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Three-dimensional computer-assisted corrective osteotomy with a patient-specific surgical guide for an antebrachial limb deformity in two dogs


Longo, Francesco; Penelas, Alexandra; Gutbrod, Andreas; Pozzi, Antonio (2019). Three-dimensional computer-assisted corrective osteotomy with a patient-specific surgical guide for an antebrachial limb deformity in two dogs. Schweizer Archiv für Tierheilkunde, 161(7/8):473-479.

Abstract

We describe patient-specific surgical guide prototyping and surgical treatment of a complex antebrachial deformity in two skeletally mature dogs presenting with chronic lameness. Computer-assisted surgery was elected to increase accuracy in the correction of the complexity deformity.
Radiographs and CT scans revealed a biplane deformity with valgus, procurvatum and external torsion of the right radius in both cases. The pre-surgical planning started from the quantification of the angular deformity, computer simulated correction to end up with a rehearsal surgery on 3D printed bone models. During the surgery, the custom-made osteotomy guides closely fitted the bone, allowing for a precise corrective osteotomy, that was stabilized with two locking plates. Postoperative x-rays showed successful correction of the deformity. At the follow up recheck examinations at 8 and 12 weeks postoperatively the dogs had improved lameness, weight-bearing and progression of bone healing were observed in both dogs.
Patient-specific surgical guides allowed for a satisfactory correction of the antebrachial deformity. Additional benefits of using customized surgical devices include standardization and reduced surgical time.

Abstract

We describe patient-specific surgical guide prototyping and surgical treatment of a complex antebrachial deformity in two skeletally mature dogs presenting with chronic lameness. Computer-assisted surgery was elected to increase accuracy in the correction of the complexity deformity.
Radiographs and CT scans revealed a biplane deformity with valgus, procurvatum and external torsion of the right radius in both cases. The pre-surgical planning started from the quantification of the angular deformity, computer simulated correction to end up with a rehearsal surgery on 3D printed bone models. During the surgery, the custom-made osteotomy guides closely fitted the bone, allowing for a precise corrective osteotomy, that was stabilized with two locking plates. Postoperative x-rays showed successful correction of the deformity. At the follow up recheck examinations at 8 and 12 weeks postoperatively the dogs had improved lameness, weight-bearing and progression of bone healing were observed in both dogs.
Patient-specific surgical guides allowed for a satisfactory correction of the antebrachial deformity. Additional benefits of using customized surgical devices include standardization and reduced surgical time.

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Additional indexing

Other titles:Dreidimensionale computerunterstützte Korrekturosteotomie mit einer patientenspezifischen chirurgischen Schablone bei zwei Hunden mit antebrachiellen Deformitäten
Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Uncontrolled Keywords:bone deformity, computer-assisted surgery, dogs, patient specific surgical guides, rehearsal surgery
Language:English
Date:2019
Deposited On:11 Jul 2019 11:57
Last Modified:11 Jul 2019 11:57
Publisher:Gesellschaft Schweizer Tierärztinnen und Tierärzte
ISSN:0036-7281
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.17236/sat00216

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