Pronounced: Het-toro-toe-pik Oss-if-a-kay-shun
Heterotopic ossification (HO) is the growth of bone in abnormal places like soft tissue. It can occur anywhere in the body. The hip, knees, shoulders and elbows are the most common locations. This condition can vary from minor to heavy growth.
Treatment involves physical therapy, medications, and in some cases, surgery.
The exact cause of HO is unknown. There may be a genetic link to the development of this condition.
Factors that may increase your chance of developing HO include:
Symptoms vary based on the severity and site of the bone growth. HO may cause:
Your doctor will ask about your symptoms and medical history. A physical exam will be done. You may be referred to a specialist. An orthopedic doctor focuses solely on problems of the bones and joints.
Tests may include the following:
X-ray of Pelvic Repair
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Talk with your doctor about the best plan for you. Options vary based on the scope of the disease, and include the following:
Therapy is an important part of treatment. Range of motion exercises will help to maintain mobility. It can also keep the disease from getting worse. Therapy may also include some stretching and strength training.
Your doctor may prescribe:
Radiation is used to prevent abnormal bone growth, mainly after hip surgery.
Surgery may be used to remove the abnormal bone and increase range of motion. Radiation and medications are often given after surgery, since the disease can recur.
American Academy of Orthopaedic Surgeons
Spinal Cord Injury Information Network
Canadian Orthopaedic Association
Canadian Orthopaedic Foundation
Black DL, Smith JD, Dalziel RE, Young DA, Shimmin A. Incidence of heterotopic ossification after hip resurfacing. Australian and New Zealand Journal of Surg. 2007;77:642-647.
Frontera: Essentials of Physical Medicine and Rehabilitation .1st ed. Philadelphia; Hanley and Belfus; 2002.
Pape HC, Marsh S, Morley JR, Krettek C, Giannoudis PV. Current concepts in the development of heterotopic ossification. Journal of Bone and Joint Surgery. 2004;86(6):783-7.
Spinal cord injury—InfoSheet #12. Spinal Cord Injury Information Network website. Available at: http://images.main.uab.edu/spinalcord/pdffiles/info-12.pdf . Accessed August 22, 2013.
Zychowicz ME. Pathophysiology of heterotopic ossification. Orthop Nurs. 2013;32(3):173-177.
Last reviewed June 2013 by John C. Keel, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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