Efficacy of pelvic unlocking reduction device in assisting closed reduction and internal fixation for the treatment of AO/OTA 61-C3 type pelvic fractures
10.3760/cma.j.cn121113-20250306-00229
- VernacularTitle:骨盆解锁复位装置辅助闭合复位内固定治疗AO/OTA 61-C3型骨盆骨折
- Author:
Jie HE
1
;
Hua CHEN
;
Wenhao CAO
;
Guangping LIU
;
Peifu TANG
Author Information
1. 解放军医学院，北京 100853
- Publication Type:Journal Article
- Keywords:
Pelvis;
Fracture, bone;
Closed fracture reduction;
Fracture fixation, internal
- From:
Chinese Journal of Orthopaedics
2025;45(19):1227-1233
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the clinical efficacy of the pelvic unlocking reduction device in assisting closed reduction and internal fixation for the treatment of AO/OTA 61-C3 type pelvic fractures.Methods:A retrospective analysis was conducted on 27 patients with AO/OTA 61-C3 pelvic fractures treated with the pelvic unlocking reduction device-assisted reduction and internal fixation between January 2020 and January 2024 in Fourth Medical Center of the People's Liberation Army General Hospital. The cohort included 11 males and 16 females, with a mean age of 30.2±13.9 years (range, 13-55 years). The time from injury to surgery was 16.0 (10.0, 28.0) d (range, 6-175 d). According to the AO/OTA classification, there were 8 cases of type 61-C3.1, 10 cases of type C3.2, and 9 cases of type C3.3. Among them, 10 patients presented with associated lumbosacral nerve injuries, classified as Gibbons grade II in 5 cases, grade III in 1 case, and grade IV in 4 cases. All patients underwent closed reduction and internal fixation assisted by the pelvic unlocking reduction device. Postoperative outcomes were assessed using the visual analogue scale (VAS) for pain, the Majeed pelvic score, and the Harris hip score. Fracture reduction quality was evaluated using the Matta criteria, and overall health status was assessed using the 36-Item Short Form Health Survey (SF-36).Results:All patients successfully underwent the surgery and were followed up for 31.6±12.3 months (range, 12-48 months). The fracture reduction time was 33.45±12.18 min, the total operative time was 283.0±87.9 min, the number of fluoroscopies was 71.33±32.77, and the intraoperative blood loss was 314.1±252.6 ml. At the 12-month postoperative assessment, VAS score was 1.78±0.85, Majeed pelvic score was 87.52±15.03; SF-36 score was 88.93±11.27; and Harris Hip Score was 90.59±11.43. All patients achieved an "excellent" rating according to the Matta radiographic assessment criteria at 12 months postoperatively. Fracture union was confirmed in all cases, with a healing time of 2.9±0.4 months (range, 2.5-3.5 months). No postoperative complications such as shock, nonunion, delayed union, surgical site infection, implant loosening, or deep vein thrombosis were observed. Three patients experienced numbness in the lateral thigh region postoperatively, which was attributed to lateral femoral cutaneous nerve injury. The symptoms resolved completely following removal of the INFIX internal fixator.Conclusion:The pelvic unlocking reduction device-assisted closed reduction and internal fixation demonstrates safety and efficacy in treating AO/OTA 61-C3 type pelvic fractures, yielding satisfactory fracture union and early functional scores.
