Shoulder impingement occurs when obstructions develop in the space normally inhabited by the rotator cuff muscles. With less room for dynamic movement, the arm and shoulder do not enjoy their full range of motion. A breakdown in muscle, bursa and...
The glenohumeral joint is where the top of the arm bone (humeral head) meets the glenoid portion of the shoulder blade. The acromioclavicular joint is where the collarbone (clavicle) meets the acromion portion of the shoulder blade. The...
The acromioclavicular joint, the AC joint, links the top portion of the shoulder blade to the collarbone. An athlete can injure the AC joint when he sustains a fall or direct trauma to the joint. The rate at which rehabilitation exercises progress...
A separated AC joint, or acromioclavicular joint, can occur for a number of reasons, but no matter the cause, there are a number of rehabilitation exercises that you can do at home to increase the rate of healing. Gently increasing the repetitions...
AC joint separations are common injuries, especially for athletes competing in contact sports like football. Separations are graded depending on their severity. While severe sprains may require surgery, most do not. Whether surgery is needed or...
When the human arm is raised or rotated, the ball of the humerus bone must turn smoothly in the socket of the acromioclavicular (AC) joint. The supportive bones above this area define the amount of space for turning, or the impingement interval. ...
Because football is such a high impact and physically taxing sport, you can easily injure yourself while throwing a football. Arm pain can come from many training errors and conditions, some that require a doctor's treatment. Because pain can be...
Acromioclavicular arthritis, or AC joint arthrosis, is a condition affecting the acromioclavicular joint of the shoulder. It can be due to osteoarthritis, rheumatoid arthritis or post-traumatic arthritis. It tends to be more common with...
The AC, or acromioclavicular, joint is the point on the top of the shoulder where the acromion process of the scapula, or shoulder blade, joins the lateral part of the clavicle, or collar bone. The joint allows the shoulder blade to slide on the...
Shoulder injuries caused by overuse or trauma all have one common symptom: shoulder pain. The pain location and speed of onset give clues as to which disorder has occurred. These may involve the muscles, tendons, bursae, ligaments, bones and/or...
Posterior hip dislocation occurs when the head of the femur is pushed out of the pelvis in the backward direction. Anterior hip dislocation does the same but is pushed in the forward direction. Both leave the hip in a fixed position and are very...
