Acromioplasty is an arthroscopic surgical procedure of the acromion. Acromioplasty is an arthroscopic surgical procedure of the acromion. Generally, it implies removal of a small piece of the surface of the bone (acromion) that is in contact with a tendon causing, by friction, damage to the tendon. Recent research shows that an acrominoplasty of the shoulder is no more effective than a placebo1.