Bone cement filling combined with lumbo-iliac screw internal fixation in the treatment of benign sacroiliac joint tumours.

Background: To investigate the method of reconstruction of the sacroiliac joint in patients who underwent benign tumour curettage and analyse the effect of internal fixation with lumbo-iliac screws and connecting rod insertion after filling the defect with bone cement.

Methods: Twenty-four patients with benign sacroiliac joint tumours underwent curettage and filling of the defect with bone cement, followed by lumbo-iliac screw and connecting rod insertion. The visual analogue scale (VAS) was used to assess pain, and the Musculoskeletal Tumour Society (MSTS) score was used to assess hip function.

Results: All patients were followed-up for 24-96 months (average, 42.2 months). The postoperative VAS score was significantly lower than the preoperative score (p < 0.05), while the postoperative MSTS score was significantly higher than the preoperative score (p < 0.05). One patient had delayed healing of the surgical incision; no complications occurred in the remaining patients.

Conclusion: For benign sacroiliac joint tumours, the combination of filling of defects with bone cement and internal lumbo-iliac fixation can relieve pain quickly, and achieve good limb function.