Rotator Cuff Tear
A rotator cuff is a group of tendons in the shoulder joint that provides support and enables a wide range of motion. A major injury to these tendons may result in rotator cuff tears. It is one of the most common causes of shoulder pain in middle-aged and older individuals. A rotator cuff tear may occur with repeated use of the arm for overhead activities, while playing sports, or from a motor accident.
Shoulder instability is a chronic condition that causes frequent dislocation of the shoulder joint. The common symptoms of shoulder instability include pain with certain movements of the shoulder, popping or grinding sound that may be heard or felt, swelling and bruising of the shoulder seen immediately following subluxation or dislocation.
A dislocation occurs when the ends of your bones are partially or completely moved out of their normal position in a joint. A partial dislocation is referred to as a subluxation, whereas a complete separation is referred to as a dislocation. AC joint dislocation is the separation of the collar bone or clavicle from the acromion (the top portion of the shoulder blade or scapula at the outer edge of the shoulder) due to severe trauma or injury.
The break or fracture of the clavicle (collarbone) is a common sports injury associated with 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.
Impingement results in the young and middle-aged who engage in physical activities that require repeated overhead arm movements. The pain may be due to bursitis (inflammation of the bursa) overlying the rotator cuff or tendonitis of the cuff itself. In some circumstances, a partial tear of the rotator cuff may cause impingement pain.
Biceps Tendon Rupture
The biceps tendon can tear at the shoulder joint or elbow joint. Most biceps tendon ruptures occur at the shoulder, which is referred to as a proximal biceps tendon rupture. When it occurs at the elbow it is referred to as a distal biceps tendon rupture and is less common. Biceps tendon ruptures occur most commonly from an injury, such as a fall on an outstretched arm, or from overuse of the muscle, either due to age or from repetitive overhead movements such as with tennis and swimming.
Arthritis of the Shoulder
The term arthritis literally means inflammation of a joint but is generally used to describe any condition in which there is damage to the cartilage. Damage of the cartilage in the shoulder joint causes shoulder arthritis. Inflammation is the body's natural response to injury. The warning signs that inflammation presents are redness, swelling, heat, and pain.
The term arthritis means inflammation of a joint and is associated with cartilage damage. Cartilage is a cushioned padding lining the bones that make up a joint in order to absorb stress during movement. Damage of the cartilage in the sternoclavicular joint of the shoulder causes sternoclavicular arthritis. When the cartilage is damaged, the two bones rub against each other causing pain, swelling, and stiffness of the joint.
Anterior Shoulder Instability
Anterior shoulder instability, also known as anterior glenohumeral instability, is a condition in which damage to the soft tissues or bone causes the head of the humerus (upper arm bone) to dislocate or sublux from the glenoid fossa, compromising the function of the shoulder. It is caused by trauma or injury to the glenohumeral joint in which the upper arm bone is dislodged from its usual position in the middle of the glenoid fossa, and there is no longer joint articulation.
Posterior Shoulder Instability
Posterior shoulder instability, also known as posterior glenohumeral instability, is a condition in which the head of the humerus (upper arm bone) dislocates or subluxes posteriorly from the glenoid (socket portion of the shoulder) as a result of significant trauma. A partial dislocation is referred to as a subluxation whereas a complete separation is referred to as a dislocation.
A break in a bone that makes up the shoulder joint is called a shoulder fracture.
Fractures of the glenoid are rare but can occur due to major trauma or during high-energy sports activities.
The term SLAP (superior –labrum anterior-posterior) lesion or SLAP tear refers to an injury of the superior labrum of the shoulder.
Shoulder Labral Tear
Traumatic injury to the shoulder or overuse of the shoulder (throwing, weightlifting) may cause the labrum to tear. In addition, aging may weaken the labrum leading to injury.
Sports that involve overhead movements and repeated use of the shoulder at your workplace may lead to sliding of the upper arm bone from the glenoid. The dislocation might be a partial dislocation (subluxation) or a complete dislocation causing pain and shoulder joint instability. The shoulder joint often dislocates in the forward direction (anterior instability), and sometimes in the backward or downward direction.
Rotator Cuff Pain
The rotator cuff consists of a group of tendons and muscles that surround and stabilize the shoulder joint. These tendons allow a wide range of movement of the shoulder joint across multiple planes. Irritation or injury to these tendons can result in rotator cuff pain.
Shoulder Ligament Injuries
Shoulder ligament injuries are injuries to the tough elastic tissues present around the shoulder that connect bones to each other and stabilize the joint. The ligaments present in the shoulder are connected to the ends of the scapula, humerus, and clavicle bones which form the shoulder complex. The extensive stretching or tearing of these ligaments from acute or chronic injuries can lead to instability in the shoulder joint.
