A single-institution, retrospective cohort study. To compare the accuracy and short-term clinical outcomes of pedicle screw placement between robot-assisted (RA) and freehand (FH) technique in the treatment of adult degenerative scoliosis (ADS). From February 2018 to October 2019, 97 adult patients with degenerative scoliosis admitted to our department were retrospectively reviewed. Thirty-one patients received robot-assisted pedicle screw placement (RA group), and 66 patients underwent freehand pedicle screw placement (FH group). Patient demographics and short-term clinical outcomes were recorded and compared between two groups. Gertzbein-Robbins grading system was adopted to evaluate the accuracy of pedicle screw placement by means of postoperative CT scan. Short-term clinical outcomes consist of operative time, intraoperative blood loss, length of hospital stay (LOS), radiological parameters, Scoliosis Research Society-22 (SRS-22) scores before the operation, 6 months after operation, adverse events, and revisions. The accuracy of screw placement was higher than that of the FH group (clinically acceptable 98.7% vs. 92.2%; P< 0.001). Intraoperative blood loss of the RA group was less than those in the FH group (499 vs. 573 ml; P < 0.001). Operative time (283.1 vs. 291.9 min; P = 0.31) and length of stay (12.8 vs. 13.7 days; P = 0.36) were compared between RA and FH groups. In terms of radiological parameters, both of groups were improved postoperatively. The SRS-22 scores at 6 months after operation from both groups were better than those before operation. For surgery-related complication, one case had pressure sores in the RA group while two cases developed dural tears in the FH group. No revision was required in both groups. Combined with other surgical correction modalities, robot-assisted pedicle screw fixation is an effective and safe method of treating degenerative scoliosis. Due to its satisfactory surgical outcomes such as higher accuracy and less trauma, it provides a good alternative for clinical practice. 3.

中文翻译：

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机器人辅助骨科手术治疗成人退行性脊柱侧弯：初步临床报告。

单机构回顾性队列研究。比较机器人辅助（RA）和徒手（FH）技术在成人退行性脊柱侧凸（ADS）治疗中椎弓根螺钉放置的准确性和近期临床效果。自2018年2月至2019年10月，对我科收治的97例退行性脊柱侧弯成年患者进行回顾性检查。31例患者接受了机器人辅助的椎弓根螺钉置入术（RA组），而66例患者接受了徒手椎弓根螺钉置入术（FH组）。记录两组患者的人口统计资料和短期临床结果，并进行比较。采用Gertzbein-Robbins分级系统通过术后CT扫描评估椎弓根螺钉放置的准确性。短期临床结果包括手术时间，术中失血，住院时间（LOS），放射学参数，脊柱侧弯研究学会22（SRS-22）评分在术前，术后6个月，不良事件和修订。螺钉放置的准确性高于FH组（临床可接受的98.7％和92.2％； P <0.001）。RA组的术中出血量少于FH组（499 vs. 573 ml； P <0.001）。比较RA组和FH组的手术时间（283.1 vs. 291.9分钟； P = 0.31）和住院时间（12.8 vs. 13.7天； P = 0.36）。就放射学参数而言，两组术后均得到改善。两组患者术后6个月的SRS-22评分均优于术前。对于手术相关的并发症，RA组1例有压疮，而FH组2例出现硬膜撕裂。两组均不需要修订。结合其他外科矫正方法，机器人辅助的椎弓根螺钉固定术是治疗退行性脊柱侧弯的一种有效且安全的方法。由于其令人满意的手术效果，例如更高的准确性和更少的创伤，它为临床实践提供了很好的选择。3。