Fracture Fixation and Implants

Authors: Danielle M Marturello, Dirsko J F von Pfeil, Loïc M Déjardin

Objective: The aim of this study was to (1) evaluate bending structural properties of a machined short fibre epoxy (SFE) feline bone surrogate (FBS), (2) compare the bending behaviour of small angle-stable interlocking nails (I-Loc; Targon) and locking compression plates (LCP) and (3) evaluate the effect of implant removal on FBS bending strength.

Authors: Guy Bird, Mark Glyde, Giselle Hosgood, Alex Hayes, Robert Day

Objective: This investigation compared the biomechanical properties of a 2.0 mm locking compression notched head T-plate (NHTP) and 2.0 mm straight locking compression plate (LCP), in a simple transverse juxta-articular fracture model.

Authors: Dirsko J F von Pfeil, Sara Megliolia, Sarah Malek, Mark Rochat, Mathieu Glassman

Objective: The aim of this study was to report the clinical experience with fluoroscopically guided tibial apophyseal percutaneous pinning (TAPP) for tibial tuberosity avulsion fractures (TTAF).

Study design: This is a retrospective case series.

Authors: Tim G Easter, Jonathan J Pink, Bill Oxley, Alexis Bilmont

Objective: The aim of this study was to report the surgical technique and outcomes of dogs with type V central tarsal bone (CTB) fractures stabilized with a bone plate applied to the medial aspect of the tarsus and metatarsus.

Authors: Sarah Castaldo, Jason Syrcle, Steve Elder, Robert W Wills

Objective: Successful stabilization of comminuted supracondylar humeral fractures is challenging, and biomechanical studies are scarce. This study compares double-plate (DB-PLATE) and linear external fixator with an intramedullary pin tie-in (ESF-IMP) fixation techniques in a cadaveric gap model. The hypothesis was the DB-PLATE construct would be stiffer, stronger and more resistant to repeated loading than the ESF-IMP construct in both cyclic and load-to-failure axial compression testing.

Authors: Hey-Jin Jung, Aram Jang, Hyeong-Jun Yim, Chang-Hoon Han, Jae-Hoon Lee

Objective: The aim of this study was to determine the effect of insertion torque and angulation on the push-out strength of screws in Atraumatic Rigid Fixation (ARIX) system.

Authors: M B Walton, E Crystal, S Morrison, J Onyett, J McClement, R Allan, M Straw, J F Innes

Objectives: To report complications, clinical outcomes and CT-imaging outcomes of a surgical system designed for the management of humeral intracondylar fissures and humeral condylar fractures.

Materials and methods: Retrospective review of fracture healing from medical records, direct owner contact and an online data-submission service. Follow-up included CT scans and a calculated "bone-opacity continuity index" to quantify bone healing.

Authors: Elena Carbonell Buj, Neil Burton, John R Mosley, Richard L Meeson, Alison Major, Richard G Whitelock, Kevin Parsons , Sorrel J Langley-Hobbs

Objective: The aim of this retrospective multicentre case series was to describe signalment, presenting signs and imaging findings in dogs with isolated articular fractures of the talus.

Study design: Medical records (2008-2019) of dogs with isolated articular talar fractures were reviewed.

Authors: Francisco Silveira, Isobel C Monotti, Anna M Cronin, Nick J Macdonald, Scott Rutherford, Kornelia Tiffinger, Ian Faux, Javier Rincon-Alvarez, Elvin Kulendra, Francesca Tavola, Bruno Santos, Neil J Burton

Signalment, clinical features, fixation techniques, complications, and outcome for dogs presenting with distal diaphyseal and supracondylar femoral fractures were retrospectively reviewed.

A total of 45 dogs with unilateral femoral fractures were included. Supracondylar femoral plates were the most popular method of fixation. However, various fixation techniques resulted in favorable outcomes in most dogs with 19/45 cases achieving full function and 22/45 achieving acceptable function.

Authors: Peter Schwarzenberg, Karina Klein, Stephen J Ferguson, Brigitte von Rechenberg, Salim Darwiche, Hannah L Dailey

Finite element analysis with models derived from computed tomography (CT) scans is potentially powerful as a translational research tool because it can achieve what animal studies and cadaver biomechanics cannot-low-risk, noninvasive, objective assessment of outcomes in living humans who have actually experienced the injury, or treatment being studied.