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  • Title: [Surgical options and result analyses in adult degenerative lumbar scoliosis].
    Author: Sun ZM, Zhao D, Deng SC, Zhao HY.
    Journal: Zhonghua Yi Xue Za Zhi; 2009 May 05; 89(17):1166-70. PubMed ID: 19595079.
    Abstract:
    OBJECTIVE: To investigate the clinical and radiographic outcomes for varying degrees of degenerative lumbar scoliosis using different surgical options with a minimal 5-year follow-up. METHODS: From May 1998 to November 2002, 31 patients with degenerative lumbar scoliosis underwent operations at our hospital. The mean age of 19 females and 12 males was 55.8 years old (range: 45 to 71). All patients were divided into 4 groups: Group A, mild coronal deformity with obvious sagittal deformity, 13 cases; Group B, obvious coronal deformity with mild sagittal deformity; Group C, both significant coronal and sagittal deformities; Group D, both mild coronal and sagittal deformities. Posterior decompression, internal fixation and bone graft fusion were performed in Groups A, B and C. And posterior decompression was performed in Group D. All patients were followed up for at least 5 years. Patients answered the Oswestry low back pain disability questionnaire at pre-operation, and 1 year, 5 year post-operation. RESULTS: Thirty patients were followed up for the whole process. According to Cobb's angle methods, there was great post-operative improvement for patients with internal fixation (Groups A, B, C) while there was no significant difference for patients with posterior decompression at pre-and post-operation. After surgery, the average Oswestry Disability Index score in the patients with internal fixation (Groups A, B, C) was significantly lower than the preoperative score (25.8 vs 58.0; P < 0.001). However there was statistical difference for patients with internal fixation between 1 year and 5 year postoperatively. No perioperative death or major medical complications occurred. Ten patients had adjacent segment degeneration. CONCLUSIONS: The surgical aim for adults with a spinal deformity is to achieve a stable, balanced and pain-free spine. Surgical treatments should consist of decompression and fusion with segmental instrumentation to avoid instability and curb progression. Despite the complexity of adult lumbar degenerative scoliosis, it might improve the quality of life for patients by choosing an appropriate operation option on the basis of varying degrees of lumbar deformity.
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