Surgical treatment of fragility fractures of the pelvis: short-term outcomes of 42 patients.

ABSTRACT

PURPOSE: The present retrospective study aimed to analyze patient characteristics, perioperative complications, and short-term outcomes of surgery for fragility fractures of the pelvis (FFP). METHODS: We selected 42 patients who underwent surgery for FFP between October 2019 and October 2022 and could be followed for more than 6 months postoperatively, including one male patient and 41 female patients with an average age of 83.5 (65-96) years. The following demographic data were collected Rommens classification, surgical method, reoperation rate, implant loosening, perioperative complications, interventional radiology (IVR) indication rate, perioperative blood transfusion indication rate, Parker Mobility Score (PMS) before surgery and at final follow-up, and numerical rating scale (NRS) score before surgery and on day 3 postoperatively. RESULTS: Rommens classification was as follows type IIa (n = 2), type IIb (n = 13), type IIIa (n = 8), type IIIc (n = 3), type IVb (n = 13), and type IVc (n = 3). For surgical procedure, 35 patients (83.3%) were successfully stabilized with percutaneous screw fixation alone, and 7 patients further required open plate fixation. Implant loosening was observed in 16 patients (38.1%), including minor cases, and implant removal was required in 1 patient. Minor perforation of the screw was observed as an intraoperative complication in 6 patients; there were no patients with neurological symptoms. At the time of injury, IVR was indicated in 3 patients (7.1%) because of hemorrhage. Thirty patients (71.4%) had medical complications at the time of admission. One patient died due to postoperative pneumonia. Mean PMS before injury and at final follow-up were 6.51 points and 5.38 points, respectively. Mean NRS scores before surgery and on day 3 postoperatively were 5.26 and 3.49, respectively, showing a significant improvement (p < 0.01). CONCLUSION: We retrospectively reviewed 42 patients who required surgery for FFP. More than 80% of cases could be treated with percutaneous screw fixation, but it is always important to consider hemorrhagic shock at the time of injury and indications for IVR. Implant loosening was observed in 38.1% of patients, including minor cases, and was considered an issue to be improved on in the future, such as by using cement augmentation. A significant improvement in mean NRS score on day 3 postoperatively relative to the mean preoperative score was observed, suggesting that surgery may contribute to early mobilization.