100%部分切除在所有测试的膝关节位中，半月板切除的膝关节内侧腔室的最大接触压力和CA显著降低。半月板环应变无显著差异。从生物力学的角度来看，我们的体外研究表明，内侧关节室在半月板深度为20%和10？毫米宽。接触力学可能对高屈曲角度的半月板部分切除术更敏感，这需要进一步研究。(c) 2011年骨科研究会。Wiley期刊公司出版。[J]中华口腔外科杂志，2012
We examined the influence of partial meniscectomy of 10?mm width on 10 human cadaveric knee joints, as it is performed during the treatment of radial tears in the posterior horn of the medial meniscus, on maximum contact pressure, contact area (CA), and meniscal hoop strain in the lateral and medial knee compartments. In case of 0 degrees and 30 degrees flexion angle, 20% and 50% partial meniscectomy did not influence maximum contact pressure and area. Only in case of 60 degrees knee flexion, 50% partial resection increased medial maximum contact pressure and decreased the medial CA statistically significant. However, 100% partial resection increased maximum contact pressure and decreased CA significantly in the meniscectomized medial knee compartment in all tested knee positions. No significant differences were noted for meniscal hoop strain. From a biomechanical point of view, our in vitro study suggests that the medial joint compartment is not in danger of accelerated cartilage degeneration up to a resection limit of 20% meniscal depth and 10?mm width. Contact mechanics are likely to be more sensitive to partial meniscectomy at higher flexion angles, which has to be further investigated. (c) 2011 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:934942, 2012