Normal Anatomy of the Shoulder Joint

The shoulder is the most flexible joint in the body making it the most susceptible to instability and injury. It is a 'ball-and-socket' joint. A ‘ball' at the top of the upper arm bone, humerus, fits neatly into a 'socket’, called the glenoid, which is part of the shoulder blade, scapula.

The shoulder joint is made up several bones and soft tissues. It has three bones, the collarbone (clavicle), scapula, and humerus.

Shoulder Instability

Shoulder instability is a chronic condition that causes frequent dislocations of the shoulder joint.

A dislocation occurs when the end of the humerus (the ball portion) partially or completely dislocates from the glenoid (the socket portion) of the shoulder. A partial dislocation is referred to as a subluxation whereas a complete separation is referred to as a dislocation.

Shoulder Dislocation

Playing more overhead sports activities and repeated use of shoulder at workplace may lead to sliding of the upper arm bone, the ball portion, from the glenoid–the socket portion of the shoulder. The dislocation might be a partial dislocation (subluxation) or a complete dislocation causing pain and shoulder joint instability. Shoulder joint often dislocates in the forward direction (anterior instability) and it may also dislocate in backward or downward direction.

Shoulder Impingement

Shoulder impingement is the condition of inflammation of the tendons of the shoulder joint. It is one of the most common causes of pain in the adult shoulder. The shoulder is a 'ball-and-socket' joint. A ‘ball' at the top of the upper arm bone, humerus, fits neatly into a 'socket’, called the glenoid, which is part of the shoulder blade, scapula. Shoulder impingement is also called as swimmer’s shoulder, tennis shoulder, or rotator cuff tendinitis.

Clavicle Fracture

Clavicle fracture, also called broken collarbone is a very common sports injury seen in people who are involved in contact sports such as football and martial arts as well as impact sports such as motor racing. A direct blow over the shoulder that may occur during a fall on an outstretched arm or a motor vehicle accident may cause the clavicle bone to break. Broken clavicle may cause difficulty in lifting your arm because of pain, swelling and bruising over the bone.

Shoulder Labrum Tear

The shoulder joint is a “ball and socket” joint that enables the smooth gliding and thereby the movements of arms. However, it is inherently unstable because of the shallow socket. A soft rim of cartilage, the labrum lines the socket and deepens it so that it accommodates the head of the upper arm bone better.

Rotator Cuff Repair

Rotator cuff is the group of tendons in the shoulder joint providing support and enabling wider range of motion. Major injury to these tendons may result in tear of these tendons and the condition is called as rotator cuff tear. It is one of the most common causes of shoulder pain in middle aged adults and older individuals.

Treatment of Frozen Shoulder

Frozen shoulder, also called adhesive capsulitis is a condition characterized by pain and loss of motion in shoulder joint. It is more common in older adults aged between 40 and 60 years and is more common in women than men.

Shoulder Arthroscopy

Arthroscopy is a minimally invasive diagnostic and surgical procedure performed for joint problems. Shoulder arthroscopy is performed using a pencil-sized instrument called an Arthroscope. The arthroscope consists of a light system and camera to project images to a computer screen for your surgeon to view the surgical site. Arthroscopy is used to treat disease conditions and injuries involving the bones, cartilage, tendons, ligaments, and muscles of the shoulder joint.

Shoulder Labrum Reconstruction

Shoulder reconstruction is a surgical procedure performed in patients with shoulder instability to improve stability, restore the function and prevent recurrent dislocations of the shoulder joint.

Shoulder instability is a problem of loose shoulder joint that occurs when the structures that surround the shoulder joint such as the ligaments, capsule and cartilage become overstretched or injured. When this occurs you may have shoulder joint dislocation. A dislocation occurs when the head of the upper arm bone (humerus) is forced out of the shoulder socket (glenoid). Shoulder dislocation can be partial or complete. A partial dislocation occurs when the ball of the upper arm comes partially out of the socket. It is referred to as a subluxation. A complete dislocation occurs when the ball comes all the way out of the socket.

Minimally Invasive Shoulder Replacement

Shoulder joint replacement is a surgical procedure to replace damaged bone surfaces with artificial components to relieve pain and improve functional ability in the shoulder joint. Shoulder joint replacement can be done by a traditional "open" approach or through a minimally invasive approach. The incision in minimally invasive shoulder joint replacement is about 5 cm compared to 17 cm with the traditional approach. Other benefits of minimally invasive surgery include less damage to the soft tissues and underlying muscles enabling a faster recovery with less pain and a smaller scar. Blood loss during the surgery is also less and complications after the surgery are fewer when compared to the open technique.

"Warning: This video contains footage of actual surgery which may be disturbing to some viewers."

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