ZHONGHUA YANGSHENG BAOJIAN ›› 2023, Vol. 41 ›› Issue (2): 4-8.

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Clinical Study of Internal Fixation of Pelvic Fractures with Cannulated Screws Assisted by 3D Printing Guides

YIN Chun-yun1, ZHANG Yi-wen2, LIU Zhi-ze3,*   

  1. 1. Department of Orthopedics, People's Hospital of Golmud, Haixi Qinghai 816099, China;
    2. Operating Room, People's Hospital of Golmud, Haixi Qinghai 816099, China;
    3. Department of Trauma and Tissue Repair, Dalian Central Hospital, Dalian Liaoning 116000, China
  • Online:2023-01-16 Published:2023-01-12

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Abstract: Objective Exploring and analyzing the clinical study of 3D printing guide plate-assisted internal fixation with cannulated screws in the treatment of pelvic fractures. Methods Used prospective research methods, From May 2019 to May 2022, 71 cases of patients with pelvic fractures who were diagnosed and treated in the Golmud People's Hospital were selected as the research objects, and the patients were divided into 35 cases in the 3D printing group and the cannulated screw group of 36 cases accorded to the random number table method. The cannulated screw group was given cannulated screw internal fixation treatment, and the 3D printing group was given 3D printing guide plate adjuvant therapy based on the treatment of the cannulated screw group, and the changes of imaging parameters of the two groups were observed. Results There was no significant difference in incision length, operation time and intraoperative fluoroscopy times compared between the two groups (P>; 0.05). The intraoperative blood loss and fracture healing time of the 3D printing group were significantly shorter than those of the cannulated screw group (P>; 0.05). In the 3D printing group, the incidence of complications such as pin tract infection, sacral nerve injury, venous thrombosis, and incision infection at 3 months after surgery was lower than cannulated screw group(P<; 0.05). The pelvic incident angle and pelvic inclination angle were significantly lower in both groups at 3 months after surgery than at 1 day before surgery (P<; 0.05), and the 3D printing group was also significantly lower than that in the cannulated screw group (P<; 0.05). The excellent and good rate of pelvic Majeed score 3 months after 3D printing group was significantly higher than cannulated screw group (P<; 0.05). Conclusion Internal fixation of pelvic fractures with cannulated screws assisted by 3D printing guide plate can reduce the trauma to patients, promote fracture healing, reduce the occurrence of complications, and also improve the imaging parameters of patients and improve the pelvic function of patients.

Key words: 3D printing, cannulated screw, pelvic fracture, imaging parameters, complications

CLC Number: