Assistant
Definition
By Gregory R. Waryasz, MD
The sternoclavicular joint cartilage of the musculoskeletal system is characterized by its location.
It is part of the sternoclavicular joint. It consists of fibrocartilage.
Its unique structural feature is that it is located on the on the articulating surfaces of the medial clavicle, 1st costal cartilage, and manubrium.
The sternoclavicular joint cartilage as well as all other bones, muscles, and ligaments of the body are derived of mesodermal origin in the embryo.
The function of the cartilage is to provide a surface for joint motion by decreasing the coefficient of friction.
Common diseases include arthritis/degenerative joint disease (DJD).
Commonly used diagnostic procedures include clinical history, physical exam, x-ray, CT scan, and MRI.
It is usually treated with physical therapy and NSAIDs. Arthritis can also be treated with surgery.
References
Elstrom J, Virkus W, Pankovich (eds), Handbook of Fractures (3rd edition), McGraw Hill, New York, NY, 2006.
Koval K, Zuckerman J (eds), Handbook of Fractures (3rd edition), Lippincott Williams & Wilkins, Philadelphia, PA, 2006.
Lieberman J (ed), AAOS Comprehensive Orthopaedic Review, American Academy of Orthopaedic Surgeons, 2008.
Moore K, Dalley A (eds), Clinically Oriented Anatomy (5th edition), Lippincott Williams & Wilkins, Philadelphia, PA, 2006.