Elbow DislocationWhen the joint surfaces of an elbow are separated, the elbow is dislocated. Elbow dislocations can be complete or partial, and usually occur after a trauma, such as a fall or accident. In a complete dislocation, the joint surfaces

Unstable KneecapWhen things are "in the groove, " they're going smoothly. That certainly is the case with your knee. As long as your kneecap (patella) stays in its groove in the knee, you can walk, run, sit, stand, and move easily. When the kneecap

Unstable KneecapWhen things are "in the groove, " they're going smoothly. That certainly is the case with your knee. As long as your kneecap (patella) stays in its groove in the knee, you can walk, run, sit, stand, and move easily. When the kneecap

Hip FracturesA hip fracture is a break in the upper portion of the femur (thighbone). Most hip fractures occur in elderly patients whose bones have become weakened by osteoporosis. When a hip fracture occurs in a younger patient, it is typically th

Shoulder Injuries in the Throwing AthleteOverhead throwing places extremely high stresses on the shoulder, specifically to the anatomy that keeps the shoulder stable. In throwing athletes, these high stresses are repeated many times and can lead to

Acetabular FracturesAn acetabular fracture is a break in the socket portion of the "ball-and-socket" hip joint. These hip socket fractures are not common — they occur much less frequently than fractures of the upper femur or femoral head (the "ball

Cerebral PalsyCerebral palsy (CP) is a disorder that affects a child's ability to control their muscles. It is caused by damage or abnormalities in the parts of the brain that are involved with movement and coordination. The spinal cord and muscles

Elbow Injuries in the Throwing AthleteOverhand throwing places extremely high stresses on the elbow. In baseball pitchers and other throwing athletes, these high stresses are repeated many times and can lead to serious overuse injury.Unlike an ac