Phillips James, Martin Daniel, Ford Jonathan, Panas Kenton, Bauer Amy, Salomon Kevin, Albers Jacob, Decker Summer, Nofsinger Charles
Lakeview Health, Leesburg, FL, USA.
Department of Orthopaedics and Sports Medicine, University of South Florida Morsani College of Medicine, Tampa, FL, USA.
Ann Jt. 2022 Oct 15;7:31. doi: 10.21037/aoj-22-20. eCollection 2022.
Given the increased incidence of ulnar collateral ligament (UCL) injuries and the projected increase in reconstruction procedures, a robust understanding of the morphologic location of the sublime tubercle is paramount to anatomic reconstruction. There is limited research evaluating the morphology of the sublime tubercle of the proximal ulna in an anterior-to-posterior plane.
Twenty-five computed tomography (CT) scans of intact proximal elbow joints for patients were selected using a de-identified database. Cases with history of fracture or surgical intervention to the elbow joint were excluded. These CT scans were then imported into the Mimics Innovation Suite 24.0 software to analyze the sublime tubercle angle from the midpoint of the trochlear notch. All left elbow angle and clock-face values were converted to right elbow values for analysis.
The average sublime tubercle angle from the midpoint of the trochlear notch was 282.53 degrees. The angle was converted to a clock face descriptor which located the sublime tubercle at 9.42. Our findings demonstrate that, in the non-throwing population, the morphology of the sublime tubercle can be expected to have a consistent medial location between 9 and 10 o'clock or 2 and 3 o'clock on the contralateral elbow.
In relation to the proximal ulnar landmarks, the sublime tubercle, in the non-throwing population, has a consistent relative location.
鉴于尺侧副韧带（UCL）损伤的发生率增加以及预计重建手术数量的上升，深入了解小结节的形态学位置对于解剖重建至关重要。目前评估尺骨近端小结节在前后平面形态的研究有限。
使用一个去识别化数据库选择了25例完整近端肘关节的计算机断层扫描（CT）图像。排除有肘关节骨折或手术干预史的病例。然后将这些CT扫描图像导入Mimics Innovation Suite 24.0软件，以分析从滑车切迹中点测量的小结节角度。所有左侧肘关节角度和钟面值均转换为右侧肘关节值进行分析。
从滑车切迹中点测量的小结节平均角度为282.53度。该角度转换为钟面描述符后显示小结节位于9点42分处。我们的研究结果表明，在非投掷人群中，预计小结节的形态在对侧肘关节上的内侧位置一致，介于9点至10点或2点至3点之间。
对于尺骨近端标志而言，在非投掷人群中小结节具有一致的相对位置。
