Muscle and Bone Diseases

The musculoskeletal system consists of the body's bones, muscles, tendons, ligaments, joints, and cartilage.

Back Pain

Back pain is one of the most common medical problems in the United States. It can range from a dull, constant ache to a sudden, sharp pain that makes it hard to move.

Bursitis

Bursitis is a common condition that causes swelling and pain around muscles and bones.

Fibromyalgia

Fibromyalgia is a long-lasting or chronic disorder that causes muscle pain and fatigue (feeling tired).

Fibrous Dysplasia

Fibrous dysplasia happens when healthy bone is replaced with other types of tissue. Bones may become weak or oddly shaped, or they may even break.

Growth Plate Injuries

Injuries to the growth plate happen when a break or fracture develops near or at the end of a long bone.

Heritable Disorders of Connective Tissue

The more than 200 heritable disorders of connective are related to problems in genes that are responsible for building connective tissues.

Hip Replacement Surgery

Hip replacement surgery removes damaged or diseased parts of a hip joint and replaces them with new, man-made parts.

Joint Replacement Surgery

Joint replacement surgery removes damaged or diseased parts of a joint and replaces them with new, man-made parts. 

Knee Problems

Knee problems happen when you injure or develop disease in your knee and it can’t do its job.

Marfan Syndrome

Marfan syndrome is a disorder that affects connective tissue. Connective tissue supports many parts of your body.

Osteogenesis Imperfecta

Osteogenesis imperfecta (OI) is a disease that affects your bones. OI is also called brittle bone disease because it causes bones to be weak and break easily.

Osteonecrosis

Osteonecrosis is a bone disease that results from the loss of blood supply to the bone. Without blood, the bone tissue dies, causing the bone to collapse.

Osteoporosis

Osteoporosis is a disease in which your bones become weak and are more likely to break.

Paget’s Disease of Bone

Paget’s disease is a disorder that causes bones to grow too large and weaken. You can have Paget’s disease in any bones in your body.

Scoliosis in Children and Adolescents

Scoliosis is a disorder in which there is a sideways curve of the spine. Curves are often S-shaped or C-shaped. In most people, there is no known cause for this curve.

Shoulder Problems

Most shoulder problems happen when soft tissues in the shoulder region break down.

Spinal Stenosis

Spinal stenosis is narrowing of the spine. This narrowing puts pressure on the spinal cord and nerves and can cause pain.

Sports Injuries

Sports injuries are injuries that happen when playing sports or exercising. There are two kinds of sports injuries: acute and chronic.

Sports Injuries in Youth: A Guide for Parents

Parents learn about common sports injuries among youth and the ways to prevent such injuries from happening.

Sprains and Strains

A sprain is an injury to a ligament (tissue that connects two or more bones at a joint). A strain is an injury to a muscle or tendon (fibrous cords of tissue that connect muscle to bone).

Tendinitis

Tendinitis is swelling and pain in a joint. It is a common condition, usually caused by repeated injuries to a tendon, the part of the joint that connects muscles to bones.