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  • Title: [Comparison of instrumented posterior fusion with instrumented circumferential lumbar fusion in the treatment of lumbar stenosis with low degree lumbar spondylolisthesis].
    Author: Fei Q, Wang YP, Xu HG, Qiu GX, Weng XS, Lin J, Tian Y, Yu B, Xu R.
    Journal: Zhonghua Wai Ke Za Zhi; 2005 Apr 15; 43(8):486-90. PubMed ID: 15938902.
    Abstract:
    OBJECTIVE: To compare and evaluate instrumented posterior fusion with instrumented circumferential lumbar fusion in the treatment of lumbar stenosis with low degree lumbar spondylolisthesis. METHODS: From April 1998 to April 2003, 45 patients who suffered from lumbar stenosis with low degree lumbar spondylolisthesis were divided into 2 groups (A and B) at random. The patients in group A (n = 24, average age 54 years old) were performed decompressive laminectomy, intertransverse process arthrodesis with bone grafting and transpedicle instrumentation of solid connection (SOCON) system. The patients in group B (n = 21, average age 53 years old) were performed the same procedure as group A except adding posterior lumbar interbody fusion (PROSPACE). The main levels of lumbar spondylolisthesis in 2 groups was L(4 - 5) or L(5)-S(1). All cases were classified as degree 1 to degree 2. All patients in the two groups received preoperative myelography or CTM, and were diagnosed lateral recess stenosis and(or) central lumbar canal stenosis. RESULTS: All the patients were followed up from 12 to 72 months. In group A, the results showed that the preoperative clinical symptoms disappeared completely in 12 of 24 patients, pain relief was seen in 91.7% (22/24), anatomical reduction rate was 91.7%. No infection or neurologic complication occurred in this series. In group B, the results showed that the preoperative clinical symptoms disappeared completely in 13 of 21 patients, pain relief was seen in 90.5% (19/21), anatomical reduction rate was 95.2%. Four cases of infection or neurologic complication occurred in this series. Two groups had no significant difference in follow-up clinical outcome and anatomical reduction rate. But group A had better intraoperative circumstances and postoperative outcome than group B, group B had better postoperative parameters in X-ray of angle of slipping and disc index than group A. CONCLUSIONS: The best surgical treatment method of lumbar stenosis with low degree lumbar spondylolisthesis is complete intraoperative decompressive laminectomy, reduction with excellent transpedicle system instrumentation and solid fusion after bone grafting. The use of cage should be conformed to strict indications.
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