The shoulder is the most flexible joint in the body making it the most susceptible to instability and injury.
Shoulder is a ‘ball-and-socket’ joint. A ‘ball’ at the top of the upper arm bone (the humerus) fits neatly into a ‘socket’, called the glenoid, which is part of the shoulder blade (scapula).
Provides attachment to muscles of the upper arm. The humoral head forms the ball of the ball-and-socket shoulder joint.
Scapula (shoulder blade) is a flat, triangular bone providing attachment to the muscles of back and neck.
The clavicle is an S-shaped bone that connects the shoulder girdle to the trunk. It maintains the shoulder in a functional position with the axial skeleton and allows varied arm positions. In addition to its structural function, the clavicle protects major underlying nerves and blood vessels as they pass from the neck to the axilla.
The coracoid process is the extension around the shoulder joint at the front – varus force.
The acromion is the extension of scapula (shoulder blade) around the shoulder joint at the rear to from a roof. This is also called the acromial.
Glenoid, is the depression at the end of scapula that forms the socket of ball-and-socket shoulder.
Rotator cuff The rotator cuff refers to a group of four tendons that attach four shoulder muscles to the upper arm (humerus) and hold it in the shoulder joint. Many shoulder problems are caused by injuries to the rotator cuff.
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Pinehurst Surgical is a multi-specialty clinic comprised of ten specialty centers located in a state-of-the-art surgical facility in Pinehurst, NC. Our Pinehurst, Raeford, Rockingham, Sanford and Troy clinical offices offer expert orthopaedic care serving patients in Pinehurst, Southern Pines, Sanford, Troy, Rockingham, Raeford, Fort Bragg & Surrounding Areas throughout North and South Carolina, and beyond.