国产通用型脊柱内固定系统置入治疗腰椎滑脱55例随访(英文)

Domestic vertebral internal fixation system for treating lumbar spondylolisthesis in 55 cases: A follow-up study

回顾性分析2002-01/2007-12海南省人民医院骨病外科收治的腰椎滑脱患者64例,男19例,女45例。年龄26～73岁病程1～15年。所有患者均有反复腰痛伴下肢放射痛、间歇性跛行(50～300m)。腰椎椎弓峡部裂并滑脱59例,其中L3Ⅰ度滑脱3例;L4Ⅰ度滑脱31例,Ⅱ度滑脱13例;L5Ⅰ度滑脱9例,Ⅱ度滑脱3例。腰椎退行性变L4假性滑脱5例。全部患者均采用保留棘突的全椎板切除减压或椎管开窗减压、国产通用型脊柱内固定系统置入固定、复位、椎间植骨融合。本组55例获得随访,失访9例。随访时间平均3.1年,按Steffee临床疗效分级标准进行疗效评估,优28例,良19例,优良率85.5%。置入后1周内摄X射线平片复查,28例获完全复位,36例部分复位,椎体间植骨融合率为100%。表明国产通用型脊柱内固定系统结构简单,操作方便,固定坚固,能使滑脱的椎体复位,明显提高脊柱植骨融合率。

A total of 64 patients with lumbar spondylolisthesis were enrolled from Department of Bone Surgery in the People＇s Hospital of Haian Province between January 2002 and December 2007, including 19 males and 45 females. They aged 26-73 years with a mean of 48.5 years. Their disease course was 1-15 years with a mean of 4 years. All patients complained about the repeated low back pain accompanied with lower limb radiating pain and intermittent claudication （50 300 m）. Fifty-nine patients suffered from lumbar spondylolysis, including L3 Ⅰ degree in 3 cases, L4 Ⅰ degree in 31 cases, L4 Ⅱdegree in 13 cases, L5 Ⅰ degree in 9 cases and L5 Ⅱ degree in 3 cases. The remaining 5 cases were present with lumbar degenerative L4 pseudo-spondylolysis. All patients were processed into whole laminectomy for decompression or vertebral canal decompression by fenestration, domestic vertebral internal fixation, reduction and interbody fusion. Fifty-five patients were followed up for an average of 3.1 years whereas 9 patients were lost. According to Steffee clinical effect grading, the curative effect was evaluated as excellent in 28 cases and good in 19 cases, the rate of excellence and good accounted for 85.5%. Within one week following bone graft, all patients were rechecked with X-ray plain film, 28 of them had shown complete reduction and 36 cases were present with part reduction. The fusion rate of interbody graft was 100%. These findings demonstrated that vertebral internal fixation system possesses a simple structure, convenient operation and solid fixation, resets the slipped vertebral body and significantly increases the fusion rate of vertebral graft.