sternumbånd

Sternumbånd refers to the sternocostal ligaments, which are strong fibrous bands that connect the sternum (breastbone) to the ribs. These ligaments are crucial for the structural integrity of the rib cage and play a significant role in the joint between the sternum and the costal cartilages of the ribs, known as the sternocostal joints. There are several sternocostal ligaments, including anterior, posterior, superior, and inferior ones, all contributing to the stability of these joints.

The sternocostal joints are a type of synovial joint, allowing for a limited range of motion. This movement is essential for breathing, as it permits the rib cage to expand and contract. The sternumbånd, by reinforcing these joints, helps to withstand the forces exerted during respiration, as well as during physical activities. Damage to these ligaments can occur due to trauma, such as a direct blow to the chest, or through repetitive strain. Such injuries can lead to pain and instability in the chest wall, potentially affecting breathing mechanics. Medical conditions that affect connective tissues, such as certain inflammatory or autoimmune diseases, might also impact the sternocostal ligaments. Diagnosis typically involves physical examination and may be supplemented by imaging techniques like X-rays or CT scans. Treatment focuses on pain management, rest, and sometimes physical therapy to restore function and stability.