The collarbone (clavicle) helps connect the upper limb to the trunk. The inner end of the clavicle, close to the center of the chest, rests on the sternum through the sternoclavicular (SC) joint. What an interesting joint! It needs to have stout, strong ligaments to serve as a stable connection between the limb and the … More Sternoclavicular Joint Injuries: When to Consider Surgery, And How Is It Done Safely