Tennis elbow, or lateral epicondylitis, is a condition in which the forearm muscles become damaged from overuse. The condition is common in athletes and in people with jobs that require vigorous use of the forearm muscles, such as painters.| orthoinfo.aaos.org
Your arm is kept in your shoulder socket by your rotator cuff. The rotator cuff is a group of four muscles that come together as tendons to form a covering around the shoulder. When one of these tendons is torn, it may be painful to lift or rotate your arm.| orthoinfo.aaos.org
Patellofemoral pain syndrome (PFPS) is a broad term used to describe pain in the front of the knee and around the patella, or kneecap. It is sometimes called "runner's knee" or "jumper's knee" because it is common in people who participate in sports.| orthoinfo.aaos.org
A pulled hamstring or strain is an injury to one or more of the muscles at the back of the thigh. Most hamstring injuries respond well to simple, nonsurgical treatments. Hamstring injuries are common in athletes who participate in sports that require sprinting, such as track, soccer, and basketball.| orthoinfo.aaos.org
There are more than 100 different types of arthritis and the major types that affect the knee are osteoarthritis, rheumatoid arthritis, and posttraumatic arthritis. There is no cure for arthritis, but there are many treatment options to help relieve pain and stay active.| orthoinfo.aaos.org
One of the most common knee injuries is an anterior cruciate ligament (ACL) sprain or tear. Partial tears of the anterior cruciate ligament are rare; most ACL injuries are complete or near complete tears.| orthoinfo.aaos.org
Achilles tendinitis is a common condition that causes pain along the back of the leg near the heel. The Achilles tendon is the largest tendon in the body. It connects your calf muscles to your heel bone and is used when you walk, run, and jump.| orthoinfo.aaos.org
Meniscus tears are among the most common knee injuries. Athletes, particularly those who play contact sports, are at risk for meniscus tears. However, anyone at any age can tear a meniscus. When people talk about torn cartilage in the knee, they are usually referring to a torn meniscus.| orthoinfo.aaos.org
A fracture is a broken bone. Treatment for a broken bone follows one basic rule: the broken pieces of bone must be put back into position and prevented from moving out of place until they are healed.| orthoinfo.aaos.org