Spine-shortening vertebral osteotomy for tethered cord syndrome: report of three cases.

STUDY DESIGN

Retrospective case series.

OBJECTIVE

To review findings from 3 patients who underwent spine-shortening vertebral osteotomy for tethered cord syndrome with a minimum follow-up of 3 years.

SUMMARY OF BACKGROUND DATA

Surgical detethering is the gold standard for symptomatic tethered cord syndrome. However, complications such as cerebrospinal fluid leakage and neurologic deterioration are common. Spine-shortening vertebral osteotomy, proposed by Kokubun, is an alternative surgical technique to reduce neural tension indirectly. However, case series of this novel procedure for tethered cord syndrome have not been reported in the English literature.

METHODS

Three patients aged 13, 22, and 27 years presented with progressive pain and/or neurologic dysfunction. They underwent spine-shortening vertebral osteotomy of L1 with a pedicle screw and rod system. Their clinical and radiologic outcomes are reviewed.

RESULTS

All patients got relief from their preoperative symptoms after surgery, and no complications occurred. Complete bone union was obtained in all patients without correction loss.

CONCLUSION

Spine-shortening vertebral osteotomy can be a safe and alternative surgical technique for tethered cord syndrome.