Nonsteroid anti-inflammatory drugs prevent the recurrence of heterotopic ossification after excision

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Abstract
Summary The prophylactic effect of nonsteroid anti-inflammatory drugs on the recurrence of high-grade periarticular heterotopic ossification after resection was studied in ten patients operated on for loosening of one or both components of a cemented total hip prosthesis. These drugs, given at a standard dosage for 1–3 weeks after surgery, prevented the recurrence of heterotopic ossification. In some patients the range of motion of their joint increased following surgery, while it remained unaffected in the majority. At follow-up 2–5 years after surgery, all patients walked well and there were no clinical or radiographs signs of loosening of the prosthetic components. It is concluded that treatment with NSAIDs following resection of periarticular heterotopic ossification prevents recurrence.