Continuous clinical observation of the Dynesys dynamic neutralization system for degenerative lumbar spine diseases
10.3760/cma.j.issn.0253-2352.2013.01.004
- VernacularTitle:Dynesys动态稳定系统治疗下腰椎疾病效果观察
- Author:
Xianzhe LIU
;
Weihua XU
;
Shunan YE
;
Yong FENG
;
Bo ZHANG
;
Shuhua YANG
- Publication Type:Journal Article
- Keywords:
Lumbar vertebrae;
Internal fixators;
Treatment outcome
- From:
Chinese Journal of Orthopaedics
2013;(1):20-25
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical indications and outcomes of dynesys neutralization system in the treatment of degenerative lumbar diseases.Methods From January 2007 to December 2011,102 consecutive patients with degenerative lumbar spine diseases underwent posterior decompression and internal fixation with the Dynesys dynamic neutralization system.Among them,69 patients were followed up,including 39 males and 30 females,aged from 30 to 62 years (average,44 years).The series of cases were composed of 24 cases of lumber disc herniation,35 cases of degenerative spinal stenosis,10 cases of degenerative changes of lumbar discs.Results The mean follow-up period was 35 months (range,6-44 months).The visual analogue scale (VAS) score decreased from preoperative 8.6 (range,6-9) to postoperative 2.8 (range,0-5),and the Oswestry disability index (ODI) improved from preoperative 73％ (range,30％-91％) to postoperative 30％ (range,0-61％).There were no implant failure or infection.According to the evaluation criteria of surgical treatment for low back pain,which was established by the Chinese Orthopaedic Association,the result was excellent in 53 patients,good in 12 patients,fair in 4 patients and poor in 1 patient.Conclusion The Dynesys dynamic neutralization system is effective in the treatment of degenerative lumbar spine disease,which can reserve the range of motion of stabilized segments,prevent degeneration of adjacent segments and improve clinical outcomes.
