Relationship between morphology of iliolumbar ligament and lower lumbar disc degeneration.
J Spinal Disord
; 12(4): 348-52, 1999 Aug.
Article
en En
| MEDLINE
| ID: mdl-10451052
ABSTRACT
Previous imaging studies have shown little difference in the degree of disc degeneration between L4-L5 and L5-S1. We hypothesized that because the morphology of the iliolumbar ligament affects the stability of the lumbosacral junction, then it could determine the lower lumbar disc degeneration. Fifty-three male and 47 female patients were classified into three groups according to their disc degeneration grade-those in whom the L5-S1 disc was less degenerated (group A), more degenerated (group B), and equally degenerated (group C) compared to the L4-L5 disc on T2-weighted magnetic resonance images. The length and direction of the anterior and posterior iliolumbar ligaments were measured on T1-weighted axial images. The iliolumbar ligament was shorter in group A than in group B or C, and was oriented significantly more posteriorly in group A than in groups B or C. The morphology of the iliolumbar ligament, especially its length and direction, can be a factor influencing the development of disc degeneration at L4-L5 and L5-S1.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades de la Columna Vertebral
/
Disco Intervertebral
/
Inestabilidad de la Articulación
/
Ligamentos
/
Vértebras Lumbares
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Spinal Disord
Asunto de la revista:
ORTOPEDIA
Año:
1999
Tipo del documento:
Article
País de afiliación:
Japón