title: Axial correction of pes varus by transverse-opening wedge osteotomy and T-plate fixation with beta-tricalcium phosphate (beta-TCP) transplantation in dachshunds.
abstract: Axial correction was performed surgically in two miniature dachshunds presenting with lateral patellar dislocation and limping caused by pes varus. Pes varus had resulted from asymmetric closure of the physis of the distal tibia. Prior to surgery, osteotomy was simulated by measuring X-ray films to determine the distance required for the wedge opening. Transverse-opening wedge osteotomy was performed on the medial side of the distal tibia, and beta-tricalcium phosphate (beta-TCP) was inserted in a wedge shape into the area created by the cuneiform osteotomy. Finally, the tibia was fixed by a veterinary 1.5/2.0-mm T-plate. Both dogs were able to walk a few days after surgery, and the lateral dislocation of the patella normalized almost completely in about one month. At two months, X-ray films showed that the implant had remained in position without any dislocation, and the beta-TCP had fused with the surrounding bone.
authors.affiliation: Department of Veterinary Surgery 1, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Izumisawa
authors.forename: Takahiro
authors.initials: T
authors.lastname: Seno
authors.forename: Reona
authors.initials: R
authors.lastname: Abe
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Miyoshi
authors.forename: Seiya
authors.initials: S
authors.lastname: Maehara
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Wakaiki
authors.forename: Tokiko
authors.initials: T
authors.lastname: Kushiro
authors.forename: Mohammed Ahmed
authors.initials: MA
authors.lastname: Umar
authors.forename: Keiko
authors.initials: K
authors.lastname: Tsuzuki
authors.forename: Kazuto
authors.initials: K
authors.lastname: Yamashita
authors.forename: Shigeru
authors.initials: S
authors.lastname: Hayashi
mesh_terms: D000818:Animals; D001860:Bone Plates / Q000662:veterinary*; D002130:Calcium Phosphates / Q000627:therapeutic use*; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D038061:Lower Extremity Deformities, Congenital / Q000601:surgery / Q000662:veterinary*; D010027:Osteotomy / Q000379:methods / Q000662:veterinary*; D011859:Radiography; D013977:Tibia / Q000000981:diagnostic imaging / Q000601:surgery*
chemical_list: D002130:Calcium Phosphates; C485817:beta-tricalcium phosphate