Biomechanical analysis of proximal junctional kyphosis: preliminary results.
Stud Health Technol Inform
; 176: 299-302, 2012.
Article
em En
| MEDLINE
| ID: mdl-22744514
ABSTRACT
Proximal junctional kyphosis (PJK) is a complication related to spinal instrumentation. Defined as a pathological kyphosis of levels above the upper instrumented vertebra, PJK is not yet fully understood although many studies have been conducted in this regard. The objective of this study is therefore to understand the influence of some biomechanical risk factors with respect to PJK. For this purpose, a biomechanical model has been developed and used to test three factors the sagittal balance, the implant type used at the upper instrumented vertebra (UIV) and the proximal dissection (posterior ligaments disruption and joint capsule degeneration). The preliminary results showed that the PJK is correlated to both sagittal balance and the reduction of spinal stability due to posterior ligaments disruption and joint capsule degeneration.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fusão Vertebral
/
Coluna Vertebral
/
Cirurgia Assistida por Computador
/
Cifose
/
Modelos Biológicos
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Humans
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article