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| LI Qingchu,HU Huilin,YANG Yuan.Treatment of degenerative lumbar spine stenosis by modified unilateral approach for bilateral decompression under microendoscope[J].Chinese Journal of Spine and Spinal Cord,2010,20(1):. |
| Treatment of degenerative lumbar spine stenosis by modified unilateral approach for bilateral decompression under microendoscope |
| Received:July 27, 2009 Revised:September 16, 2009 |
| English Keywords:Lumbar vertebrae Spine stenosis Microendoscope Modified channel |
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| English Abstract: |
| 【Abstract】 Objective：To evaluate the feasibility and clinical efficacy of the treatment of lumbar spine stenosis by modified unilateral approach for bilateral decompression under microendoscope.Method：217 cases with degenerative lumbar spine stenosis from September 2003 to December 2008 were treated by modified unilateral approach for bilateral decompression of central spinal canal and nerve root canal under microendoscope.Among them laminectomy of one segment was done in 163 cases，two segments were done in 54 cases.After surgery，the routine radiograph were carried out and the Nakai criterion was used for assessment.Result：The mean operative time was 48±13min（range，25 to 95min），the average blood loss was 37±9ml（range，25 to 180ml），the average skin incision length was 2.2±0.2cm（1.8 to 2.4cm）.2 cases had dural matter tearing，which healed after filling with gelatin foam and 2 weeks bed rest，after that no cerebrospinal fluid leakage was noted after surgery.Mislocation was noted in 1 case.No nerve inury and postoperative infection occurred.Postoperative CT scan demonstrated complete decompression of the central spinal canal and nerve root canal.All patients were followed-up for an average of 14 months（range，3 months to 24 months）.The Nakai criterion at final follow-up showed clinical excellent in 134 cases，good in 63 cases，fair in 16 cases and worse in 4 cases，with the excellent and good rate of 90.8%.No lumbar spine instability was noted.Conclusion：Treatment of degenerative lumbar spine stenosis by modified unilateral approach for bilateral decompression under microendoscope has the merit of minimal invasive，less complications and reliable therapeutical effect. |
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