[Patient-specific instrumentation in total knee arthroplasty - current concepts and clinical implications].

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Orthopadie (Heidelberg, Germany) Pub Date : 2025-07-22 DOI:10.1007/s00132-025-04689-6

Ricarda Stauss, Peter Savov, Hendrik Pott, Max Ettinger

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Abstract

Background: In total knee arthroplasty (TKA), there is a trend towards personalized concepts, and the implementation of innovative technologies is crucial for the precise execution of modern alignment strategies.

Patient-specific instrumentation: Patient-specific instrumentation (PSI) enables a detailed preoperative analysis of the patient's bony anatomy, and optimal component placement is determined in the virtual implant planning stage. PSI-guided execution of the surgical plan enables an improved precision and reproducibility of the surgical results. Despite the use of 3D-printed cutting guide instruments in standard TKA cases, PSI is increasingly being used in surgically complex cases that require an individualized surgical plan.

Current situation of studies: With the increasing utilization of modern technologies in TKA and the expansion of the indications for PSI-TKA to complex cases, a thorough understanding of the potential benefits and limitations of this technology is crucial to determine the cases that will benefit most from the procedure. Therefore, the purpose of this article is to provide an overview on the current evidence and clinical implications of PSI-guided TKA.

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全膝关节置换术中患者特异性内固定-当前概念和临床意义。

背景：在全膝关节置换术（TKA）中，有一种个性化概念的趋势，创新技术的实施对于精确执行现代对齐策略至关重要。患者特异性内固定：患者特异性内固定（PSI）可以在术前对患者的骨骼解剖进行详细的分析，并在虚拟种植计划阶段确定最佳的组件放置位置。psi引导的手术计划的执行可以提高手术结果的精度和可重复性。尽管在标准TKA病例中使用了3d打印切割导向器械，但PSI越来越多地用于需要个性化手术计划的复杂手术病例。研究现状：随着现代技术在TKA中的应用越来越多，PSI-TKA的适应症扩展到复杂病例，彻底了解该技术的潜在益处和局限性对于确定从该手术中获益最多的病例至关重要。因此，本文的目的是概述psi引导的TKA的现有证据和临床意义。

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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Orthopadie (Heidelberg, Germany)

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