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Unilateral and Bilateral Lumbosacral Transitional Vertebrae: Comparison of the Incidence of Combined Diseases
Journal of the Korean Radiological Society ; : 975-982, 2000.
Article in Korean | WPRIM | ID: wpr-145291
ABSTRACT

PURPOSE:

The purpose of this study was to evaluate the radiologic findings of lumbosacral transitional verte-brae (LSTV), as seen on plain radiographs and MRI, and to compare the incidence of combined diseases be-tween unilateral and bilateral groups. MATERIALS AND

METHODS:

We retrospectively evaluated the plain radiographs and MR images of 63 patients with LSTV, classifying its type according to Castellvi 's criteria, and evaluated disc herniations, facet joint os-teoarthritic change, scoliosis, and spondylolisthesis. We then compared the incidence of each combined diseases between unilateral and bilateral groups, and as a control group, 63 patients without LSTV were also eval-uated.

RESULTS:

Forty of 63 cases of LSTV (63.5%) were bilateral, and 23 (36.5%) unilateral. According to Castellvi 's criteria, the incidence of type I was 41.3% (unilateral 7 cases, bilateral 19), type III30.2% (unilateral 8 cases, bilateral 11), type II23.8% (unilateral 8 cases, bilateral 7), and type IV 4.8% (unilateral 0 cases, bilateral 3).With combined diseases, the incidence of disc herniation was 66.7% (unilateral 15 cases, bilateral 27), moderate to severe facet joint osteoarthritic change 28.6% (unilateral 11 cases, bilateral 7), scoliosis 27.0% (unilateral 9 cases, bilateral 8), and spondylolisthesis 9.5% (unilateral 2 cases, bilateral 4). The incidence of facet joint os-teoarthritic change was significantly higher in the unilateral group (47.8%) than in the bilateral group (17.5%) (p=0.02), and scoliosis occurred at a higher rate in the unilateral group (39.1%) than in the bilateral group (20.0%) (p=0.18). There was, however, no significant difference in the incidence of disc herniation and spondylolisthesis between the two groups (unilateral group 65.2% and 8.7%; bilateral group 67.5% and 10.0%, respectively).

CONCLUSION:

With LSTV, the incidence of facet joint osteoarthritic change was significantly higher in the unilat-eral group than in the bilateral group, and scoliosis also showed a higher rate of occurrence in the unilateral group.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Scoliosis / Spine / Spondylolisthesis / Magnetic Resonance Imaging / Incidence / Retrospective Studies / Zygapophyseal Joint Type of study: Incidence study / Observational study / Prognostic study / Risk factors Limits: Humans Language: Korean Journal: Journal of the Korean Radiological Society Year: 2000 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Scoliosis / Spine / Spondylolisthesis / Magnetic Resonance Imaging / Incidence / Retrospective Studies / Zygapophyseal Joint Type of study: Incidence study / Observational study / Prognostic study / Risk factors Limits: Humans Language: Korean Journal: Journal of the Korean Radiological Society Year: 2000 Type: Article