Permanent heterotopic ossification at the injection site after diphtheria-tetanus-pertussis immunizations in children who have fibrodysplasia ossificans progressiva.

Lanchoney, T F; Cohen, R B; Rocke, D M; Zasloff, M A; Kaplan, F S · J Pediatr · 1995

case_control · Level III

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Abstract

In patients who have fibrodysplasia ossificans progressiva, routine childhood diphtheria-tetanus-pertussis immunizations administered by intramuscular injection caused a significant risk of permanent heterotopic ossification at the site of injection (p < 10(-8)), whereas measles-mumps-rubella immunizations administered by subcutaneous injection posed no significant risk. Intramuscular injections should be avoided, if possible, once a diagnosis of fibrodysplasia ossificans progressiva has been established.

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