Fracture/dislocation is uncommonly reported in ankylosing spondylitis involving the lumbosacral spine.We report an 18-month follow-up of a case of neurologically unstable traumatic fracture of the lumbosacral spine in ankylosing spondylitis.Posterior decompression, alar-transverse fusion and instrumentation were performed. Anterior diskectomy and fusion were done 6 weeks later. There was solid bony fusion on follow-up and the patient had improvement of 2 Frankel grades and was able to ambulate.Combined approaches and longer fixations to stabilise the spine may be required. In the lumbosacral spine, this poses a problem vis-à-vis limited levels of fixation in the sacrum.

作者：H T, Hee；J, Thambiah；A, Nather；H K, Wong

来源：Annals of the Academy of Medicine, Singapore 2002 年 31卷 1期