頁籤選單縮合
題名 | New Approach for Estimating the Area Ratio of the Lumbar Disc Hernia to the Spinal Canal |
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作者 | 鄔詩賢; 陳建宏; 陳文哲; 張恆雄; | 書刊名 | 中華民國骨科醫學會雜誌 |
卷期 | 15:2 1998.06[民87.06] |
頁次 | 頁91-98 |
分類號 | 416.61 |
關鍵詞 | Area Ratio; Conservative treatment; HIVD; |
語文 | 英文(English) |
英文摘要 | The successful rate of conservative treatment for herniated intervertebral disc (HIVD) is somewhere around 80% to 90% within 3 months. The ratio of areas of the disc herniation to the spinal canal has been proved to be able to provide a good positive correlation to the clinical filldings. To make the estimating processes for areas of the spinal canal and disc herniation no more technically difficulty or time consumption, simplified and accurate ways to derive the ratio of the above two areas were studied. In this research, Thelander’s ST-index was evaluated and two new algorithms, C- and W-algorithm, based on the analytical geometry, were proposed. Area measurement was simplified to linear measurements. 136 patients with typical clinical features of HIVD were included IS the discussing objects. The radiographic evaluation of CT scan included the linear measurements in the sagittal and transversal planes and the area measurements for both the hernia and the spinal canal. All data were obtained from computerized digitizing equipment. Based on the regression analysis, the new indices were proved to be more correct and significant results than the ST-index were provided and discussed. The average errors caused by ST-, C-and Walgorithms were 48%,5.7% and 4.3%, respectively. In the Paired t-test, the difference between the W-area and absolute area was insignificant statistically. From this study, the relative size of herniated disc to spinal canal can predict the prognosis of conservative treatment. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。