In some cases, it is brought on by injury. Distal clavicular osteolysis is the term for small fractures developing on the end of the collarbone closest to the shoulder, known as the distal end.

as well as any retained distal clavicular fragments within the superior capsule of the AC joint. The patients were placed in a lateral decubitus position. Bucks traction was used to secure the ...

A condition called distal clavicular osteolysis might also be the cause of your sore collarbone - this is when small fractures developing on the end of the collarbone closest to the shoulder.