Lee Hyun-Joo, Joung Sanghyun, Kholinne Erica, Lee Suk-Joong, Yoon Jong Pil, Tan Jun, Jeon In-Ho
Department of Orthopaedic Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea.
AIRS, Daegu, Korea.
Ewha Med J. 2024 Apr;47(2):e25. doi: 10.12771/emj.2024.e25. Epub 2024 Apr 30.
This study aimed to quantify the relationship between proximal humeral rotation and the lateral border of the bicipital groove on fluoroscopic imaging.
A composite normal humerus with a marker placed on the lateral border of the bicipital groove was affixed to a custom rotation device at the proximal cut segment. Consecutive fluoroscopic images were captured from -60° to 60° in 5° increments and from -15° to 15° in 1° increments. The index value was calculated by taking the ratio of the distance from the medial boundary of the proximal humerus to the lateral border of the bicipital groove to the distance between the medial and lateral boundaries of the proximal humerus. The correlation between the humeral rotation and the index value was determined.
The index value showed a strong positive linear correlation position during internal rotation of the humerus across the entire range (r=0.998, P<0.001), as well as when the humerus was externally rotated, ranging from 15° of internal rotation to 15° of external rotation (r=0.991, P<0.001).
The lateral border of the bicipital groove may serve as a useful intraoperative landmark for assessing proximal humeral rotation. This could potentially enhance the outcomes of humeral fracture repair and upper arm arthroplasty.
本研究旨在通过透视成像量化肱骨近端旋转与肱二头肌沟外侧缘之间的关系。
将一个在肱二头肌沟外侧缘放置标记物的复合正常肱骨固定于近端截骨段的定制旋转装置上。以5°增量从-60°至60°以及以1°增量从-15°至15°连续采集透视图像。通过计算从肱骨近端内侧边界到肱二头肌沟外侧缘的距离与肱骨近端内侧和外侧边界之间距离的比值来得出指数值。确定肱骨旋转与指数值之间的相关性。
在肱骨整个内旋范围内，指数值显示出强正线性相关关系（r = 0.998，P < 0.001），在肱骨外旋时，从内旋15°至外旋15°范围内也显示出强正线性相关关系（r = 0.991，P < 0.001）。
肱二头肌沟外侧缘可作为评估肱骨近端旋转的有用术中标志。这可能会提高肱骨骨折修复和上臂关节成形术的效果。
