頁籤選單縮合
題名 | Blood Flow Changes in the Femoral Head after Transtrochanteric Rotational Osteotomy--An Experimental Study= |
---|---|
作者 | 張明超; 朱任公; 陳天雄; 羅惠熙; Chang, Ming-chau; Chu, Yum-kung; Chen, Tain-hseung; Lo, Wai-hee; |
期刊 | 中華民國骨科醫學會雜誌 |
出版日期 | 19980600 |
卷期 | 15:2 1998.06[民87.06] |
頁次 | 頁83-90 |
分類號 | 416.26 |
語文 | eng |
關鍵詞 | |
英文摘要 | Avascular necrosis of femoral head is a frequent cause of hip pain. The most effective means for optimally treating this disease still remains controversial. Transtrochanteric rotational osteotomy (Sugioka’s technique), a conventional method to treat this disease, has a high success rate. The mechanical base of this technique involves reducing the force on the necrotic area and shifting he weight-bearing force to the healthy posterior region of the femoral head which has been thoroughly investigated. However, to our knowledge, the biological effects of this technique (including the blood flow change after the surgery) has not been reported. By employing microsphere injection, this study measures the blood flow change of the femoral head at two weeks after transtrochanteric rotational osteotomy in 32 adult dog5. The dogs are divided into four groups, with eight dogs in each group. In group one, a pilot study, the blood flow of bilateral femoral heads is measured without surgery to examine the feasibility of the microsphere technique. In group two, transtrochanteric osteotomy with 0 rotation is performed in one hip and the opposite hip functions as a control. In group three, same osteotomy with 45° anterior rotation is performed. In group four, same osteotomy with 90° anterior rotation is done. In ltddition, Wilcoxon test is used for data analysis. According to those results, the bilateral femoral heads do not significantly differ in terms of blood flow, implying that symmetric distribution of the microsphere of blood flow occurs in the normal femoral leads. In group two and group three, although the blood flow of the femoral heads is slightly lower on surgical hips than the control hips, no statistical difference occurs between the surgical and the nonsurgical hips (p>0.05). However, in group four, blood flow of the surgical heads is significant lower than the in group four, blood flow of the surgical heads is significant lower than the controlled normal hips (p<0.05). Based on the resu1ts in this study, we can conclude that trans trochanteric rotational osteotomy can not increase the blood flow of the femoral head and can even reduce the flow if the rotational angle exceeds 90°. The satisfactory clinical results of the Sugioka’s osteotomy might be largely ttributed to mechanical factors rather than the biological effect of improved circulation. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。