Overview of the Sternoclavicular Joint
The sternoclavicular joint is situated at the proximal end of the collar bone (clavicle) and the manubrium’s superior clavicular notch. The joint is a saddle-type that gives the clavicle its capability to move within the horizontal and vertical plane. The joint of sternoclavicular has a big role in motioning the arm and shoulder backward and forward. This joint is stabilized by the following structures:
- Posterior sternoclavicular ligament – covers the back surface of the sternoclavicular joint
- Anterior sternoclavicular ligament – covers the front surface of the sternoclavicular joint
- Interclavicular ligament – located between both the two clavicles, passing over the sternum
- Costoclavicular ligament – the shortest ligament attached to the SC joint; connects the clavicle with the first rib
- articular disc – the thickest and most fibrous ligament of the SC joint; connects the clavicle with the first rib and support certain motion of the shoulder
- Articular capsule – surrounds the SC joint; keeps the proximal end of the clavicle from pointing up.
General Characteristics of the Sternoclavicular Joint
Injuries Pertaining to the Sc Joint
Summary of the Sc Joint
The sternoclavicular joint is truly an amazing structure of our body. It allows us to move our shoulder backward and forward. It is supported by different ligaments and protected by an outer layer. The inner layer secretes synovial fluid that allows smooth movement.
If we are not careful, the SC joint may sustain debilitating injuries. This article has helped you to better understand the sternoclavicular joint and how it works.