Fracture Fixation and Implants

Authors: Borer LR, Voss K, Montavon PM.
Journal: AJVR

Objective-To investigate a technique for repair of sacroiliac luxation with positional screw insertion from the ventral surface of the sacral wing via a ventral abdominal approach. Sample Population-Hemipelvis specimens from cadavers of 5 small- to large-breed dogs and 9 European shorthair cats. Procedures-An optimal entry point and a safe drill corridor for implant placement were determined (4 hemipelvis specimens). Anatomic landmarks were identified, and the surgical technique for a ventral abdominal approach was described.

Authors: Sheahan DE, Gillian TD.
Journal: JSAP

A six-year-old border collie was presented with a solid mass on the dorsal cranium. Histological examination showed the mass to be a multilobular tumour of bone. A magnetic resonance imaging scan confirmed deformation of the dorsal cranium with compression of the cerebral hemispheres. A craniotomy was performed to excise the mass and overlying skin, resulting in a substantial deficit of calvarium and skin. A cranioplasty using a small intestinal submucosal (SIS) graft was performed to reconstruct the calvarial defect.

Authors: Bongartz A, Carofiglio F, Piaia T, Balligand M.
Journal: JSAP

Traumatic partial elbow luxation (unilateral medial humeroulnar) was diagnosed in a 2.5-year-old crossbreed dog. Previous reports of traumatic elbow luxation in the dog described lateral and less frequently medial humeroradioulnar luxations. The treatment consisted of closed reduction of the affected joint under general anaesthesia. The functional outcome was excellent.

Authors: Risselada M, van Bree H, Kramer M, Chiers K, Duchateau L, Verleyen P.
Journal: JSAP

Objectives: To determine if there was histological correlation with ultrasonographic images of healed fractures and implant-associated tissue after fracture treatment by plate osteotomy. Methods: Eight adult dogs were included in this retrospective study. Ultrasonography (B-mode and power Doppler) and radiography were performed before plate removal. Surgical biopsies were taken of the fracture site and the tissue adjacent to the plate.

Authors: Carrera I, Hammond GJ, Sullivan M.
Journal: Vet Surg

OBJECTIVES: To describe computed tomographic (CT) features of canine elbows with incomplete ossification of the humeral condyle (IOHC) and investigate co-existing incongruence in the elbow joint. STUDY DESIGN: Case control study. ANIMALS: Dogs with IOHC (n=20; 38 elbows) and 25 normal elbows. METHODS: Elbows with IOHC and normal elbows were assessed by CT.

Authors: Bar-Am Y, Pollard RE, Kass PH, Verstraete FJ.
Journal: Vet Surg

OBJECTIVE: To compare the diagnostic yield of conventional radiographs and computed tomography (CT) images of the skulls of dogs and cats with maxillofacial trauma (MFT). STUDY DESIGN: Prospective study. ANIMALS: Dogs (n=9) and 15 cats with MFT.

Authors: Bernard F, Furneaux R, Adrega Da Silva C, Bardet JF.
Journal: Vet Comp Orthop Traumatol.

rhBMP-2 solution on a collagen sponge was placed along the diaphysis of an atrophicradius, which had a history of recurring fractures. Two months after rhBMP-2 treatment, new mineralized bone was present, which significantly increased the diameter of the radius and allowed the removal of the external skeletal fixator (ESF). Due to carpo-metacarpal joint compromise, a pancarpal arthrodesis was performed seven months later. At follow-up evaluation two years later the dog was only very mildly lame.

Authors: Rahal S, Otoni C, Pereira Júnior O, Blum A, Vulcano L.
Journal: Vet Comp Orthop Traumatol.

A Brazilian orthopaedic company designed a stainless steel plate called Synthesis Pengo System (S.P.S.), which has one fixed and one changeable extremity. According to the assembly of the changeable extremity, it is possible to obtain dynamization or neutralization of the fracture site. Since the S.P.S. plate was developed for use in human patients, the aim of this study was to evaluate this system in long-bone diaphyseal fractures in dogs.

Authors: Lauer S, Hosgood G, Ramirez S, Lopez M.
Journal: Vet Comp Orthop Traumatol.

Controlled mobilization after the surgical repair of multiple disrupted ligaments is considered to be essential for return to normal function. This study compared the outcome after post-surgical mobilization without any protection to mobilization with two transarticular external skeletal fixator hinge prototypes after surgical repair of experimental injuries to multiple stifle ligaments in 15 hounds.