解剖学杂志2025，Vol.48Issue(6)：474-477,4.DOI:10.3969/j.issn.1001-1633.2025.06.004
冠突尖韧带相关解剖组织学和影像学研究
Anatomical,histological,and imaging investigation of apical ligament of coronoid process
吴鸿宝 1陈剑明 2刘玉新 3刘观燚 4倪宁 2肖靖祎5
作者信息
- 1. 宁波市第六医院,疼痛科,宁波 315000
- 2. 宁波市第六医院,骨肿瘤科,宁波 315000
- 3. 宁波卫生职业技术学院基础医学教研室,宁波 315000
- 4. 宁波市第六医院,脊柱外科,宁波 315000
- 5. 宁波市第六医院,创伤外科,宁波 315000
- 折叠
摘要
Abstract
Objective:To investigate the existence,morphological characteristics and function of the apical ligament of the coronoid process in the elbow joint through integrated anatomical,histological and imaging analyses.Methods:Ten frozen elbow joints from cadavers were dissected to measure the coronoid process and to isolate capsulo-ligamentous structures.The collagen fiber structure of the joint capsule was analyzed by tissue staining and sectioning.The CT images from 20 patients with elbow joint fractures were collected.Having been reconstructed on the three-dimensional images,the height and width of the coronary process,and the distance between the fracture fragment and the humeral trochlear were measured.Results:Anatomical studies showed that white connective tissue attached to the cartilaginous surface of the coronoid process.Histological sections,scanned through CaseViewer 2.4 software,showed ligament-like tissue attached to the bony tissue of the coronoid,with an attachment point thickness of(1.86±0.45)mm.The imaging analysis indicated that the height of the coronoid process fracture was(7.68±3.54)mm,the linear distance from the fracture to the humerus was(3.18±0.87)mm,and the distance from the fracture to the midpoint of the olecranon was(14.57±3.32)mm.According to the Regan Morrey classification,there were 14 typeⅠ,4 typeⅡ,and 2 typeⅢ fractures.There was no significant correlation between the distance from the fracture fragment to the humerus and the fragment height or distance to the olecranon midpoint.Conclusion:Anatomical and histological analyses revealed the presence of a ligament-like structure within the anterior aspect of the coronoid process capsule.Imaging evaluations demonstrated no significant correlation between the linear distance from the fracture fragment to the humeral axis,the height of the fracture fragment,and its distance to the midpoint of the olecranon.Furthermore,a distinct ligamentous attachment was identified at the tip of the ulnar coronoid process,herein termed the apical ligament.These findings contribute to a refined understanding of coronoid tip anatomy,support the standardization of treatment strategies for coronoid tip fractures,and enhance postoperative rehabilitation while reducing the risk of complications.关键词
肘关节/尺骨/冠突/尖韧带/计算机断层摄影Key words
elbow joint/ulna/coronoid process/ligament/computed tomography分类
医药卫生引用本文复制引用
吴鸿宝,陈剑明,刘玉新,刘观燚,倪宁,肖靖祎..冠突尖韧带相关解剖组织学和影像学研究[J].解剖学杂志,2025,48(6):474-477,4.
