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- Title
Clinical application of intraoperative O-arm navigation in reverse shoulder arthroplasty.
- Authors
Sasaki, Yu; Ochiai, Nobuyasu; Kotani, Toshiaki; Kenmoku, Tomonori; Hashimoto, Eiko; Kishida, Shunji; Sakuma, Tsuyoshi; Muramatsu, Yuta; Ueno, Keisuke; Nakayama, Keita; Iijima, Yasushi; Minami, Shohei; Ohtori, Seiji
- Abstract
<bold>Background: </bold>Inaccurate fixation and positioning of the glenoid component using conventional techniques are problematic in reversed shoulder arthroplasty (RSA). Our objective was to investigate the accuracy of O-arm navigation of the glenoid component in RSA.<bold>Methods: </bold>This retrospective case-control study comprised 2 groups of 25 patients who underwent reversed shoulder arthroplasty with or without intraoperative O-arm navigation. The intraoperative goal was to place the component neutrally in the glenoid in the axial plane and 10° inferiorly tilted in the scapular plane. Glenoid version angle and inclination were measured by computed tomography obtained preoperatively and a year postoperatively. Operative time, intraoperative bleeding, and the presence of postoperative complications were recorded.<bold>Results: </bold>Compared with the ideal, the range of error for version was 7.3° (SD 3.6°) in the control group and 5.6° (SD 3.6°) in the navigated group (P = 0.278), and the range of error for inclination was 18.3° (SD 11.7°) in the control group and 4.9° (SD 3.8°) in the navigated group (P = 0.0004). The mean operative time was 164.6 (SD 21.2) min in the control group and 192.0 (SD 16.2) min in the navigated group (P = 0.001). The mean intraoperative bleeding was 201.0 (SD 37.0) mL in the control group and 185.3 (SD 35.6) mL in the navigated group (P = 0.300). There were no complications reported related to the intraoperative O-arm navigation.<bold>Conclusion: </bold>O-arm navigation may be a useful tool for the placement with inferior tilt of the glenoid procedure in reversed shoulder arthroplasty.
- Subjects
REVERSE total shoulder replacement; SHOULDER; SURGICAL complications; COMPUTED tomography; ARTHROPLASTY
- Publication
Journal of Orthopaedic Science, 2020, Vol 25, Issue 5, p836
- ISSN
0949-2658
- Publication type
journal article
- DOI
10.1016/j.jos.2019.11.003