Biomechanical Comparison of Spinal Fusion Methods Using Interspinous Process Compressor and Pedicle Screw Fixation System Based on Finite Element Method
Journal of Korean Neurosurgical Society
;
: 91-97, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-150270
ABSTRACT
OBJECTIVE:
To investigate the biomechanical effects of a newly proposed Interspinous Process Compressor (IPC) and compare with pedicle screw fixation at surgical and adjacent levels of lumbar spine.METHODS:
A three dimensional finite element model of intact lumbar spine was constructed and two spinal fusion models using pedicle screw fixation system and a new type of interspinous devices, IPC, were developed. The biomechanical effects such as range of motion (ROM) and facet contact force were analyzed at surgical level (L3/4) and adjacent levels (L2/3, L4/5). In addition, the stress in adjacent intervertebral discs (D2, D4) was investigated.RESULTS:
The entire results show biomechanical parameters such as ROM, facet contact force, and stress in adjacent intervertebral discs were similar between PLIF and IPC models in all motions based on the assumption that the implants were perfectly fused with the spine.CONCLUSION:
The newly proposed fusion device, IPC, had similar fusion effect at surgical level, and biomechanical effects at adjacent levels were also similar with those of pedicle screw fixation system. However, for clinical applications, real fusion effect between spinous process and hooks, duration of fusion, and influence on spinous process need to be investigated through clinical study.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fusão Vertebral
/
Coluna Vertebral
/
Amplitude de Movimento Articular
/
Análise de Elementos Finitos
/
Degeneração do Disco Intervertebral
/
Disco Intervertebral
/
Métodos
Idioma:
Inglês
Revista:
Journal of Korean Neurosurgical Society
Ano de publicação:
2016
Tipo de documento:
Artigo
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