Shoulder injuries most commonly occur in athletes participating in sports such as swimming, tennis, pitching, and weightlifting. The injuries are caused due to the over usage or repetitive motion of the arms.
Baseball and Shoulder Injuries
Shoulder injuries in baseball players are usually associated with pitching. While this overhand throwing activity can produce great speed and distance for the ball, when performed repeatedly, can place a lot of stress on the shoulder. While pitching, the arm is thrown outward and backward to generate speed. This action forces the head of the humerus forward, stressing the surrounding ligaments and tendons. These stresses can lead to injuries, causing pain and inflammation.
Rotator Cuff Re-tear
Rotator cuff repair is a surgery to repair an injured or torn rotator cuff. A re-tear may occur a few years after surgery due to multiple reasons including aging, a massive previous tear (more than 5cm), fatty degradation of the tendons, inflammatory arthritis, and inappropriate rehabilitation.
Throwing Injuries of the Shoulder
Throwing injuries of the shoulder are injuries sustained as a result of trauma by athletes during sports activities that involve repetitive overhand motions of the arm as in baseball, American football, volleyball, rugby, tennis, track and field events, etc. Throwing injuries are mostly seen in the shoulder and elbow and can occur due to improper techniques, training errors, muscle imbalance, and overuse of muscles.
Acromioclavicular (AC) Arthritis
The acromioclavicular joint is part of the shoulder joint. It is formed by the union of the acromion, a bony process of the shoulder blade, and the outer end of the collar bone or clavicle. The joint is lined by cartilage that gradually wears with age as well as with repeated overhead or shoulder level activities such as basketball. The condition is referred to as AC arthritis or acromioclavicular arthritis.
The shoulder is the most flexible joint in the body that enables a wide range of movements. Aging, trauma or sports activities can cause injuries and disorders that can range from minor sprains or strains to severe shoulder trauma.
Acromioclavicular Joint Sprains
The collarbone and the shoulder blade are connected by the acromioclavicular joint. This is supported by a strong band of ligaments called the acromioclavicular and coracoclavicular ligaments. These ligaments are tightly wound around the bones, providing strength and support to the joint. An injury or tear of these ligaments can result in an acromioclavicular joint sprain.
Partial Rotator Cuff Tear
A partial rotator cuff tear is an incomplete tear that involves damage to a part of the tendon. The tear can be at the top, bottom or inner side of the tendon and does not go all the way through the tendon completely.
Shoulder Labral Tear with Instability
The shoulder consists of a ball-and-socket joint formed by the upper end of the humerus (upper arm bone) and a cavity in the shoulder blade called the glenoid. The glenoid cavity is surrounded by a rim of cartilage called the labrum. The labrum adds depth to the cavity making the joint more stable and positions the ball within the socket.
Proximal Biceps Tendon Rupture
The biceps muscle is the muscle of the upper arm which is necessary for the movement of the shoulder and elbow. It is made of a ‘short head’ and a ‘long head’ which function together. These are connected to the shoulder joint by two tendons called the proximal biceps tendons and to the elbow joint by a single distal biceps tendon.
Rotator Cuff Bursitis
The rotator cuff is a set of muscles and tendons which hold the various bones of the shoulder joint together, providing strength and support. Inflammation of the bursa, a fluid-filled sac between the rotator cuff tendons and a bony process at the top of the shoulder called the acromion, is known as shoulder bursitis or rotator cuff bursitis. It is often accompanied by inflammation of the tendons or rotator cuff tendonitis.
Multidirectional Instability of the Shoulder
Instability may be described by the direction in which the humerus is subluxated or dislocated from the glenoid. When it occurs in several directions it is referred to as multidirectional instability.
Acromioclavicular (AC) Joint Injuries
The acromioclavicular (AC) joint in the shoulder is very important for shoulder strength, motion, and maintaining shoulder position. The joint is stabilized by various ligaments and a capsule, which can cause pain and affect normal joint function if damaged.
Sternoclavicular Joint Injury
The sternoclavicular joint, commonly called the SC joint, is located between the breastbone (sternum) and the collarbone (clavicle). Sternoclavicular joint injuries can occur due to severe trauma or direct blows to the body as seen in motor vehicle accidents or in contact sports, where there is stretching or tearing of the supporting ligaments, and sometimes even fractures or dislocations.
Periprosthetic Shoulder Infection
A periprosthetic shoulder joint infection is a very rare, but devastating complication of shoulder replacement surgery characterized by infection of the tissues surrounding your shoulder prosthesis.
Proximal Humerus Fractures
The humerus is the bone that forms the upper arm. It articulates with the glenoid cavity of the scapula (shoulder blade) to form the shoulder joint and with the lower arm bones – the ulna and radius – to form the elbow joint. The proximal humerus is the upper end of the arm bone that forms the shoulder joint. The humerus is broadly divided into the head, neck and shaft region.