The comparison of three dimensional and two dimensional evaluation of varus/valgus stress X-rays following total knee arthroplasty.

IF 2.8 3区医学 Q1 ORTHOPEDICS

Journal of Orthopaedic Surgery and Research Pub Date : 2025-03-29 DOI:10.1186/s13018-025-05741-z

Hiroki Hijikata, Tomoharu Mochizuki, Keisuku Maeda, Osamu Tanifuji, Go Omori, Noriaki Yamamoto, Hiroyuki Kawashima

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引用次数: 0

Abstract

Purpose: The purpose of this study was to compare three-dimensional (3D) and two-dimensional (2D) evaluation of the stress X-rays following total knee arthroplasty (TKA).

Methods: This prospective study analyzed 51 consecutive rTKAs (four males and 44 females, both aged 74 ± 6 years). Postoperative varus/valgus stress X-rays were taken at maximum manual varus/valgus stress during knee extension under anesthesia, and were analyzed three-dimensionally using a 3D-2D image matching technique with 3D bone and component models. The 3D models of the femur and tibia, along with component-bone constructs, were reconstructed from CT data using 3D modeling software. The 2D evaluation of varus/valgus stress X-rays were carried out directly on the stress X-rays. The varus/valgus angle (VV angle) between components, Medial joint opening (MJO) and lateral joint opening (LJO) were assessed under conditions of no stress, valgus stress, and varus stress.

Results: The VV angles under no stress, valgus stress, and varus stress in 3D and 2D evaluation were 3.6 ± 1.1 / 3.6 ± 1.1°, -0.6 ± 1.6 / -0.6 ± 1.6°, 7.1 ± 1.9 / 6.8 ± 2.5°, respectively. The MJO in the non-stress condition and under valgus stress in 3D and 2D evaluation were 0.0 ± 0.5 / -1.8 ± 0.8 mm,1.4 ± 1.0 / -0.2 ± 1.4 mm, and the LJO in the non-stress condition and under varus stress in 3D and 2D evaluation were 0.9 ± 1.0 / -0.6 ± 1.0 mm, 3.5 ± 1.9 / 2.1 ± 1.9 mm, respectively.

Conclusions: This prospective study revealed that the 3D evaluation of varus/valgus stress X-rays following total knee arthroplasty is equivalent to 2D evaluation in VV angles, whereas different from 2Devaluation in MJO and LJO.

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全膝关节置换术后内翻/外翻应力x线三维和二维评价的比较。

目的：本研究的目的是比较全膝关节置换术（TKA）后应力x线片的三维（3D）和二维（2D）评估。方法：本前瞻性研究分析了51例连续rtka患者（男性4例，女性44例，年龄均为74±6岁）。术后内翻/外翻应力x线片在麻醉下膝关节伸展时以最大手动内翻/外翻应力拍摄，并使用3D- 2d图像匹配技术与3D骨和部件模型进行三维分析。利用三维建模软件从CT数据重建股骨和胫骨的三维模型以及构件骨结构。内翻/外翻应力x射线的二维评价直接在应力x射线上进行。在无应力、外翻应力和内翻应力条件下，评估各组件之间的内翻角（VV角）、内侧关节开口（MJO）和外侧关节开口（LJO）。结果：三维和二维评估无应力、外翻应力和内翻应力下的VV角分别为3.6±1.1 / 3.6±1.1°、-0.6±1.6 / -0.6±1.6°、7.1±1.9 / 6.8±2.5°。三维和二维评价中，无应力状态和外翻应力状态下的MJO分别为0.0±0.5 / -1.8±0.8 mm、1.4±1.0 / -0.2±1.4 mm；三维和二维评价中，无应力状态和内翻应力状态下的LJO分别为0.9±1.0 / -0.6±1.0 mm、3.5±1.9 / 2.1±1.9 mm。结论：本前瞻性研究显示，全膝关节置换术后内翻/外翻应力x线的三维评估与VV角度的二维评估相当，而与MJO和LJO的2Devaluation不同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Orthopaedic Surgery and Research ORTHOPEDICS-

CiteScore

4.10

自引率

7.70%

发文量

494

审稿时长

>12 weeks

期刊介绍： Journal of Orthopaedic Surgery and Research is an open access journal that encompasses all aspects of clinical and basic research studies related to musculoskeletal issues. Orthopaedic research is conducted at clinical and basic science levels. With the advancement of new technologies and the increasing expectation and demand from doctors and patients, we are witnessing an enormous growth in clinical orthopaedic research, particularly in the fields of traumatology, spinal surgery, joint replacement, sports medicine, musculoskeletal tumour management, hand microsurgery, foot and ankle surgery, paediatric orthopaedic, and orthopaedic rehabilitation. The involvement of basic science ranges from molecular, cellular, structural and functional perspectives to tissue engineering, gait analysis, automation and robotic surgery. Implant and biomaterial designs are new disciplines that complement clinical applications. JOSR encourages the publication of multidisciplinary research with collaboration amongst clinicians and scientists from different disciplines, which will be the trend in the coming decades.