腕部尺骨差異與金培氏病及尺骨壓迫症候群的關連性

Ulnar Variance and Its Relationship with Kienbock's Disease and Ulnar Impaction Syndrome

李國樑(Kuo-Liang Lee) ； 郭光華(Kuang-Hua Kuo) ； 潘蔚文(Wei-Wen Pan) ； 譚芷峰(Chih-Feng Tan) ； 秦作威(Trow-Way Chin) ； 鐘正國(Cheng-Kuo Chung)

《中華放射線技術學雜誌》 28卷2期 (2004/12) Pp. 111-116

https://doi.org/10.30045/CJRT.200412.0002

摘要

In normal population, the length difference of the ulna end from the radial end limited to ±2 mm. The difference beyond this limit becomes a ulnar variance. Ulnar variance is associated with some disorders of the wrist, for example, the Kienbock's disease and the ulnar impaction syndrome. This retrospective study is aimed to correlate the relationship of Kienbock's disease or ulnar impaction syndrome with the ulnar variance by the measurements on plain radiographs of the wrist. Twenty two patients were diagnosed to have Kienbock's disease or ulnar imapction syndrome by imaging studies. The ulnar variance was then measured. Positive ulnar variance trends to produce triangular fibrocartilage and lunate bone compression that presents with pain or local tenderness at the ulnar end clinically. Negative ulnar variance may cause vascular traction at the ulnar end and leads to avascular necrosis of the lunate bone. The positive ulnar variance measured in this study is quite large in range with a mean difference of 4.09 mm (p value=0.002). Positive ulnar variance and ulnar impaction is statistically significantly correlated. The mean negative ulnar variance measured is 2.91 mm. and p＜0.05 suggesting a relationship also exists in negative ulnar variance with the Kienbock's disease. In conclusion, we believed there is a close relationship of ulnar variance (both positive and negative ulnar variance) with ulnar impaction syndrome and Kienbock's disease in the wrist.

關鍵字

尺骨差異 ； 金培氏病 ； 尺骨壓迫症候群

並列摘要

In normal population, the length difference of the ulna end from the radial end limited to ±2 mm. The difference beyond this limit becomes a ulnar variance. Ulnar variance is associated with some disorders of the wrist, for example, the Kienbock's disease and the ulnar impaction syndrome. This retrospective study is aimed to correlate the relationship of Kienbock's disease or ulnar impaction syndrome with the ulnar variance by the measurements on plain radiographs of the wrist. Twenty two patients were diagnosed to have Kienbock's disease or ulnar imapction syndrome by imaging studies. The ulnar variance was then measured. Positive ulnar variance trends to produce triangular fibrocartilage and lunate bone compression that presents with pain or local tenderness at the ulnar end clinically. Negative ulnar variance may cause vascular traction at the ulnar end and leads to avascular necrosis of the lunate bone. The positive ulnar variance measured in this study is quite large in range with a mean difference of 4.09 mm (p value=0.002). Positive ulnar variance and ulnar impaction is statistically significantly correlated. The mean negative ulnar variance measured is 2.91 mm. and p＜0.05 suggesting a relationship also exists in negative ulnar variance with the Kienbock's disease. In conclusion, we believed there is a close relationship of ulnar variance (both positive and negative ulnar variance) with ulnar impaction syndrome and Kienbock's disease in the wrist.

並列關鍵字

ulnar variance ； Kienbock's disease ； ulnar impaction syndorme