Intraoperative landmarking errors and their avoidance in robotic-assisted total knee arthroplasty using the VELYS system

IF 3.2 Q2 ORTHOPEDICS

Journal of Experimental Orthopaedics Pub Date : 2026-09-07 DOI:10.1002/jeo2.70902

Alexander Aichmair, Heiko Graichen, Nimrod Snir, Benjamin V. Bloch, Ugonna N. Ihekweazu, Jochen G. Hofstaetter, Michael T. Hirschmann, Pieter-Jan Vandekerckhove

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引用次数: 0

Abstract

While robotic-assisted total knee arthroplasty (rTKA) has been proven to achieve highly precise and reproducible radiographic results, its accuracy remains highly dependent on correct intraoperative landmark acquisition. This technical guide aims to provide practical guidance for intraoperative recognition of landmarking and gap balance assessment errors during rTKA using the image-free VELYS^TM system. Based on the authors' clinical experience with this system, the most common pitfalls as well as their intraoperative recognition are highlighted. Special focus is set on pin placement, bone reference checkpoints and landmark acquisition, with practical intraoperative cues that allow surgeons to detect these errors intraoperatively before bone resections are performed. The present article should support early adopters of the VELYS^TM system, with the aim of preventing precision inaccuracies.

Level of Evidence

Level V.

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使用VELYS系统的机器人辅助全膝关节置换术中标记错误及其避免。

虽然机器人辅助全膝关节置换术（rTKA）已被证明可以获得高度精确和可重复的放射学结果，但其准确性仍然高度依赖于正确的术中地标获取。本技术指南旨在为rTKA术中使用无图像VELYSTM系统识别标记和间隙平衡评估错误提供实用指导。根据作者使用该系统的临床经验，强调了最常见的陷阱及其术中识别。特别关注针的放置，骨参考检查点和地标的获取，以及实用的术中提示，允许外科医生在进行骨切除术之前术中发现这些错误。本文应支持VELYSTM系统的早期采用者，目的是防止精度不准确。证据等级：V级。

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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