Fracture Fixation and Implants

OBJECTIVE: To compare accuracy and consistency of sacral screw placement in canine pelves treated for sacroiliac luxation with open reduction and internal fixation (ORIF) or minimally invasive osteosynthesis (MIO) techniques.

OBJECTIVE: To report our experience with the use of contoured mini circular transarticular external skeletal fixators for the management of traumatic tarsal luxations in 15 cats.

BACKGROUND: Hybrid external fixation (HEF) is an emerging technique for fracture stabilization in veterinary orthopedics, but its use has been reported in few papers in the veterinary literature. The linear and circular elements that form hybrid fixators can be connected in a very high number of combinations, and for this reason just referring to HEF without any classification is often misleading about the actual frame structure.

OBJECTIVE: To describe traumatic fracture of the medial coronoid process in dogs as a clinically distinct disease unrelated to congenital elbow dysplasia.

OBJECTIVE: Evaluate the effects of supplemental fixation elements on the mechanical properties of a single ring circular fixator construct.

STUDY DESIGN: In vitro mechanical testing.

SAMPLE POPULATION: Five construct configurations (six replicates of each configuration) were used to stabilize a 1.6 cm diameter Delrin rod bone model.

OBJECTIVE: To compare the biomechanical behavior of mandibular critical-sized defects stabilized with 2 plating configurations under in vitro conditions resembling clinical situations.

SAMPLE: 24 mandibles harvested from 12 adult canine cadavers.

OBJECTIVE: To compare the biomechanical properties of locking compression plate (LCP) and a limited contact dynamic compression plate combined with an intramedullary rod (LC-DCP-R) in a cadaveric, canine, femoral fracture-gap model.

STUDY DESIGN: In vitro biomechanical study; nonrandomized, complete block (dog).

SAMPLE POPULATION: Paired cadaveric canine femora (n = 10 dogs).

OBJECTIVE: To compare the biomechanical properties of dual bone fixation (DBF) constructs to radial locking compression plating (LCP) in an ex vivo feline antebrachial fracture gap model.

STUDY DESIGN: Ex vivo study.

SAMPLE POPULATION: Cadaveric feline antebrachii (n=12 pairs).

OBJECTIVE: To compare the stiffness, angular deformation, and mode of failure of lumbar vertebral column constructs stabilized with bilateral pins and polymethylmethacrylate (Pin-PMMA) or with a unilateral (left) locking compression plate (LCP) with monocortical screws.

STUDY DESIGN: Ex vivo biomechanical, non-randomized.

SAMPLES: Cadaveric canine thoracolumbar specimens (n=16).

Fracture of the central tarsal bone is an uncommon injury in dogs and occurs predominantly in racing Greyhounds. To the authors' knowledge, this type of fracture has not been described previously in cats.

This case report describes a five-year-old Domestic Shorthair cat referred to the Centro Veterinario Luni Mare because of lameness, swelling and signs of pain in the right hindlimb caused by trauma. Clinical examination and diagnostic imaging revealed a right central tarsal bone fracture.