Use of a non-spherical humeral head implant coupled with an inlay glenoid component may lead to glenohumeral recentering in patients with eccentric glenoid wear and posterior subluxation ...

The four muscles of the rotator cuff have three main functions that include rotating the humerus, compressing the humeral head into the glenoid cavity, which is the concavity in the head of the ...

Shoulder instability—abnormal movement of the humeral head resulting in subluxation or dislocation from the glenoid cavity. This may be associated with varying degrees of pain. Shoulder joint ...

The primary mode of failure will be glenoid erosion. 1. ... 1983 and 1992 for the treatment of painful glenoid arthrosis in shoulders that had a prosthetic replacement of the humeral head.

Occasionally, the humeral head comes out of or separates from the glenoid socket. If it’s a partial separation, it is referred to as a shoulder subluxation. A complete separation is called a ...

The Catalyst CSR is a single-tray, bone-preserving total shoulder arthroplasty system containing a precision ellipsoid humeral head and less invasive glenoid component, using specialized ergonomic ...

The AP view of the normal shoulder demonstrates the normal asymmetry of the humeral head in anatomic position. The larger portion is on the medial side, seated in the glenoid fossa.

Physical examination. Range of movement is normal or reduced in traumatic instability. Apprehension and instability, especially when the arm is elevated and externally rotated is a key finding. The ...