Muscle Disorders—Joint Disorders

A joint is where two or more bones come together, like the knee, hip, elbow, or shoulder. Joints can be damaged by many types of injuries or diseases, including

• Arthritis – inflammation of a joint. It causes pain, stiffness, and swelling. Over time, the joint can become severely damaged.
• Bursitis – inflammation of a fluid-filled sac that cushions the joint
• Dislocations – injuries that force the ends of the bones out of position

Treatment of joint problems depends on the cause. If you have a sports injury, treatment often begins with the RICE (Rest, Ice, Compression, and Elevation) method to relieve pain, reduce swelling, and speed healing. Other possible treatments include pain relievers, keeping the injured area from moving, rehabilitation, and sometimes surgery. For arthritis, injuries, or other diseases, you may need joint replacement surgery to remove the damaged joint and put in a new one.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

• Hypermobile joints (Medical Encyclopedia)
• Joint pain (Medical Encyclopedia)
• Joint swelling (Medical Encyclopedia)
• Joint x-ray (Medical Encyclopedia)
• Limited range of motion (Medical Encyclopedia)
• Steroid injections – tendon, bursa, joint (Medical Encyclopedia)

Also called: Myopathy

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Causes of muscle disorders include

• Injury or overuse, such as sprains or strains, cramps or tendinitis
• A genetic disorder, such as muscular dystrophy
• Some cancers
• Inflammation, such as myositis
• Diseases of nerves that affect muscles
• Infections
• Certain medicines

Sometimes the cause is not known.

• Caring for muscle spasticity or spasms (Medical Encyclopedia)
• Compartment syndrome (Medical Encyclopedia)
• Contracture deformity (Medical Encyclopedia)
• Creatine phosphokinase test (Medical Encyclopedia)
• Electromyography (Medical Encyclopedia)
• Eyelid twitch (Medical Encyclopedia)
• Hypotonia (Medical Encyclopedia)
• Muscle aches (Medical Encyclopedia)
• Muscle atrophy (Medical Encyclopedia)
• Muscle function loss (Medical Encyclopedia)
• Muscle twitching (Medical Encyclopedia)
• Rhabdomyolysis (Medical Encyclopedia)
• Weakness (Medical Encyclopedia)