The phrase "glenohumeral joint" refers to the main joint in your shoulder, where the upper arm bone (humerus) meets the shoulder blade (glenoid). Full definition
The humerus — or upper arm bone moves around in the relatively shallow glenohumeral joint making a ball and socket articulation. (weckmethod.com)
They also reinforce ligaments and are continuous with joint capsules to help stabilize glenohumeral joint — they run from the scapula to the humerus! (bodybuilding-wizard.com)
I just required to do minor glenohumeral joint alterations but anything else was true to suit! (dresswe.com)