Decompression surgery for lumbar spinal stenosis is a common procedure. After surgery, segmental instability sometimes occurs, therefore, different methods for restabilization have been developed. Dynamic stabilization systems have been designed to improve segmental stability. In this study, clinical results of patients with lumbar spinal stenosis that underwent decompression and stabilization with the Accuflex dynamic system are presented; clinical, radiographic, and magnetic resonance imaging (MRI) findings are fully described. Improvements in all clinical measurements, including visual analog scale for back and leg pain, Oswestry disability index, and SF-36 health status survey were noticed. At a 2-year follow-up, 22.22% of patients required hardware removal due to fatigue while in 83% of them no progression of disk degeneration was observed after implantation of the Accuflex system. Additionally, as demonstrated by the MRI images at follow up, three patients (16%) showed disk rehydration with one grade higher on the Pfirmann classification. Although a relatively high hardware failure was observed (22.22%), the use of the dynamic stabilization system Accuflex posterior to decompression procedures, showed clinical benefits and stopped the degenerative process in 83% the patients
Keywords : Back,classification,Decompression,Surgical,diagnostic imaging,Follow-Up Studies,Health Status,Humans,instrumentation,Intervertebral Disc Degeneration,Leg,Lumbar Vertebrae,Magnetic Resonance Imaging,methods,Pain,Patients,Prospective Studies,Radiography,Spinal Fusion,Spinal Stenosis,Spine,surgery,Treatment Outcome,, Dynamic,Stabilization,Lumbar, ibs clinic london
Date of Publication : 2010 Dec
Authors : Reyes-Sanchez A;Zarate-Kalfopulos B;Ramirez-Mora I;Rosales-Olivarez LM;pizar-Aguirre A;Sanchez-Bringas G;
Organisation : Division of Special Surgery, Instituto Nacional de Rehabilitacion, Mexico Distrito Federal, Mexico
Journal of Publication : Eur Spine J
Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/20496039
The London Spine Unit : Harley Street UK. Specialists in Cutting Edge Technologies for Spinal Surgery
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