title: Computed tomography or magnetic resonance imaging-assisted partial hoof wall resection for keratoma removal.
abstract: OBJECTIVE
  To (1) describe the computed tomography (CT) and magnetic resonance imaging (MRI) appearance of keratomas; (2) describe a CT- or MRI-assisted partial hoof wall resection technique for removal of keratomas; and (3) evaluate the morbidity and postoperative outcome of these horses.
  
  
  METHODS
  Case series.
  
  
  METHODS
  Horses (n=10) with keratoma.
  
  
  METHODS
  Data retrieved from medical records included signalment, lameness duration and grade, physical and diagnostic evaluation findings, CT and MRI technique and findings, surgical details, histopathologic diagnosis, postoperative treatment, and complications experienced. Long-term outcome was obtained by telephone interviews of owners.
  
  
  RESULTS
  Complications including excessive granulation tissue formation and infection were seen in 2 horses (20%). No keratoma recurrence occurred. Follow-up information was available for 8 horses; 7 were sound and had resumed work. Mean time until they became sound was 2.7 months, and mean time until work resumed was 3.6 months.
  
  
  CONCLUSIONS
  CT and MRI can be used to accurately identify the location of keratomas. Postoperative complications may be decreased by creating smaller hoof wall defects, filling the defects with antimicrobial-impregnated polymethylmethacrylate, and placing a shoe early in the postoperative period.
authors.affiliation: Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, PA 19348, USA. libertygetman@gmail.com
authors.forename: Liberty M
authors.initials: LM
authors.lastname: Getman
authors.forename: Elizabeth J
authors.initials: EJ
authors.lastname: Davidson
authors.forename: Michael W
authors.initials: MW
authors.lastname: Ross
authors.forename: Midge
authors.initials: M
authors.lastname: Leitch
authors.forename: Dean W
authors.initials: DW
authors.lastname: Richardson
mesh_terms: D000818:Animals; D005260:Female; D006724:Hoof and Claw / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006734:Horse Diseases / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006736:Horses; D007642:Keratosis / Q000000981:diagnostic imaging / Q000601:surgery / Q000662:veterinary*; D008279:Magnetic Resonance Imaging / Q000662:veterinary*; D008297:Male; D011183:Postoperative Complications / Q000473:pathology / Q000662:veterinary; D013514:Surgical Procedures, Operative / Q000379:methods / Q000662:veterinary*; D014057:Tomography, X-Ray Computed / Q000662:veterinary*; D016896:Treatment Outcome