title: Standing placement of transphyseal screw in the distal radius in 8 Thoroughbred yearlings.
abstract: This retrospective study describes placement of distal radial transphyseal screws in Thoroughbred yearlings with carpal varus deformities while standing, and identifes short- and long-term complications following the procedure. Data gathered from 2009 to 2013 identified 8 yearlings that met the inclusion criteria. Horses were sedated intravenously and a single 4.5-mm cortical screw was placed in the distal lateral radial physis following application of local anesthetic and surgical preparation of a pre-placed hole. All horses were evaluated weekly after surgery and screw removal was performed standing and under sedation when correction of the angular limb deformity was achieved. The mean time for screw removal was 46 days. No short- or long-term complications were identified. Findings indicate that placing a single transphyseal screw in the lateral aspect of the distal radial physis with the horse standing is a viable option to treat varus angular limb deformity of the carpus in horses.
authors.affiliation: Veterinary Population Medicine, University of Minnesota, Saint Paul, Minnesota 55108, USA (Modesto); Hagyard Equine Medical Institute, Davidson Surgery, Lexington, Kentucky, USA (Rodgerson, Spirito); Department of Large Animal Clinical Sciences, Texas A&M University, College Station, Texas, USA (Masciarelli).
authors.forename: Rolf B
authors.initials: RB
authors.lastname: Modesto
authors.affiliation: Veterinary Population Medicine, University of Minnesota, Saint Paul, Minnesota 55108, USA (Modesto); Hagyard Equine Medical Institute, Davidson Surgery, Lexington, Kentucky, USA (Rodgerson, Spirito); Department of Large Animal Clinical Sciences, Texas A&M University, College Station, Texas, USA (Masciarelli).
authors.forename: Dwayne H
authors.initials: DH
authors.lastname: Rodgerson
authors.affiliation: Veterinary Population Medicine, University of Minnesota, Saint Paul, Minnesota 55108, USA (Modesto); Hagyard Equine Medical Institute, Davidson Surgery, Lexington, Kentucky, USA (Rodgerson, Spirito); Department of Large Animal Clinical Sciences, Texas A&M University, College Station, Texas, USA (Masciarelli).
authors.forename: Amanda E
authors.initials: AE
authors.lastname: Masciarelli
authors.affiliation: Veterinary Population Medicine, University of Minnesota, Saint Paul, Minnesota 55108, USA (Modesto); Hagyard Equine Medical Institute, Davidson Surgery, Lexington, Kentucky, USA (Rodgerson, Spirito); Department of Large Animal Clinical Sciences, Texas A&M University, College Station, Texas, USA (Masciarelli).
authors.forename: Michael
authors.initials: M
authors.lastname: Spirito
mesh_terms: D000818:Animals; D001863:Bone Screws / Q000662:veterinary*; D050824:Carpal Joints / Q000002:abnormalities / Q000601:surgery; D005260:Female; D005552:Forelimb / Q000473:pathology; D006734:Horse Diseases / Q000151:congenital* / Q000601:surgery; D006736:Horses; D017880:Limb Deformities, Congenital / Q000601:surgery / Q000662:veterinary*; D008297:Male; D019637:Orthopedic Procedures / Q000009:adverse effects / Q000662:veterinary*; D011183:Postoperative Complications / Q000662:veterinary; D012189:Retrospective Studies