Analysis of Factors Contributing to Postoperative Spinal Instability after Lumbar Decompression for Spinal Stenosis
Korean Journal of Spine
;
: 149-154, 2013.
Artículo
en Inglés
| WPRIM
| ID: wpr-35268
ABSTRACT
OBJECTIVE:
Decompressive laminectomy is one of the most commonly used surgical methods for the treatment of spinal stenosis. We retrospectively examined the risk factors that induce spinal instability, including slippage (spondylolisthesis) and/or segmental angulation after decompressive laminectomy on the lumbar spine.METHODS:
From January 1, 2006 to June 30, 2010, 94 consecutive patients underwent first-time single level decompressive laminectomy without fusion and discectomy. Of these 94 patients, 42 with a follow-up period of at least 2 years were selected. We measured the segmental angulation and slippage in flexion and extension dynamic lumbar radiographs. We analyzed the following contributing factors to spinal instability age/sex, smoking history, disc space narrowing, body mass index (kg/m2), facet joint tropism, effect of the lordotic angle on lumbar spine, asymmetrical paraspinal muscle volume, and surgical method and level.RESULTS:
Female patients, normal lordotic angle, and asymmetrical paraspinal muscle volume were factors more significantly associated with spondylolisthesis (p-value=0.026, 0.015, <0.01). Statistical results indicated that patients with facet tropism were more likely to have segmental angulation (p-value=0.046). Facet tropism and asymmetry of paraspinal muscle volume were predisposing factors to spinal instability (p-value=0.012, <0.01).CONCLUSION:
Facet joint tropism and asymmetry of paraspinal muscle volume are the most important factors associated with spinal instability; therefore, careful follow-up after decompressive laminectomy in affected patients is necessary.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Humo
/
Estenosis Espinal
/
Columna Vertebral
/
Espondilolistesis
/
Fumar
/
Índice de Masa Corporal
/
Causalidad
/
Estudios Retrospectivos
/
Factores de Riesgo
/
Estudios de Seguimiento
Tipo de estudio:
Estudio de etiología
/
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Femenino
/
Humanos
Idioma:
Inglés
Revista:
Korean Journal of Spine
Año:
2013
Tipo del documento:
Artículo
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