The Mumford procedure is a surgical intervention that aims to relieve shoulder pain caused by subacromial impingement syndrome. There are several synonyms for this procedure, including acromioplasty, subacromial decompression, and shoulder decompression surgery. These terms refer to the same surgical technique, which involves removing a portion of the acromion bone to create more space for the rotator cuff tendons. Other related phrases include shoulder impingement surgery, rotator cuff surgery, and shoulder blade surgery. These terms may vary depending on the context or region, but they all pertain to surgical procedures that treat shoulder pain and discomfort.