what is acromioclavicular osteoarthritis
Osteoarthritis of the acromioclavicular (AC) joint is a common condition causing anterior or superior shoulder pain, especially with overhead and cross-body activities.This most commonly occurs in middle-aged individuals because of degeneration to the fibrocartilaginous disk that cushions the articulations.steoarthritis of the acromioclavicular (AC) joint is a common condition causing anterior or superior shoulder pain, especially with overhead and cross-body activities.