Abstract
Introduction: Treatment of thoracolumbar fractures remains controversial. The treatment options are conservative management or operative treatment, either through a posterior or anterior approach. Surgery through an anterior approach provides excellent decompression through vertebrectomy and the ability to correct the deformity. Stabilisation with Moss cage and Kaneda device remains unproven.
Methods and Results: This is a retrospective study of 55 consecutive patients with thoracolumbar fractures operated on between 1993–99. Indications for surgery were: neurological deficit, two or three column injury causing instability or significant kyphotic deformity .
There were 34 male and 21 female patients, mean age 33 years old. Trauma was caused by a fall from a height, either due to accident (30 patients) or suicide attempt (5), RTAs (14), sporting injury (6). Other injuries included multiple level spinal fractures (9 patients), pelvic (5), calcaneal (3), talar (1) and malleolar (1) fractures.
Surgery was performed on the next available list unless there was an indication for emergency intervention, (mean 5 days post injury, range 1–19). Post-operative hospital stay averaged 17 days (7–59).
Forty-seven patients underwent an anterior procedure alone, whilst eight patients had combined anterior and posterior instrumentation and fusion. Mean operative time was 207 minutes (150–360) and blood loss 2670 ml (985– 7000).
Nineteen patients (35% of all) had neurological deficit. Neurological status improved post-op in 85% of these patients, remained the same in nine per cent and there was a nerve root injury in one patient (revision case) which has almost recovered. Other complications included five chest infections, three UTIs, one incisional hernia, four implant problems and eight patients with thigh pain.
Results were analysed according to return to work and the Oswestry Disability Score with a mean follow-up of three years. Thirty-eight patients (69%) returned to the same occupation held before the injury, 11 patients (20% ) had a lighter job and six patients ( 11% ) are not working with litigation going on. Oswestry Disability Score post-op was 24% (4%–72%).
Conclusion: Compared to the natural history of conservatively treated thoracolumbar fractures, surgical treatment with anterior decompression and stabilisation with Moss cage and Kaneda device offers considerable advantages. It enables a thorough decompression and has the advantage of providing greater deformity correction than the traditional posterior approach while instrumenting fewer vertebrae, thus preserving spinal motion segments. Early mobilization of the patients is a major advantage.
Abstracts prepared by Mr J. Dorgan. Correspondence should be addressed to him at the Royal Liverpool Children’s Hospital, Alder Hey, Eaton Road, Liverpool L12 2AP, UK
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