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Pathophysiology of Heterotopic Ossification

Zychowicz, Michael E.

doi: 10.1097/NOR.0b013e3182920d85
Pathophysiology

Heterotopic ossification (HO) is a pathologic condition that leads to the development of bone within nonosseous soft tissues. A common site for HO development is at the hip. The bone that forms is believed to develop through stimulation by cellular mediators and altered neurovascular signaling. Heterotopic ossification can be a debilitating disease leading to pain, edema, and stiffness. This only compounds already-debilitating comorbid conditions such as a spinal cord injury, head injury, or trauma. Several factors, including prostaglandin E2, bone morphogenetic protein, and the inflammatory process, are believed to contribute to the development of HO. The full scope of pathophysiology contributing to HO is not fully understood.

Michael E. Zychowicz, DNP, FAANP, Director, Master of Science of Nursing Program, and Lead Faculty, Orthopedic NP Program, Duke University School of Nursing, Durham, NC.

The author has disclosed that he has no financial interests to any commercial company related to this educational activity.

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