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Updated: Jul 18, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

Published on: August 4, 2022

Clinical values in computer-assisted total knee arthroplasty.

Tomoyuki Matsumoto¹, Nobuhiro Tsumura, Masahiro Kurosaka

¹Dept of Orthopedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.

|December 28, 2006

Summary

Computed tomography-free navigation improved total knee replacement accuracy compared to manual techniques. Early clinical outcomes were similar, but long-term benefits require further study.

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Area of Science:

Orthopedic Surgery
Medical Technology
Biomechanical Engineering

Background:

Total knee replacement (TKR) is a common procedure for knee osteoarthritis.
Accurate implant alignment is crucial for optimal TKR outcomes.
Traditional TKR relies on surgeon-controlled techniques, which can have variable accuracy.

Purpose of the Study:

To compare the accuracy of CT-free navigation in TKR with classical surgical techniques.
To evaluate early clinical outcomes of TKR using CT-free navigation.

Main Methods:

A prospective study comparing 30 posterior stabilized TKRs implanted with CT-free navigation to 30 matched TKRs implanted manually.
Assessment of implantation accuracy relative to the mechanical axis.
Evaluation of early clinical results, including range of motion and Knee Society Clinical Rating Score.

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Last Updated: Jul 18, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

Published on: August 4, 2022

Main Results:

CT-free navigation demonstrated superior accuracy in aligning implants with the mechanical axis compared to the manual technique.
Early two-year clinical results, including range of motion and Knee Society scores, were comparable between the navigation and manual groups.

Conclusions:

CT-free navigation offers improved accuracy for total knee replacement surgery.
While early clinical results are promising, further investigation is needed to determine long-term functional benefits and outcomes.