Abstract
Purpose: The coracoclavicular ligament attaches to the coracoclavicular tuberosity, and consists of the conoid and trapezoid ligaments. It plays an important role in the stability of the acromioclavicular joint. In addition, it is clinically important that the little-known coracoclavicular joint causes shoulder pain and upper extremity paresthesias. The aim of this study was to create an osteologic map of the morphologic projection of the coracoclavicular ligament or joint components on the clavicle.
Methods: In this study, 93 dry clavicles without age and sex records were used. The attachment sites of the trapezoid and conoid ligaments, which form the coracoclavicular ligament, were examined structurally and formally.
Results: The attachment sites of the trapezoid ligament were found to be triangular in 9 clavicles, ellipsoidal in 18 clavicles and trapezoid in 62 clavicles. Anatomical structure of the attachment sites of the trapezoid ligament; 57 were tuberosities, 12 were tubercles, 11 were line and 9 were fovea.
The attachments of the conoid ligament on the clavicle were found to be 23 weak, 37 moderate and 29 strong. Anatomical structure of the attachment sites of the conoid ligament; 50 were tubercle, 20 were tuberosity, 8 were massa, 6 were crista, 3 were impressio and 2 were spina. The attachments of the conoid ligament on the clavicle were found to be 20 weak, 50 moderate and 19 strong. The incidence of coracocalavicular joint was 6% in this study.
Conclusion: In conclusion, this study provides an osteologic map of the morphologic projections of the components of the coracoclavicular ligament or joint in the clavicle. It was thought that the results of this study could shed light on surgeons in orthopedic surgery and clinicians in the field of physical therapy.