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CORRECTION OF POST-TRAUMATIC KYPHOSIS USING A THREE-STAGE APPROACH



Abstract

Introduction: To evaluate a three-stage procedure for the correction of symptomatic post-traumatic kyphotic deformity of the thoracic or lumbar spine.

Methods: Over an 18-month period, five consecutive cases of post-traumatic kyphosis of the thoracic/lumbar spine were analysed. Indications for surgical correction were incapacitating back pain, progression of kyphotic deformity, persistent neurologic deficit and development of late spinal stenosis. All patients underwent a three-staged procedure using two surgeons. At first they were positioned prone for a posterior midline approach, with pedicle screw placement (USS), decompressive laminectomies and facetectomies. For the second stage, the patients were positioned either on left side (for upper thoracic spine) or on the right side (for the thora-columbar junction and lumbar spine). An open, minimal invasive access procedure using the SynFrame retractor was performed. The anterior column was reconstructed using expandable cages (Synex cages) with autologous bone for interbody fusion. Finally, the patient was again positioned prone for posterior compression, instrumentation and fusion.

Results: The five patients comprised four males and one female. Age range was 26–51 years. Level of injury was T7–L3. Time since injury was two to10 years. Mean operating time was eight hours. One patient required a thoracic pedicle screw revision and another a posterior deep wound infection requiring wound debridement and lavage. Follow-up period was three to 15 months. All patients reported improvement in pain post-operatively. Lower rates of pain improvement correlated with longer standing symptomatic injuries. No worsening of neurological deficit occurred.

Conclusion: Early correction of symptomatic kyphosis is recommended and aims to improve pain, deformity and function. Recognition of the correct type of injuries is essential to avoid late deformity. Correction of symptomatic post-traumatic kyphotic deformity is achieved by this three-staged approach. Minimal invasive anterior reconstruction using SynFrame and expandable Synex cages is safe and effective. Two surgeons working in conjunction is advantageous.

These abstracts were prepared by Editorial Secretary, George Sikorski. Correspondence should be addressed to Australian Orthopaedic Association, Ground Floor, The William Bland Centre, 229 Macquarie Street, Sydney, NSW 2000, Australia.

One or more of the authors are receiving or have received material benefits or support from a commercial source.