Treatment volumes include the peri-articular region, and can be used for hip, knee, elbow, shoulder, jaw or in patients after spinal cord trauma. Single dose radiation therapy is well tolerated and is cost effective, without an increase in bleeding, infection or wound healing disturbances.Other possible treatments. Certain antiinflammatory agents, such as indomethacin, ibuprofen and aspirin, have shown some effect in preventing recurrence of heterotopic ossification after total hip replacement. Conservative treatments such as passive range of motion exercises or other mobilization techniques provided by physical therapists or occupational therapists may also assist in preventing HO. A review article looked at 114 adult patients retrospectively and suggested that the lower incidence of HO in patients with a very severe TBI may have been due to early intensive physical and occupational therapy in conjunction with pharmacological treatment. Another review article also recommended physiotherapy as an adjunct to pharmacological and medical treatments because passive range of motion exercises may maintain range at the joint and prevent secondary soft tissue contractures, which are often associated with joint immobility. See also
Intramembranous ossification
Myositis ossificans
Fibrodysplasia ossificans progressiva
Progressive osseous heteroplasia

References
External links
pmr/112 at eMedicine
radio/336 at eMedicine
Rheumatism or rheumatic disorders are conditions causing chronic, often intermittent pain affecting the joints or connective tissue. Rheumatism does not designate any specific disorder, but covers at least 200 different conditions, including arthritis and  "non-articular rheumatism", also known as "regional pain syndrome" or "soft tissue rheumatism". There is a close overlap between the term soft tissue disorder and rheumatism. Sometimes the term "soft tissue rheumatic disorders" is used to describe these conditions.The term "Rheumatic Diseases" is used in MeSH to refer to connective tissue disorders. The branch of medicine devoted to the diagnosis and therapy of rheumatism is called rheumatology. Types
Many rheumatic disorders of chronic, intermittent pain (including joint pain, neck pain or back pain) have historically been caused by infectious diseases. Their etiology was unknown until the 20th century and not treatable. Postinfectious arthritis, also known as reactive arthritis, and rheumatic fever are other examples. In the United States, major rheumatic disorders are divided into 10 major categories based on the nomenclature and classification proposed by the American College of Rheumatology (ACR) in 1983. Diffuse connective tissue diseases
Rheumatoid arthritis
Juvenile arthritis
Systemic lupus erythematosus
Sjögren syndrome
Scleroderma
Polymyositis
Dermatomyositis
Behçets disease
Relapsing polychondritis
Arthritis associated with spondylitis (i.e. spondarthritis)
Ankylosing spondylitis
Reactive arthritis
Psoriatic arthritis
Osteoarthritis (i.e. osteoarthrosis, degenerative joint disease)
Rheumatic syndromes associated with infectious agents (direct and indirect or reactive)
Metabolic and endocrine diseases associated with rheumatic states
Gout, pseudogout
Neoplasms
Neurovascular disorders
Bone and cartilage disorders
Extraarticular disorders
Bursitis/Tendinitis of the shoulder, wrist, biceps, leg, knee cap (patella), ankle, hip, and Achilles tendon
Capsulitis
Miscellaneous disorders associated with articular manifestations
Palindromic rheumatism is thought to be a form of rheumatoid arthritis.