Title: Early clinical observation on Mobi-C disc prosthesis in treatment of cervical spondylosis
Abstract: Objective To observe the early clinical effect of Mobi-C disc prosthesis in treatment of cervical spondylosis.Methods A total of 35 patients(including 45 levels) undergoing anterior cervical discectomy and cervical total disc replacement with Mobi-C disc prosthesis from May 2009 to June 2010 were enrolled in the study.Range of motion(ROM) of operated segments and C2-7 lordosis angle were measured through neutral and dynamic hyperextension and hyperflexion reontgenographs before and after operation.Cervical spinal cord function and pain of neck and upper extremities were evaluated through Japanese Orthopaedic Association(JOA) and visual analogue scale(VAS) scores.All data were analyzed statistically.Results All patients were followed up for 12-24 months,mean 17.5 months.Operated segmental ROM was 8.6°±2.4° before operation and 9.1°±2.1° at the final follow-up,without statistical significance between them(P0.05).The C2-7 lordosis angle was 11.7°±9.6° preoperatively and 14.5°±7.3° at the final follow-up,with statistical significance between them(P0.05).In the 35 patients,24 had the symptoms of myelopathy to different extent before surgery,with a JOA score of 9.4±1.4,and the score was increased to 15.0±1.1 at the final follow-up(P0.05).And 26 patients suffered from pain of neck and upper extremities,with a VAS score of 6.7±1.2,which was decreased to 1.3±0.8 at the final follow-up(P0.05).Conclusion Artificial cervical disc replacement with Mobi-C disc prosthesis preserves operated segmental ROM,improves cervical lordosis,and produces satisfactory clinical outcomes during the early follow-up.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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