Clinical efficacy of robot-assisted percutaneous channel screw fixation in the treatment of pel-vic fractures under 3D navigation
Objective To investigate the clinical efficacy of robot-assisted percutaneous placement of pel-vic channel screws under 3D navigation in the treatment of unstable pelvic fractures.Methods From Feb.to Oct.2023,the Department of Orthopedics at the First Affiliated Hospital of Chongqing Medical University managed 9 pa-tients with unstable pelvic fractures using the 3D navigation-assisted robotic technology for percutaneous placement of pelvic channel screws.Among them,there were 4 males and 5 females aged 16-73(mean 41.6)years,with 4 road traffic injuries,4 falls from height,and 1 crushing injury.According to Tile classification for pelvic fractures,4 cases were of type B2.2 and 5 of type B3.2.The surgical duration,intraoperative blood loss,and intraoperative and postop-erative complications were recorded.The quality of fracture reduction and postoperative pelvic function recovery were also assessed.Results A total of 20 channel screws were implanted for this case series,2.2 per patient.The time for placement planning was 22-30(mean 25.8)min.The screw implantation time was 2-3(mean 2.6)min.The op-eration time was 32-46(mean 37.2)min.No case required guidewire adjustment,with each guidewire inserted under 3-7(mean 5.5)times of fluoroscopy.The intraoperative blood loss was 5-10(mean 8.9)mL.No postoperative complication such as vascular or nerve injury was recorded.According to the Matta fracture reduction criteria,the po-sition of the pelvic channel screws implanted in this study was all rated as excellent.Conclusion 3D navigation for robot-assisted percutaneous placement of pelvic channel screws offers high efficiency and accuracy for unstable pel-vic fractures.The surgical procedure is fine and minimally invasive,with short exposure time to X-rays and few post-operative complications.This technology has potential advantages in the treatment of pelvic ring injuries.
Pelvic fracturesPelvic ring injuriesUnstable fracturesRobot assisted surgery3D navigation
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