Riberi Giacomo, Cangelosi Antonio, Titolo Paolo, Dutto Elisa, Salvi Massimo, Molinari Filippo, Ulrich Luca, Agus Marco, Calì Corrado
Department of Orthopedic and Traumatology II-Hand Surgery Unit, CTO Hospital, Città della Salute e della Scienza, Torino, Italy.
Department of Neuroscience "Rita Levi Montalcini," Università degli Studi di Torino, Italy.
Mayo Clin Proc Digit Health. 2025 Apr 16;3(2):100221. doi: 10.1016/j.mcpdig.2025.100221. eCollection 2025 Jun.
OBJECTIVE: To compare augmented reality (AR) and classical intraoperative C-arm surgical navigation and evaluate whether head-mounted display improves surgical accuracy in the placement of a rod-like object, such as K-wire, using an anatomically accurate elbow phantom. PARTICIPANTS AND METHODS: Data were collected between January 10, 2024, and March 15, 2024. We developed an AR system, X-ray simulation system and surgical phantom to test K-wire placement in 3 locations of the distal humerus and proximal ulnar bones. An initial phase with only X-ray as guidance was performed as case control; in later phases, the candidates were allowed to also use the head-mounted display. The evaluation parameters were time, placement angle, number of X-ray images taken, number of attempts, and distance from anatomical structures. RESULTS: In total, 19 physicians participated in the study. We analyzed 193 K-wire placements attempts that resulted in 150 estimated correct positions. This reflects a real-world scenario where multiple placements might be attempted to correctly place a K-wire. Compared with standard procedure, the use of AR resulted in -53.8 seconds in K-wire placement time, -47% of angular error from the K-wire target, -80% X-ray images taken to reach the estimate correct position, and decrease in distance variability of -81%, of the K-wire from anatomical structures of interest. CONCLUSIONS: Compared with C-arm, AR navigation improved time, and angle of placement, requiring less X-ray images.
目的:使用解剖学精确的肘部模型,比较增强现实(AR)和传统术中C型臂手术导航,并评估头戴式显示器是否能提高棒状物体(如克氏针)放置的手术准确性。 参与者与方法:于2024年1月10日至2024年3月15日收集数据。我们开发了一个AR系统、X射线模拟系统和手术模型,以测试克氏针在肱骨远端和尺骨近端三个位置的放置情况。以仅使用X射线作为引导的初始阶段作为病例对照;在后续阶段,参与者也可使用头戴式显示器。评估参数包括时间、放置角度、拍摄的X射线图像数量、尝试次数以及与解剖结构的距离。 结果:共有19名医生参与了该研究。我们分析了193次克氏针放置尝试,其中150次位置估计正确。这反映了现实世界中为正确放置克氏针可能需要多次尝试的情况。与标准程序相比,使用AR使克氏针放置时间缩短了53.8秒,克氏针与目标角度的误差降低了47%,达到估计正确位置所需的X射线图像数量减少了80%,克氏针与感兴趣解剖结构的距离变异性降低了81%。 结论:与C型臂相比,AR导航改善了放置时间和角度,且所需的X射线图像更少。
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