Laane Charlotte L E, Raasveld Floris V, de Klerk Huub H, Weigel Daniel T, Pratap Jayanth S, Chen Neal C, Eberlin Kyle R
Hand and Arm Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Trauma Research Unit, Erasmus Medical Center, Erasmus University, Rotterdam, The Netherlands.
Hand (N Y). 2024 Oct 29:15589447241284783. doi: 10.1177/15589447241284783.
Determining accurate intraoperative screw length in complex distal radius fractures may pose difficulties. With volar plate fixation, excessive screw length may result in extensor pollicis longus injury and this can be challenging to determine via intraoperative imaging. This study aims to identify the precise anatomic location and parameters of Lister's tubercle on the dorsal aspect of the radius.
The anatomy and location of Lister's tubercle was evaluated in 26 cadaveric arms, of which 27% were female, with a mean age of 73.6 years. Additionally, Lister's tubercle was evaluated on 198 computed tomography (CT) scans using a quantitative distal radius surface map. Median age was 28 years, and 28% of the patients were female.
As measured in cadaveric arms, the mean Lister's tubercle length was 12.6 mm, and width was 5.4 mm. The distance from the radial styloid to the distal and proximal border of Lister's tubercle averaged 23.0 and 10.4 mm, respectively. Of the total distal radial width, Lister's tubercle begins 43% from the radial border and spans to 42% of the ulnar border, encompassing 16% of the entire width of the dorsal distal radius. On CT mapping, the distance between the peak of Lister's tubercle and the ulnar and radial border of the radius was 46% and 54%, respectively. Female sex was associated with a smaller distal radius width, but not with a smaller Lister's tubercle.
Knowledge of Lister's tubercle anatomy may assist in more precise screw placement in volar locked plating of distal radius fractures.
IV-Therapeutic.
确定复杂桡骨远端骨折的准确术中螺钉长度可能存在困难。采用掌侧钢板固定时，螺钉过长可能导致拇长伸肌损伤，而通过术中影像来确定这一点具有挑战性。本研究旨在确定桡骨背侧Lister结节的精确解剖位置和参数。
对26具尸体手臂的Lister结节的解剖结构和位置进行评估，其中27%为女性，平均年龄73.6岁。此外，使用桡骨远端定量表面图谱对198例计算机断层扫描（CT）进行Lister结节评估。患者中位年龄为28岁，28%为女性。
在尸体手臂上测量，Lister结节的平均长度为12.6mm，宽度为5.4mm。从桡骨茎突到Lister结节远端和近端边界的距离平均分别为23.0mm和10.4mm。在桡骨远端总宽度中，Lister结节从桡侧边界起43%处开始，延伸至尺侧边界的42%，占桡骨远端背侧整个宽度的16%。在CT图谱上，Lister结节顶点与桡骨尺侧和桡侧边界之间的距离分别为46%和54%。女性与较小的桡骨远端宽度相关，但与较小的Lister结节无关。
了解Lister结节的解剖结构可能有助于在桡骨远端骨折掌侧锁定钢板固定时更精确地置入螺钉。
IV-治疗性。
