Treatment of thoracolumbar vertebrae fractures with vertebral pedicle screw system and artificial bones filled with autosolidification calcium phosphate cement

Objective To study the effect of vertebral pedicle screw system and artificial bones filled with autosolidification calcium phosphate cement(ACPC) on thoracolumbar vertebrae fractures. Methods A total of 18 patients with thoracolumbar vertebrae fractures and with operative indications were treated with vertebral pedicle screw system and artificial bones filled with ACPC. Results Except 2 patients with the spinal cord function for Grade A, all the patients had the average improvement of Degree I to Degree Ⅲ on the aspect of spinal cord function. The kyphotic angle recovered averagely for 21°, the anterior height of the injured vertebral body was averagely restored to 98% of the normal, and the bone fragments that invaded into the spinal canal were obviously restored. During the following-up, loose or breakage of the internal fixation was not found, and there was no chronic lumbar back pain or loss of the normal spine curve and the spinal height of the injured vertebra. Conclusions With correct selection of operative indications and careful operations, the method with vertebral pedicle screw system and artificial bones filled with ACPC to treat thoracolumbar vertebrae fractures is an effective and safe method.