改良间隙技术后稳定全膝关节置换术中后下垂控制装置对胫骨后移位的影响。

IF 1.3 4区 医学 Q3 ORTHOPEDICS
Akira Maeyama, Isao Asayama, Tetsuro Ishimatsu, Takuaki Yamamoto
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引用次数: 0

摘要

目的:在现代全膝关节置换术(TKA)中,股骨和胫骨之间的屈伸间隙在植入最终假体之前得到平衡。术中不受控制的胫骨后平移(PTT)可能导致屈曲间隙的人为扩大,这可能导致外科医生改变股骨假体的大小。我们设计了一种术中后下垂控制装置来预防术中PTT。在这项研究中,我们调查了使用该装置是否可以防止屈曲间隙的人为扩大。方法:前瞻性研究纳入25例患者,其中女性21例,男性4例,年龄74.2岁。所有患者均采用导航系统进行后稳定TKA。在导航系统下测量术中PTT、有或没有使用后下垂控制装置的屈伸间隙。这些测量结果在使用或不使用后下垂控制装置以及最终植入后也进行了比较。结果:与植入后的测量结果相比,使用或不使用后下垂控制装置的测量结果有显著差异。该装置的使用使屈曲间隙增加> 3mm的患者数量从7例(28%)减少到1例(4%)。结论:后下垂控制装置可防止PTT和人工屈曲间隙扩大。这可以防止组件尺寸不必要的增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of the posterior sagging control device to the posterior tibial translation during posterior-stabilized total knee arthroplasty with modified gap technique.

Purpose: In modern total knee arthroplasty (TKA), flexion and extension gaps between the femur and tibia are equilibrated before implanting the final components. Uncontrolled intraoperative posterior tibial translation (PTT) could cause an artifactual widening of the flexion gap, which could lead surgeons to alter the femoral component size. We designed an intraoperative posterior sagging control device to prevent intraoperative PTT. In this study, we investigated whether the use of this device could prevent artifactual widening of the flexion gap.

Methods: Twenty-five patients, 21 women and four men, aged 74.2 years, were enrolled in this prospective study. All patients underwent postero-stabilized TKA using a navigation system. Intraoperative PTT, flexion and extension gaps with or without using the posterior sagging control device were measured with navigation system. These measurements were compared with or without the posterior sagging control device and after the final implantation also.

Results: There were significant differences between the measurements performed with or without the posterior sagging control device when compared to the post-implantation measurements. The use of the device reduced the number of patients with a >3 mm increase in flexion gap from 7 (28%) to 1 (4%).

Conclusion: This study suggests that the posterior sagging control device prevents PTT and artificial flexion gap widening. This could prevent an unnecessary increase in component size.

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来源期刊
Journal of Orthopaedic Surgery
Journal of Orthopaedic Surgery ORTHOPEDICS-SURGERY
CiteScore
3.10
自引率
0.00%
发文量
91
审稿时长
13 weeks
期刊介绍: Journal of Orthopaedic Surgery is an open access peer-reviewed journal publishing original reviews and research articles on all aspects of orthopaedic surgery. It is the official journal of the Asia Pacific Orthopaedic Association. The journal welcomes and will publish materials of a diverse nature, from basic science research to clinical trials and surgical techniques. The journal encourages contributions from all parts of the world, but special emphasis is given to research of particular relevance to the Asia Pacific region.
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