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Augmented reality-aided unicompartmental knee arthroplasty
Journal of Experimental Orthopaedics Pub Date : 2022-09-05 , DOI: 10.1186/s40634-022-00525-4
Sachiyuki Tsukada 1 , Hiroyuki Ogawa 1 , Kenji Kurosaka 1 , Masayoshi Saito 1 , Masahiro Nishino 1 , Naoyuki Hirasawa 1
Affiliation  

To illustrate a surgical technique for augmented reality (AR)-assisted unicompartmental knee arthroplasty (UKA) and report preliminary data. We developed an AR-based navigation system that enables the surgeon to see the tibial mechanical axis superimposed on the patient’s leg in addition to the tibial cutting angle. We measured the tibial resection angle in 11 UKAs using postoperative radiographs and calculated the absolute difference between preoperative target angle and postoperative measured angle. The target angle was determined for each patient: mean values were 0.7° ± 1.0° varus in coronal alignment and 5.3° ± 1.4° posterior slope in sagittal alignment. The angles measured on postoperative radiographs were 2.6° ± 1.2° varus in the coronal plane and 4.8° ± 2.5° posterior slope in the sagittal plane. The absolute differences between the target and measured angles were 1.9° ± 1.5° in coronal alignment and 2.6° ± 1.2° in sagittal alignment. No patients experienced complications, including surgical site infection and periprosthetic fracture. The AR-based portable navigation system may provide passable accuracy in terms of proximal tibial resection during UKA. IV

中文翻译:

增强现实辅助单髁膝关节置换术

说明增强现实 (AR) 辅助单髁膝关节置换术 (UKA) 的手术技术并报告初步数据。我们开发了一种基于 AR 的导航系统,使外科医生能够看到叠加在患者腿部上的胫骨机械轴以及胫骨切割角度。我们使用术后 X 光片测量了 11 个 UKA 的胫骨切除角度,并计算了术前目标角度与术后测量角度之间的绝对差。为每位患者确定目标角度:冠状对齐中的平均值为 0.7° ± 1.0° 内翻,矢状对齐中的后倾角为 5.3° ± 1.4°。术后 X 线片测量的角度为冠状面内翻 2.6° ± 1.2° 和矢状面内翻 4.8° ± 2.5°。目标和测量角度之间的绝对差异在冠状对齐中为 1.9°±1.5°,在矢状对齐中为 2.6°±1.2°。没有患者出现并发症,包括手术部位感染和假体周围骨折。基于 AR 的便携式导航系统可以在 UKA 期间在胫骨近端切除方面提供可及的准确性。四
更新日期:2022-09-06
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