Partial sacrectomy by single posterior approach.

Introduction Tumors of the sacrum correspond to less than 7% of spinal tumors. The side prevail by multiple myeloma or prostate, breast, lung and colon carcinomas. Of the primary, the chordoma is the most frequent malignant and giant cell tumor of the benign. For its evolution, commitment of extra bone structures and insufficient response to the collaboration, surgery is the most commonly used treatment, the path of approach and the need for instrumentation depends on tumor to treat. Objectives The objectives of this work are: the use of partial resection of sacrum, analyze the surgical technique to assess complications. Material and methods Four patients with diagnosis of sacral tumor located below S1, which ask for pain and that the images confirm the injury. Is everyone an en bloc resection by posterior via preserving S1. Describes the technique. Results The pathological was: a chordoma, a malignant nerve sheath tumor, a chondrosarcoma and a metastasis of prostatic carcinoma. Be preserved S1 function in all patients; one has permanent bladder dysfunction. Observed a wound dehiscence, infection and fistula of cerebrospinal fluid. With between 6 and 24 months follow-up all patients are free of disease. Conclusions Partial resection of the unique approach via posterior sacrum may be indicated when the injury commit from S2 distally and uncompromising sacroiliac. Estate preservation is vital to guarantee best results post operative and lower rate of infection