[Large resection of the sacroiliac joint. Technique, reconstruction, anatomical and functional results]

The surgical treatment of tumors close to the sacro-iliac joint is made uneasy due to the thinness of the posterior skin cover and the proximity of anterior vascular and nerve elements. A complete, pre-operative appreciation of the extent of the lesion is necessary. 12 patients were operated on and reviewed after a 34 months average follow-up. Complications were frequent, particularly on the cutaneous and neurological standpoint. The surgical technique varied according to a greater extension of the lesion toward the iliac or sacral bone. Extension to the acetabulum was particularly distressing. The functional results depended on extent of muscular resection nerve resections, volume of resected bone. However the surgical treatment is the only one possible in some tumors non-sensible to conservative treatments.