The costochondral junction is the region where the bone of the rib merges into the hyaline cartilage of the costal cartilages. This junction represents a developmental anomaly in that the progressive juvenile ossification process falls short of its cartilaginous anlage.
Does the costochondral joint have a joint capsule?
These joints have no joint capsule, cavity or ligaments. The periosteum of the rib is continuous the perichondrium of the costal cartilage, binding the bone and cartilage together. The costochondral joints are supplied by branches of the intercostal nerves, which are the anterior rami of the thoracic spinal nerves.
What is costochondritis and costosternal joint?
Costochondritis. Costochondritis is the inflammation and associated tenderness of the costochondral joints, which are associated with the articulation of the anterior end of the lower six to seven ribs to the sternum. Closely related to the costochondral joints are the costosternal joints, which are associated with the articulation…
How many costochondral joints are in the rib cage?
There are ten pairs of costochondral joints between ribs 1-10 and their respective costal cartilages. These joints are immobile and are therefore functionally classified as synarthroses. This article will cover the anatomy and function of the costochondral joints.
How common are angular deformities of the costochondral junction?
The order was changed after discussion with the referring physician. On ultrasound, 15 patients (94%) had a diagnosis of angular deformities of the costochondral junction.
What causes rib fractures at the costochondral junctions?
The subsequent dorsoventral compression of the chest leads to fracture at the weakest points, which are the costochondral junctions and floating ribs. At a different site, midshaft fractures affecting ribs two to four (under the scapula) are not uncommon at slaughter but are thought to have a different etiology.
