Objective: To evaluate the effectiveness of TiRobot-assisted surgery by O-arm navigation system for percutaneous minimally invasive treatment of posterior pelvic ring injury.
Methods: The clinical data of 76 patients with posterior pelvic ring injury between January 2016 and June 2021 were retrospectively analyzed. Among them, 45 cases were treated with minimally invasive percutaneous sacroiliac screw fixation assisted by TiRobot and O-arm navigation system (study group), 31 cases were treated with minimally invasive percutaneous sacroiliac screw fixation under the guidance of C-arm X-ray machine (control group). There was no significant difference in gender, age, cause of injury, Tile classification, time from injury to operation between the two groups ( P>0.05). The operation time, intraoperative blood loss, the times of nail track adjustment, and intraoperative fluoroscopy times were recorded. The quality of fracture reduction was evaluated by Matta score. At last follow-up, Majeed score was used to evaluate the recovery of pelvic function.
Results: A total of 72 screws were implanted in the study group, with a median of 1 (1, 2) screws per patient. In the control group, 47 screws were implanted, with a median of 1 (1, 2) screws per patient. There was no significant difference in the number of screws between the two groups ( Z=-0.392, P=0.695). The operation time, intraoperative blood loss, times of nail track adjustment, and intraoperative fluoroscopy times in the study group were significantly less than those in the control group ( P<0.05). All patients were followed up 6-24 months (mean, 14 months). No serious complications was found after operation and during follow-up. Matta score was used to evaluate the quality of fracture reduction at 1 week after operation, and there was no significant difference between the two groups ( Z=-1.135, P=0.256). At last follow-up, there was no significant difference of Majeed score between the two groups ( Z=-1.279, P=0.201).
Conclusion: TiRobot-assisted surgery by O-arm navigation system is a reliable surgical method for the treatment of posterior pelvic ring injury, which can reduce the operation time and fluoroscopy times when compared with the traditional operation under the guidance of C-arm X-ray machine. The safety, accuracy, and efficiency of the operation were improved.
目的: 评价天玑骨科机器人联合O臂导航系统辅助经皮微创治疗骨盆后环损伤的疗效。.
方法: 回顾分析2016年1月—2021年6月收治的76例骨盆后环损伤患者临床资料，其中45例采用天玑骨科机器人联合O臂导航系统辅助经皮微创骶髂螺钉内固定术治疗（研究组），31例仅在C臂X线机引导下行经皮微创骶髂螺钉内固定术治疗（对照组）。两组患者性别、年龄、致伤原因、骨折Tile分型、受伤至手术时间等一般资料比较差异均无统计学意义（ P>0.05）。记录两组患者手术时间、术中出血量、钉道调整次数和术中透视次数，采用Matta评分评价骨折复位质量；末次随访时采用Majeed评分评估患者骨盆功能恢复情况。.
结果: 研究组共植入螺钉72枚，每例患者植入螺钉1（1，2）枚；对照组共植入螺钉47枚，每例患者植入螺钉1（1，2）枚；两组每例患者植入螺钉数比较差异无统计学意义（ Z=−0.392， P=0.695）。研究组手术时间、术中出血量、钉道调整次数和术中透视次数均显著少于对照组（ P<0.05）。所有患者均获随访，随访时间6～24个月，平均14个月。术后和随访过程中均未见严重并发症。术后1周采用Matta评分评价骨折复位质量，两组差异无统计学意义（ Z=−1.135， P=0.256）。末次随访时采用Majeed评分评价骨盆功能，两组差异无统计学意义（ Z=−1.279， P=0.201）。.
结论: 天玑骨科机器人联合O臂导航系统辅助治疗骨盆后环损伤是一种可靠的手术方式，与C臂X线机引导下的传统手术方式相比减少了手术时间和透视次数，提高了手术安全性、准确性和手术效率。.
Keywords: O-arm navigation system; TiRobot; minimally treatment; posterior pelvic ring injury; sacroiliac screw.