Measurement of varus-valgus and internal-external rotational knee laxities in vivo - Part II: Relationship with anterior-posterior and general joint laxity in males and females
Measurement of varus-valgus and internal-external rotational knee laxities in vivo - Part II: Relationship with anterior-posterior and general joint laxity in males and females
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DOI：
10.1002/jor.20398
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发表时间：
2007-08-01
影响因子：
2.8
通讯作者：
Perrin, David H.
中科院分区：
文献类型：
--
作者：
Shultz, Sandra J.;Shimokochi, Yohei;Perrin, David H.
我们检查了一般关节松弛（GJL）、前后移位（ANT-POST）、内翻-外翻旋转（VR-VL）和内外旋转（INT-EXT）膝关节松弛的性别差异，并确定更大的ANT和GJL是否预示着更大的VR-VL和INT-EXT。对20名受试者进行GJL测量，并按0-9的量表评分。使用标准膝关节测量仪在133 N下测量ANT和POST。使用定制关节松弛测试装置测量VR-VL和INT-EXT，定义为分别由0-10 Nm内翻-外翻扭矩和0-5 Nm内外扭矩产生的胫骨相对于股骨的角位移（deg）。在非负重（NWB）和负重（WB=40%体重）条件下测量INT-EXT，而在NWB测量VR-VL。除POST外，雌性动物的所有松弛度测量值均大于雄性动物。ANT和GJL对VR-VL和WB INT-EXT的正预测率分别为62.5%和41.8%。ANT是NWB中INT-EXT的唯一预测因子，解释42.3%的方差。这些结果表明，GJL和ANT临床指标评分较高的受试者也可能具有更大的VR-VL和TNT-EXT膝关节松弛。(C)2007骨科研究学会。出版社：Wiley Periodicals，Inc.
We examined sex differences in general joint laxity (GJL), and anterior-posterior displacement (ANT-POST), varus-valgus rotation (VR-VL), and internal-external rotation (INT-EXT) knee laxities, and determined whether greater ANT and GJL predicted greater VR-VL and INT-EXT. Twenty subjects were measured for GJL, and scored on a scale of 0-9. ANT and POST were measured using a standard knee arthrometer at 133 N. VR-VL and INT-EXT were measured using a custom joint laxity testing device, defined as the angular displacements (deg) of the tibia relative to the femur produced by 0-10 Nm of varus-valgus torques, and 0-5 Nm of internal-external torques, respectively. INT-EXT were measured during both non-weight-bearing (NWB) and weight-bearing (WB=40% body weight) conditions while VR-VL were measured NWB. All laxity measures were greater for females compared to males except for POST. ANT and GJL positively predicted 62.5% of the variance in VR-VL and 41.8% of the variance in WB INT-EXT. ANT was the sole predictor of INT-EXT in NWB, explaining 42.3% of the variance. These findings suggest that subjects who score higher on clinical measures of GJL and ANT are also likely to have greater VR-VL and TNT-EXT knee laxities. (C) 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.