DESCRIBING THE SIZE OF LUMBAR DISC HERNIATIONS USING COMPUTED-TOMOGRAPHY - A COMPARISON OF DIFFERENT SIZE INDEX CALCULATIONS AND THEIR RELATION TO SCIATICA

被引:34
作者
THELANDER, U
FAGERLUND, M
FRIBERG, S
LARSSON, S
机构
[1] Diagnostic Radiology, University Hospital, Urned
[2] Departments of Orthopedics, University Hospital, Umeå
关键词
COMPUTED TOMOGRAPHY; HERNIA SIZE; LUMBAR DISC HERNIA; NONOPERATIVE TREATMENT; SCIATICA; SIZE INDEX;
D O I
10.1097/00007632-199409000-00020
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Study Design. The study compared different methods to measure the absolute and relative size of lumbar disc herniations on computed tomography scans and their relation to sciatica. Methods. Computed tomography (CT) examinations were done before and at 3 and 24 months after nonoperative treatment in 30 patients with lumbar disc herniations. The size of the herniation was described by different indexes and related to the degree of sciatica. One index was formed by the area of the herniation in relation to the spinal canal (A-index), whereas two indexes were formed by linear measurements of the herniation in relation to the spinal canal in either two (ST-index) or one direction (S-index). Results. Each index was correlated significantly to the degree of sciatica. The area of the herniations decreased markedly over time. Conclusions. Linear measurements of the herniation in two perpendicular directions provide a practical and accurate way of describing the size of lumbar disc herniations.
引用
收藏
页码:1979 / 1984
页数:6
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