The purpose of this study is to analyze the surgical results of 11 patients who underwent posterior instrumentation and anterior interbody fusion using titanium mesh vertebral ring(MOSS) in osteoporotic vertebral fracture.

From May 1997 to July 1999, we checked plain radiographs every 3 months and evaluated the change of kyphotic angle, fusion rate, change of clinical, neurologic symptoms and complications of these patients.

There were only average 0.2 degree correction of preoperative kyphotic angle at last follow-up X-ray. However, we confirmed successful bony fusion at nine of eleven patients(82%) and ten of eleven patients(90.9%) got satisfactory clinical results. Four patients with neurologic symptoms have recovered from their original neurologic status. Only one patient reoperated her back because of displacement of surgical device used in previous operation.

Among the surgical treatment methods in osteoporotic vertebral fractures, posterior instrumentation and anterior interbody fusion using titanium mesh vertebral ring(MOSS) is recommended as one of the effective surgical methods in severe osteoporotic patients.