Fracture Fixation and Implants

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: Suber J, Basinger RR.
Journal: Vet Comp Orthop Traumatol.

Interlocking nails have been shown to be an effective means to stabilise long bone fractures. When used in non-load sharing fracture repairs with minimal medullary canal filling, the authors noted instability of the main fracture fragments. The addition of multiple intramedullary pins in stack pin fashion eliminated the instability. ILN and ILN/SP constructs were loaded in four-point bending using an unstable osteotomy model. The gap between the ILN and ILN/SP groups was compared.

Authors: Troger JC, Viguier E.
Journal: Vet Comp Orthop Traumatol.

The use of the AO (Arbeitgemeinschaft für Osteosynthesenfragen) veterinary T-plates (1.5/2 mm and 2.7/3.5 mm) for stabilisation of supracotyloid ilial fractures in 18 cats and five dogs was evaluated in a retrospective study. The distal fragment from the coxofemoral joint ranged from 0.5 cm to 1 cm with a mean distance of 0.85 cm. Twenty out of 23 (87%) ilial fractures healed in original alignment.

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.

Authors: A.Guillemot, E. Asimus, F. Gilles, J.F.Vacher
Journal: EJCAP

This article presents a clinical case of a comminuted femoral fracture in a cat treated via closed reduction using a pin/VCP combination.