Outcomes of Percutaneous Stabilization for Pelvic Metastatic Bone Disease: A Systematic Review and Meta-Analysis

Metastatic bone disease (MBD) of the pelvis is commonly managed with open reconstruction despite substantial morbidity and high complication rates ranging from 16-32%. Percutaneous fixation techniques have emerged as a lower morbidity alternative; however, robust evaluations of outcomes remain limited. Therefore, the primary aim of this systematic review was to evaluate changes in pain and function following percutaneous fixation for pelvic MBD, and to determine the complication and reoperation rates of these procedures.

A systematic review and meta-analysis was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. MEDLINE, Embase, Scopus, and Cochrane Library databases were searched from inception through 15 May 2025. Studies evaluating percutaneous fixation for pelvic MBD in adults were included. Pooled estimates of visual analog scale (VAS) pain scores, Eastern Cooperative Oncology Group (ECOG) performance status scores, complication rates, and reoperation rates were generated using meta-analysis techniques.

Twenty-five studies were included in the final analysis. VAS pain scores were reported in 15 studies, with an average decrease of 5.0 points (95% CI: 3.9-6.1) from pre- to postoperative. ECOG performance status scores were reported in 8 studies, with an average improvement of 1.1 points (95% CI: 0.7-1.5) from pre- to postoperative. Complications were reported in 24 studies, with a pooled complication rate of 8% (95% CI: 6-12%) and reoperation rate of 4% (95% CI: 2-7%).

Percutaneous fixation for pelvic MBD provides meaningful improvements in pain and function with relatively low complication rates. However, substantial study heterogeneity exists in the patient population, surgical techniques, and implant selection, reflecting the novelty of this treatment strategy and the absence of standardized guidelines.