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262 HealthJournals

Bone and joint diseases, disorders and injuries

Your bones help you move, give you shape and support your body. Bone diseases can make bones easy to break. Learn about different kinds of bone problems and how genetics can play a role.

Ribs and sternum injuries and disorders

The ribs and sternum, or breastbone, form the thoracic cage that protects the heart and lungs. Problems here include rib fractures, chest injuries and costochondritis, an inflammation of rib cartilage, along with differences present at birth such as funnel chest and asternia.

Pelvic disorders

The pelvis is the ring of bones at the base of the spine, and the pelvic floor is the layer of muscles that supports the bladder, bowel and uterus. Pelvic disorders include pelvic pain, weak pelvic support and pelvic organ prolapse, and Kegel exercises work the pelvic floor muscles.

Spine injuries and disorders

The spine, or vertebral column, supports the body and protects the spinal cord. Its problems range from low back pain, herniated disks and scoliosis to spinal stenosis and compression fractures, and in the neck, from neck pain to whiplash.

Skull, face and jaw injuries and disorders

The skull and facial bones protect the brain and shape the face, and the jaw lets people chew and speak. Problems here range from head, facial and nose injuries to temporomandibular disorders of the jaw and differences present at birth, such as cleft lip and palate.

Cartilage diseases and disorders

Cartilage is the firm, flexible tissue that cushions the joints and gives shape to the ears, nose and airways. Its disorders include chondromalacia patellae, which softens the cartilage under the kneecap, osteochondritis dissecans, relapsing polychondritis, Tietze syndrome and tracheomalacia.

Tendon and ligament injuries and disorders

Tendons attach muscles to bones, and ligaments hold bones together at the joints. Their injuries and disorders include sprains and strains, tendinitis, rotator cuff and Achilles tendon injuries, tennis elbow and ganglion cysts.

Fractures and dislocations

A fracture is a broken bone, and a dislocation is a joint forced out of place; both often follow falls and sports injuries. They range from rib, nose and spinal compression fractures and growth plate injuries in children to dislocated shoulders and kneecaps.

Bone growth disorders

Bone growth disorders change how the skeleton grows, in some cases before birth. They include growth plate injuries, which can disturb how a child's bones grow, dwarfism, and rare inherited skeletal conditions such as achondrogenesis and hypochondrogenesis.

Movement disorders

Movement disorders are nervous system conditions that cause unwanted, slowed or uncontrolled movement. They include Parkinson's disease, dystonia, essential tremor, Tourette syndrome and progressive supranuclear palsy, as well as walking problems.

Osteoporosis

Osteoporosis makes bones weak and brittle, so they break more easily. It can affect women, men and even children, and it often follows osteopenia, or low bone density. Bone density screening can find it before a bone breaks, and a few forms are inherited.

Bone cancers

Bone cancers start in the bones or the tissue around them, and some, like osteosarcoma and Ewing sarcoma, most often affect children and young adults. Other types include chondrosarcoma, chordoma, adamantinoma and ameloblastoma, a tumor of the jaw.

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