Partial anterior sacrectomy with nerve preservation to treat locally advanced rectal cancer

Abstract

Most studies that have reported outcomes after composite abdomino-sacral resection for locally advanced/recurrent rectal cancer have involved resections below the S2/3 disc space. Involvement of the sacrum above this level is uncommon and, until recently, was considered a contraindication to resection. We report here a surgical technique to deal with high sacral involvement with an anterior approach and maintenance of sacropelvic stability. The operative findings confirmed a locally perforated rectal cancer with an associated abscess cavity and direct invasion into S2. Given the likelihood that a complete dislocation of the sacrum would cause significant neurological damage and pelvic instability without oncological benefit, we opted for a partial high anterior sacrectomy with nerve preservation. The patient made an uncomplicated recovery without neurological deficit and was able to walk with the aid of crutches from postoperative day 3. While a high sacral transection is appropriate for some patients with locally advanced/recurrent rectal cancer, operative decisions and options should be tailored to each individual.