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INSTRUMENTED STABILISATION OF THORACOLUMBAR BURST FRACTURES WITH MINIMAL OR NO NEUROLOGIC DEFICIT



Abstract

INTRODUCTION: The optimal treatment for acute thoracolumbar burst fractures remains controversial, particularly in the patient with minimal or no neurologic deficit. While this group could be treated conservatively, at Burwood we prefer to utilise short segment instrumented stabilisation.

We wished to review the indications for surgical intervention and the outcomes in this group with emphasis on safety, rate of rehabilitation, function, and pain levels.

METHODS: The clinical notes and X-rays were reviewed for 34 consecutive patients with thoracolumbar burst fractures with minimal or no neurologic deficit, and treated by Dick fixator between August 1995 and September 2001. A questionnaire was mailed to all patients.

RESULTS: At presentation this group had a mean age of 30.7 years (range 16–59), mean kyphotic deformity (Cobb method) of 16.1°, decrease in vertebral body anterior height of 40.9%, and decrease in canal area of 41.2%. Operative fixation was successful in greatly improving both height and kyphosis. No major complication such as metalware breakage, thromboembolism, deep infection, or neurologic deterioration was encountered. Average operating time was 71 minutes, time to discharge was 8.4 days, except where an associated injury limited mobility (17.1 days).

Questionnaires were returned by 29 of 34 patients at a mean of three years post-injury. All of these had returned to work or usual level of activity at 14.3 weeks (4–36 weeks). Pain was experienced never or occasionally by 18 (62%), in relation to activity by 9 (31%), and on most days by 2 (7%). The average visual analog pain score was 2.1/10. No patient required regular or opioid analgesia.

DISCUSSION: This form of operative fixation appeared to benefit this group of patients by allowing rapid rehabilitation with early mobilisation, discharge, and return to work. Pain frequency and severity were both low at medium term follow-up and no major complication was encountered.

These abstracts were prepared by Dr Robert J. Moore. Correspondence should be addressed to him at Spine Society of Australia, Institute of Medical and Veterinary Science, The Adelaide Centre for Spinal Research, Frome Road, Adelaide, South Australia 5000.