相关实验视频

Updated: Jan 14, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Published on: January 24, 2018

靠近的解剖轴显示出双向的变化:准确的部斜率需要机械轴测量

Barbara C Boer¹, Quinten W T Veerman^1,2, Reinoud W Brouwer³

¹OCON Centre for Orthopaedic Surgery and Sports Medicine, Hengelo, the Netherlands.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA

|October 22, 2025

概括

在膝盖X射线图上使用近接解剖轴测量后骨斜率 (PTS) 并不是测量到下腿X射线图上的机械骨轴 (mTA) 的PTS可靠的代理. 建议在减斜骨切除术前进行全长下腿放射,以准确测量PTS.

科学领域:

整形外科手术整形外科手术
放射学放射学是一门学科.
生物力学生物力学

背景情况:

后带斜率 (PTS) 是膝盖生物力学和手术规划中的一个关键参数,特别是在前交叉带 (ACL) 重建结果和骨切割时.
精确测量PTS对于指导手术决策至关重要,例如减斜骨切除术.
测量PTS的传统方法通常依赖于不同的小腿骨轴,从而导致潜在的变化.

研究的目的:

评估使用标准膝关节X射线测量近腰骨解剖轴的PTS是否可以可靠地替代全腿X射线测量到机械骨轴 (mTA) 的PTS.
评估不同近道轴 (PTAA,ATC,PTC) 的一致性和诊断准确性,作为基于mTA的PTS测量的代理.

主要方法:

对59个膝盖进行了回顾性分析,这些膝盖是18岁以上的,ACL重建失败的患者.
中间和侧面PTS相对于mTA (在侧面下腿X射线图上) 和近腰的解剖轴 (PTAA),前腰皮层轴 (ATC) 和后腰皮层轴 (PTC) (在侧面膝盖X射线图上) 进行了测量.
使用相关系数,测量误差和布兰德-阿尔特曼分析评估了协议;确定了基于PTAA的骨折切断线的诊断准确性.

主要成果:

在近距离解剖轴和基于mTA的PTS测量之间观察到强烈的相关性 (r ≥ 0.71),但一致性很差.
与mTA相比,PTAA,ATC和PTC发现了大量的测量错误和广泛的一致性限制.
与基于mTA的测量相比,使用常规的≥12° PTAA基切线用于降低斜率的骨切除术错误分类了大约三分之一的膝盖.

结论:

在日常膝关节X射线检查中,基于近距离解剖轴的PTS测量显示出显著的双向测量误差,与基于mTA的测量相比,在临床上可接受的限度之外.
这些解剖轴测量不是基于mTA的PTS测量的可靠代理,特别是在指导手术决策时,如减斜骨切除术.
在考虑减斜骨切除术时,建议使用单次暴露,全长侧侧下腿放射图进行基于mTA的准确PTS测量.

关键词:

解剖学轴是一个解剖学轴.机械轴机械轴机械轴后面的部斜坡后部部斜坡放射学测量是一种放射学测量.骨轴骨轴的位置

更多相关视频

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

Published on: July 2, 2021

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

相关概念视频

Beams with Unsymmetric Loadings

Beams with Unsymmetric Loadings

Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...

Bones of the Lower Limb: Tibia and Fibula

Bones of the Lower Limb: Tibia and Fibula

The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...