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| YAN Yiguo,WANG Wenjun,OUYANG Zhihua.Percutaneous pedicle screws combined with Quadrant system for lumbar degenerative disease[J].Chinese Journal of Spine and Spinal Cord,2013,(3):204-208. |
| Percutaneous pedicle screws combined with Quadrant system for lumbar degenerative disease |
| Received:June 25, 2012 Revised:February 07, 2013 |
| English Keywords:Quadrant system Lumbar disk herniation Percutaneous pedicle screw fixation |
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| English Abstract: |
| 【Abstract】 Objectives: To evaluate the clinical application of percutaneous pedicle screws combined with Quadrant system for lumbar degenerative disease. Methods: 92 patients with lumbar disc herniation were treated in our hospital from Feburary 2010 to Feburary 2012. They were divided into two groups randomly, 46 patients underwent percutaneous pedicle screws combined with Quadrant system (MIS group), the others experienced posterior lumbar interbody fusion(PLIF)(conventional group). The operation time, length of incision, blood loss, excellent to good rate at final follow-up were evaluated by modified MacNab criteria, and the VAS score of low back pain and complications before operation, 6 months and 1 year after operation between two groups were recorded and compared. Results: All patients were followed up for 4-24 months(average, 16 months). In the MIS group, 1 cases suffered from delayed incision healing, and 1 case suffered from CSF leak. The operation time of MIS group and conventional group was 100.0±21.7min and 91.0±18.1min, and the excellent-to-good rate was 89.2％ and 86.9％ respectively, which showed no significant difference(P＞0.05). Preoperative VAS score for low back pain of 2 groups was 6.0±3.3 and 6.3±2.5 respectively, 2.5±1.3 and 2.6±1.4 at 6 months and 1.4±1.1 and 1.3±1.1 at 1 year after operation respectively, which improved significantly compared with the preoperatives(P＜0.05). Compared with the conventional group, the MIS group had shorter length of incision and less blood loss(P＜0.05). In the MIS group, 24 cases obtained bony fusion at 3 month follow-up, 18 cases obtained bony fusion at 6 month follow-up, 4 cases obtained bony fusion at 1 year follow-up. While in the conventional group, it was 25, 18 and 3 cases obtained bony fusion at corresponding follow-ups respectively. Conclusions: Percutaneous pedicle screws combined with Quadrant system is safe and effective for lumbar degenerative disease, which has less skin incision and blood loss compared with conventional treatment. |
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