Department of Orthopedics and Trauma Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener-Strasse 62, 50937, Cologne, Germany.
Faculty of Medicine, Institute of Anatomy II, University of Cologne, Joseph-Stelzmann Str. 9, 50937, Cologne, Germany.
Surg Radiol Anat. 2023 Dec;45(12):1587-1592. doi: 10.1007/s00276-023-03249-x. Epub 2023 Oct 14.
A comprehensive analysis of the morphology of fractures of the coronoid process (CP) can aid diagnosis and guide treatment. The involvement of the radial notch of the ulna (RN)-e.g., in anterolateral facet fractures and transverse fractures of the CP-may influence the biomechanical conditions of the proximal radioulnar joint. However, the morphometric relation between the CP and the RN and the extent to what the proximal radioulnar joint can be affected in these types of fractures is unknown.
A total of 113 embalmed, cadaveric ulnae were dissected. All soft tissue was removed. Strictly lateral, high-resolution photographs were taken and digitally analyzed. The height of the CP and its relation to the RN was measured. Sex differences and correlations between measured parameters were calculated.
Mean height of the CP was 16 mm (range: 12-23 mm; SD: 2). Mean height of the RN was 16 mm (11-25 mm; 2.2). The 50% mark of the CP corresponded to 18% (0-56%; 11.2) of the height of the RN. No significant differences were found between male and female specimens.
The RN of the ulna extends only to a small part to the CP. Transverse or anterolateral fractures of less than 50% of the coronoid process may involve only a small portion of the proximal radioulnar joint.
对冠状突骨折形态的全面分析有助于诊断和指导治疗。尺骨桡切迹（RN）的受累，例如在前外侧关节面骨折和冠状突的横形骨折中，可能会影响近桡尺关节的生物力学条件。然而，冠状突和 RN 之间的形态计量关系，以及在这些类型的骨折中近桡尺关节可能受到多大影响尚不清楚。
共解剖了 113 具防腐的尸体尺骨。去除所有软组织。拍摄严格外侧的高分辨率照片并进行数字分析。测量冠状突的高度及其与 RN 的关系。计算了测量参数的性别差异和相关性。
CP 的平均高度为 16 毫米（范围：12-23 毫米；SD：2）。RN 的平均高度为 16 毫米（11-25 毫米；2.2）。CP 的 50%标记对应于 RN 高度的 18%（0-56%；11.2）。男女标本之间无显著差异。
尺骨的 RN 仅延伸到 CP 的一小部分。小于冠状突 50%的横形或前外侧骨折可能仅涉及近桡尺关节的一小部分。
