Heterotopic ossification after patellar tendon repair in a man with trisomy 8 mosaicism: A case report and literature review

Abstract

Introduction. Heterotopic ossification is the abnormal formation of lamellar bone in soft tissue. Its presence jeopardizes functional outcome, impairs rehabilitation and increases costs due to subsequent surgical interventions. Case presentation. We present a case of a 32-year-old African-American man with trisomy 8 mosaicism who developed severe heterotopic ossification of his right extensor mechanism subsequent to repair of a patellar tendon rupture. Conclusion: To the best of our knowledge there are no prior reports of heterotopic ossification as a complication of patellar tendon repair. This case may suggest an association between trisomy 8 mosaicism and increased risk of heterotopic ossification. © 2011 Chen and Chmell; licensee BioMed Central Ltd.