title: Use of computed tomography to compare two femoral head and neck excision ostectomy techniques as performed by two novice veterinarians.
abstract: OBJECTIVE
  To compare the results of femoral head and neck excision (FHNE) ostectomy performed by two novice veterinarians using an osteotome and mallet or microsagittal saw.
  
  
  METHODS
  In this ex vivo cadaveric study, hindlimbs of eight canine cadavers were randomized to FHNE with osteotome or micro sagittal saw as performed by two recently graduated veterinarians. The hindimbs were imaged by computed tomography (CT) before and after the osteotomy. Post FHNE CT images were evaluated by a board certified radiologist blinded to the ostectomy technique for assessment of the number of bone fragments, fissures, smoothness of osteotomy margination, and volume of residual femoral neck.
  
  
  RESULTS
  Femoral head and neck excision performed with the osteotome produced more peri-ostectomy bone fragments, cortical fissures, irregular margins, and residual femoral neck volume, compared with osteotomy using a saw.
  
  
  CONCLUSIONS
  Compared to FHNE performed with a sagittal saw, osteotome FHNE resulted in a greater bone trauma and residual neck bone volume, which would require post-ostectomy modification in a clinical setting.
authors.forename: M D
authors.initials: MD
authors.lastname: O'Donnell
authors.affiliation: Jennifer Warnock, DVM, PhD, DACVS, Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, 700 SW 30th St., Corvallis OR 97331, United States, Phone: +1 541 737 4812, Fax: +1 541 737 4840, E-mail: jennifer.warnock@oregonstate.edu.
authors.forename: J J
authors.initials: JJ
authors.lastname: Warnock
authors.forename: G
authors.initials: G
authors.lastname: Bobe
authors.forename: R P
authors.initials: RP
authors.lastname: Scholz
authors.forename: J E
authors.initials: JE
authors.lastname: Wiest
authors.forename: S
authors.initials: S
authors.lastname: Nemanic
mesh_terms: D000818:Animals; D004285:Dogs / Q000601:surgery*; D005270:Femur Head / Q000000981:diagnostic imaging / Q000601:surgery*; D005272:Femur Neck / Q000000981:diagnostic imaging / Q000601:surgery*; D010027:Osteotomy / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D016879:Salvage Therapy / Q000662:veterinary; D013525:Surgical Instruments / Q000662:veterinary; D014057:Tomography, X-Ray Computed / Q000662:veterinary
keywords: Computed tomography; coxofemoral joint; femoral head and neck excision; osteotome; sagittal saw