title: Interprosthetic humeral fracture revision using a tibial allograft total elbow prosthetic composite in a patient with hemophilia A : a case report.
abstract: BACKGROUND
  Interprosthetic fractures of the humerus are rare. Revisions of total elbow arthroplasty components in these cases are difficult. We report the first case of a patient with hemophilia who underwent a revision with a tibial allograft prosthetic composite without the need for hardware augmentation.
  
  
  METHODS
  A 43-year-old Caucasian man with a history of hemophilia and transfusion-related human immunodeficiency virus and hepatitis B and C presented with an interprosthetic fracture of his humerus after months of pain between his total elbow and total shoulder arthroplasties. Because of the poor remaining bone stock available in his distal humerus, a revision using a barrel-staved tibial allograft prosthetic composite was performed. Our patients' factor VIII level was optimized before the operation and he suffered no major long-term complications at 28 months. His only complication was an incomplete radial nerve palsy that ultimately recovered and left him with some numbness on the dorsum of his hand.
  
  
  CONCLUSIONS
  Careful use of an allograft prosthetic composite is a very reasonable option when a patient experiences an interprosthetic fracture. We have successfully performed revision total elbow arthroplasty for a patient with hemophilia with an interprosthetic fracture using a tibial allograft and no additional fixation, which resulted in his return to full activities of daily living, minimal pain and full incorporation of the allograft to host bone.
authors.affiliation: Department of Surgery, Section of Orthopedic Surgery, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada. hildebrk@ucalgary.ca.
authors.forename: Justin
authors.initials: J
authors.lastname: Leblanc
authors.forename: Shannon
authors.initials: S
authors.lastname: Puloski
authors.forename: Kevin
authors.initials: K
authors.lastname: Hildebrand