Comparison of the two surgery methods combined with accelerated rehabilitation in the treatment of lateral compression type 1 pelvic fractures in the elderly

Background Treating lateral compression type 1 (LC1) pelvic ring injuries in older patients is controversial. This study evaluated surgical treatments combined with ERAS for treating LC1 pelvic fractures in the elderly. Methods In this retrospective study, patients who underwent surgery with INFIX (supra-acetabular spinal pedicle screws, and a subcutaneous connecting rod; the experimental group) or superior pubic ramus cannulated screw (the control group) fixation of LC1 pelvic fracture from January 2019 to January 2022 were reviewed. Injury radiography and computed tomography were performed to determine the Young-Burgess classification. All patients performed standardized early rehabilitation exercises after surgery and were followed up for > 12 months. After surgery, the Matta score and the visual analog scale (VAS) were evaluated, and the postoperative weight-bearing time and the length of stay (LOS) were recorded. The Barthel index and the Majeed score were evaluated at 4 months after surgery and at the last follow-up. Results Fifty-three patients were included. Thirty-two patients included in the experimental group had a mean age of 75.0 +/- 6.2 (range, 66-86) years, and the other 21 patients in the control group had a mean age of 74.6 +/- 4.6 (range, 68-83) years. The mean follow-up time was 13.1 +/- 1.6 (range, 12-18) months in the experimental group and 13.4 +/- 1.3 (range, 12-16) months in the control group. There were no significant differences in follow-up time between the groups (P > 0.05). The mean VAS score, time to weight-bearing, and LOS were 2.0 +/- 0.7 (range, 1-3), 1.1 +/- 0.3 (range, 1-2) d, and 5.8 +/- 0.9 (range, 4-7) d in the experimental group and 2.3 +/- 1.2 (range, 1-5), 2.5 +/- 1.6 (range, 1-7) d, and 6.1 +/- 1.6 (range, 5-11) d in the control group, respectively. Between the two groups, there was a significant difference in the postoperative time to weight-bearing (P < 0.05), while there was no significant difference in the LOS (P > 0.05). No bedrest-related complications occurred in either group. The Matta score was 90.6% in the experimental group and 90.4% in the control group (P > 0.05). At the 4-months follow-up, the experimental group had a better Barthel index and Majeed score compared with the control group, which were 86.1 +/- 6.2 (range, 70-95) vs. 81.2 +/- 4.1 (range, 75-90) and 86.3 +/- 3.3 (range, 78-91) vs. 80.3 +/- 3.9 (range, 76-86), respectively. The experimental group had better early rehabilitation effect than the control group. There was no significant difference in Barthel index and Majeed score between the two groups at the last follow-up (P > 0.05). Conclusion Both INFIX and intramedullary superior pubic ramus cannulated screws can successfully treat LC1 pelvic fractures and reduce bed rest complications among older patients.