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 the function of the costochondral junction?
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.
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.
What is costochondral junction syndrome?
This area is known as the costochondral joint. The condition may also be called chest wall pain, costosternal syndrome or costochondrondynia. When there is swelling present, the condition is called Tietze syndrome (also known as chondropathia tuberosa or costochondral junction syndrome). In most people, the left side is most affected.
What is the function of the first sternochondral joint in mechanical ventilation?
Due to the lack of a joint cavity and the presence of an intraarticular fibrocartilage, the first sternochondral joint is structurally and functionally classified as a primary cartilaginous joint, or synchondrosis. As a result, the joint is nonaxial and permits almost no movement. This aspect is very important during mechanical ventilation.
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 is the role of ultrasonography in the evaluation of costochondral abnormalities?
Ultrasound can directly show the costal cartilage that is occult on chest radiography and therefore can be used to evaluate for costochondral abnormalities when chest radiography is negative.
