title: Dysplasia Epiphysealis Hemimelica Treated with Osteochondral Allograft: A Case Report.
abstract: BACKGROUND
  Dysplasia epiphysealis hemimelica (DEH), or Trevor's disease, is a developmental disorder of the pediatric skeleton characterized by asymmetric osteochondral overgrowth.
  
  
  METHODS
  We present the case of a five year old boy with a two year history of right knee pain and evidence of DEH on imaging who underwent initial arthroscopic resection of his lesion with subsequent recurrence. The patient then underwent osteochondral allograft revision surgery and was asymptomatic at two year follow-up with a congruent joint surface.
  
  
  RESULTS
  To our knowledge, this is the first reported case of a DEH lesion treated with osteochondral allograft and also the youngest reported case of osteochondral allograft placement in the literature.
  
  
  CONCLUSIONS
  Osteochondral allograft may be a viable option in DEH and other deformities of the pediatric knee.
  
  
  METHODS
  Level V.
authors.affiliation: The Department of Orthopaedic Surgery and Rehabilitation, University of Iowa Hospitals and Clinics , 200 Hawkins Drive, 01008 JPP, Iowa City, IA 52242 , USA.
authors.forename: Chris A
authors.initials: CA
authors.lastname: Anthony
authors.affiliation: The Department of Orthopaedic Surgery and Rehabilitation, University of Iowa Hospitals and Clinics , 200 Hawkins Drive, 01008 JPP, Iowa City, IA 52242 , USA.
authors.forename: Brian R
authors.initials: BR
authors.lastname: Wolf
mesh_terms: D064591:Allografts; D018771:Arthralgia / Q000175:diagnosis / Q000209:etiology; D001182:Arthroscopy / Q000379:methods; D001848:Bone Diseases, Developmental / Q000175:diagnosis* / Q000601:surgery*; D016025:Bone Transplantation / Q000379:methods*; D002356:Cartilage / Q000637:transplantation*; D002675:Child, Preschool; D005269:Femur / Q000002:abnormalities* / Q000601:surgery; D005500:Follow-Up Studies; D006085:Graft Survival; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D010147:Pain Measurement; D012720:Severity of Illness Index; D013977:Tibia / Q000002:abnormalities* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome