Qi Wang1, Jun Liu1, Ying Shi1, Yu Chen1, Hailong Yu1, Junxiong Ma1, Weijian Ren1, Huifeng Yang1, Hongwei Wang1, Liangbi Xiang2. 1. Department of Orthopedics, The General Hospital of Shenyang Military Commanding Area, No 83, Wenhua Road, 110840, Shenyang, China. 2. Department of Orthopedics, The General Hospital of Shenyang Military Commanding Area, No 83, Wenhua Road, 110840, Shenyang, China. xiangliangbi1963@sina.com.
Abstract
PURPOSE: To determine the safety and short-term curative effects of internal fixation using a dynamic neutralization system (Dynesys) for multi-segmental lumbar disc herniation (ms-LDH) with the control group treated by posterior lumbar interbody fusion (PLIF). METHODS: Forty-five patients with ms-LDH were selected as study group treated with Dynesys and 40 patients as control group with PLIF. The surgical efficacy was evaluated by comparing the visual analogue scale (VAS) scores, the Oswestry Disability Index (ODI) scores and the ROMs of the adjacent segment before and after surgery. The postoperative complications related to the implants were identified. RESULTS: All patients were followed up for an average duration of over 30 months. Dynesys stabilization resulted in significantly higher preservation of motion at the index level (p < 0.001), and significantly less (p < 0.05) hypermobility at the adjacent segments. VAS for back and leg pain and ODI improved significantly (p < 0.05) with both the methods, but there was no significant difference between the groups. CONCLUSIONS: The non-fusion fixation system Dynesys is safe and effective regarding short-term curative effects for the treatment of ms-LDH.
PURPOSE: To determine the safety and short-term curative effects of internal fixation using a dynamic neutralization system (Dynesys) for multi-segmental lumbar disc herniation (ms-LDH) with the control group treated by posterior lumbar interbody fusion (PLIF). METHODS: Forty-five patients with ms-LDH were selected as study group treated with Dynesys and 40 patients as control group with PLIF. The surgical efficacy was evaluated by comparing the visual analogue scale (VAS) scores, the Oswestry Disability Index (ODI) scores and the ROMs of the adjacent segment before and after surgery. The postoperative complications related to the implants were identified. RESULTS: All patients were followed up for an average duration of over 30 months. Dynesys stabilization resulted in significantly higher preservation of motion at the index level (p < 0.001), and significantly less (p < 0.05) hypermobility at the adjacent segments. VAS for back and leg pain and ODI improved significantly (p < 0.05) with both the methods, but there was no significant difference between the groups. CONCLUSIONS: The non-fusion fixation system Dynesys is safe and effective regarding short-term curative effects for the treatment of ms-LDH.
Authors: Raphaël Vialle; C Court; N Khouri; E Olivier; L Miladi; J L Tassin; T Defives; J Dubousset Journal: Eur Spine J Date: 2004-11-19 Impact factor: 3.134
Authors: William C Welch; Boyle C Cheng; Tariq E Awad; Reginald Davis; James H Maxwell; Rick Delamarter; Jeffrey K Wingate; John Sherman; M Mason Macenski Journal: Neurosurg Focus Date: 2007-12-15 Impact factor: 4.047