title: [Peroneal nerve injury due to heterotopic ossification: rare complication following surgical treatment of an acetabular fracture].
abstract: BACKGROUND
  Sciatic nerve entrapment due to heterotopic ossification is a rare late complication of the surgical treatment of an acetabular fracture.
  
  
  METHODS
  In this article we present the case of a 34-year-old male, who developed weakness of the dorsiflexors of his right ankle several months after an open reduction of an acetabular fracture. The weakness was caused by isolated ectopic bone formation around the peroneal nerve in the presence of an anatomical variation, namely a high division of the sciatic nerve into the tibial and peroneal nerves. Surgical resection of the heterotopic ossification resulted in nearly complete recovery of dorsiflexion function.
  
  
  CONCLUSIONS
  This case describes a rare late complication secondary to surgical treatment of an acetabular fracture. The anamnesis shows the clinical relevance of knowledge of the anatomical variation in the course of the sciatic nerve.
authors.affiliation: Medisch Centrum Haaglanden, Den Haag.
authors.forename: Godard C W
authors.initials: GC
authors.lastname: de Ruiter
authors.forename: Korné
authors.initials: K
authors.lastname: Jellema
authors.forename: Bas F
authors.initials: BF
authors.lastname: van de Kallen
authors.forename: Sven A
authors.initials: SA
authors.lastname: Meylaerts
mesh_terms: D000328:Adult; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D008297:Male; D009999:Ossification, Heterotopic / Q000150:complications* / Q000601:surgery; D059348:Peripheral Nerve Injuries / Q000209:etiology*; D010543:Peroneal Nerve / Q000293:injuries*; D011183:Postoperative Complications; D012584:Sciatic Nerve / Q000293:injuries*