Painful myositis ossificans as a rare complication of the iliac crest bone graft donor site harvesting

Myositis ossificans (mo) is a condition in which heterotopic bone formation occurs in the skeletal muscles and most commonly seen following trauma. occurrence of this disease at the site of iliac crest bone graft harvest is unusual and only one case has been reported so far in the literature. we report a 27 years old patient with a history of iliac bone graft harvest four years ago. he presented with a localized bone mass and chronic pain around his right ilium at the site of previous bone graft removal two years back. the bone mass was excised surgically. the patient remained symptom free and no radiographic evidence of recurrence was observed 12 months post surgery. this complication can add to the morbidity of the operation for which the bone graft is taken from the iliac crest.