Clinical application of computer assisted technology for hip arthroscopic surgery

2020 Fiscal Year Final Research Report

• Project/Area Number: 18K09073
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 56020:Orthopedics-related
• Research Institution: Yokohama City University
• Principal Investigator: Kobayashi Naomi 横浜市立大学, 附属市民総合医療センター, 准教授 (20453045)
• Co-Investigator(Kenkyū-buntansha): 稲葉 裕 横浜市立大学, 医学研究科, 教授 (40336574)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Keywords: 大腿骨寛骨臼インピンジメント / 股関節鏡視下手術 / コンピュータ支援手術 / ナビゲーション手術

Outline of Final Research Achievements

Precise osteochondroplasty is the most important factor in hip arthroscopic surgery for cam-type femoroacetabular impingement (FAI). Although computer-assisted surgery, particularly with a navigation system, may improve the accuracy of arthroscopic osteochondroplasty, few clinical studies have assessed its accuracy. The purpose of this study was to evaluate the accuracy of arthroscopic osteochondroplasty with a computed tomography (CT)-based navigation system for cam-type FAI, especially its effect on the deviation of the actual resection from preoperative planning.
Navigation-assisted arthroscopic osteochondoroplasty showed generally favorable overall accuracy. Under-resection was more frequent than over-resection on the anterior-superior side of the femur, even with the assistance of the navigation system.

Free Research Field

整形外科学

Academic Significance and Societal Importance of the Research Achievements

本研究は世界で初めて、FAIに対するコンピュータナビゲーション支援股関節鏡手術の正確性について詳細に３次元的解析を用いて精度検証を行なった研究である。前向き研究であり洗練された計測手法を用いた信頼性の高い結果を提供したものと考える。今後のコンピュータナビゲーション支援股関節鏡手術の臨床応用に向けてインパクトの高い研究である。