Authors:  Dr Viral B Shah, Dr Praveen Saxena, Dr Hrutvij Bhatt, Dr Ritesh Patel

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Abstract                                                                                                                 

Introduction

There is an increased interest in stabilization of lumbar spine without fusion as an alternative to traditional fusion procedure for treatment of degenerative lumbar spine disease. In this study we analyse outcomes of pedicle-based dynamic stabilization.

Methods

Study of 96 patients operated from May 2009 to May 2013 with pedicle-based dynamic stabilization system with or without decompression for various indications. Clinical Outcome was evaluated with the VAS and Oswestry Disability Index (ODI) and Implant loosening radiologically.

Results

96 patients with heterogeneous indications were operated for Dynamic stabilisation from 2009 to 2013. Indications included Degenerative Disc Disease, Facetal Arthropathy, Grade I Degenerative Listhesis, Spinal Canal Stenosis and Degenerative Lumbar Scoliosis.

There were 163 stabilized segments in 96 patients and 936 pedicles instrumented. Mono-segmental stabilization was performed in 46 patients (48%), 35 patients (36%) underwent two segmental stabilizations, 13 patients (14%) underwent three segmental stabilizations and 2 patients underwent 4 levels (2% approx).  56 out patients underwent only dynamic stabilization whereas rest 44 underwent additional Micro decompression (40) and Endoscopic Discectomy (4) Average follow up was 26 months ranging from 12 months to 76 months. The VAS decreased from 7.4095±0.79689 to 1.6476±0.93892 (p<0.001), and the patients’ mean ODI score improved from 65.9286%±8.70770% to 12.8333%±6.73512% (p<0.001). No patients had implant failure. One patient had wound infection, two had aseptic skin necrosis. Two patients required unilateral removal of implants and one required complete removal of implants due to radicular pain postoperatively.

 Conclusion

Pedicle screw based dynamic posterior stabilization system is clinically effective and safe in patients suffering from various types of degenerative lumbar spine disease.

How to Cite this Abstract
Shah V. Clinical Outcomes of Posterior Dynamic Stabilization of Lumbar Spine: Experience in 96 patients with Degenerative Lumbar Disease International Journal of Conference Proceedings. March 2015;(2015):21.