Semi-restricted non-fusion system (Cosmic) in the treatment of lumbar degenerative disease: mid-term follow-up outcomes

doi:10.3969/j.issn.2095-4344.2015.39.017

Abstract

Abstract:

BACKGROUND: Compared with rigid internal fixation, semi-restricted non-fusion system (Cosmic) can reduce the destruction of lumbar physiological structure during operation, partly retain the range of motion, maintain the stability of surgical segment, and help to prevent the adjacent segment degeneration.
OBJECTIVE: To observe the mid-term follow-up outcome of semi-restricted non-fusion system (Cosmic) in the treatment of lumbar degenerative disease.
METHODS: 21 patients with lumbar degenerative disease, including 10 male patients and 11 female patients, at the age of 19-63 years old, received posterior decompression by fenestration, nucleotomy, and Cosmic system internal fixation. Visual analogue scale score and Oswestry disability index were used for clinical evaluation. Intervertebral height and range of motion of surgical segment and the proximal adjacent segment were collected before and after operation.
RESULTS AND CONCLUSION: All the patients were followed up for 15-48 months. No internal fixator loosening or rupture was found during the follow-up. The visual analogue scale score and Oswestry disability index at the last follow-up were lower than those before operation (P < 0.01). During the last follow-up, there were no significant differences in the intervertebral height of surgical segment and the proximal adjacent segment, and the range of motion of surgical segment was lower than that before operation (P < 0.01). No significant difference was found in range of motion of the proximal adjacent segment. These results suggest that semi-restricted dynamic
non-fusion system (Cosmic) can reduce the destruction of lumbar physiological structure during operation, partly retain the range of motion, maintain the stability of surgical segment, and help to prevent the adjacent segment degeneration with well mid-term follow-up outcomes.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Internal Fixators, Lumbar Vertebrae, Spinal Fusion

CLC Number:

R318

Li Er-nan, Kuang Zheng-da . Semi-restricted non-fusion system (Cosmic) in the treatment of lumbar degenerative disease: mid-term follow-up outcomes[J]. Chinese Journal of Tissue Engineering Research, doi: 10.3969/j.issn.2095-4344.2015.39.017.

Figures/Tables 3

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