Hock

OBJECTIVE: To estimate the prevalence of complications and describe the outcome associated with calcaneal fractures in non-racing dogs and in cats.

STUDY DESIGN: Retrospective multicenter clinical cohort study.

ANIMALS: Medical records of client-owned dogs and cats (2004-2013).

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.

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.

OBJECTIVES: To describe the normal anatomy of the soft tissues of the canine tarsus as identified on computed tomography (CT) and magnetic resonance imaging (MRI) and to evaluate specific MRI sequences and planes for observing structures of diagnostic interest.

STUDY DESIGN: Prospective descriptive study.

ANIMALS: Canine cadavers (n = 3).

Authors: Kornmayer M1, Amort K, Failing K, Kramer M.
Journal: VCOT

OBJECTIVES:

To compare radiography and computed tomography (CT) for the evaluation of medullary cavity diameters of metacarpal and metatarsal bones in cats and to analyse their correlation with intramedullary pin size.

METHODS:

Category: Hock - Imaging
Authors: Benlloch-Gonzalez M1, Grapperon-Mathis M, Bouvy B.
Journal: VCOT

OBJECTIVE:

Describe optimal corridors for mediolateral or lateromedial implant placement in the feline tarsus and base of the metatarsus.

METHODS:

Computed tomographic images of 20 cadaveric tarsi were used to define optimal talocalcaneal, centroquartal, distal tarsal, and metatarsal corridors characterized by medial and lateral insertion points (IP), mean height, width, length and optimal dorsomedial-plantarolateral implantation angle (OIA).

RESULTS:

Authors: Walton MB1, Mardell E, Spoor M, Innes J.
Journal: VCOT

A four-year-old, male Cocker Spaniel was presented for investigation of pelvic limb stiffness. There was palpable effusion of both tarsi, and analysis of synovial fluid from these joints indicated previous haemorrhage. After further investigation a diagnosis of idiopathic immune-mediated thrombocytopenia was made. The dog responded to treatment with prednisolone and azathioprine. To the authors' knowledge, this is the first reported case of confirmed haemarthrosis as the sole presenting clinical sign for canine idiopathic immune-mediated thrombocytopenia.

Category: Biologics - Hock
Authors: Rodriguez-Quiros J1, Rovesti GL, Devesa V, Urrutia PG, Roman FS.
Journal: JSAP

OBJECTIVE:
To evaluate the technical feasibility, efficacy and potential soft tissue damage of a joint distraction technique to facilitate arthroscopy of the tibio-tarsal joint and to test the effect of joint venting on the maximum distraction achieved.
METHODS:

Category: Arthroscopy - Hock
Authors: Barnes DC, Knudsen CS, Gosling M, McKee M, Whitelock RG, Arthurs GI, Ness MG, Radke H, Langley-Hobbs SJ
Journal: VCOT

Objective: To compare complication rates and the outcomes of these complications after lateral plate fixation with figure-of-eight tension-band-wire and pin or lag screw fixation for arthrodesis of the calcaneo-quartal joint, following non-traumatic disruption of the plantar tarsal ligament in dogs. Methods: Data were collected retrospectively from five UK referral centres. Diplomate specialists and their residents performed all procedures. Referring veterinarians were contacted for long-term follow-up. Results: Seventy-four procedures were undertaken in 61 dogs.

Authors: Ellison M, Kobayashi H, Delaney F, Danielson K, Vanderby R Jr, Muir P, Forrest LJ.
Journal: Vet Radiol Ultrasound

B-mode ultrasound is an established imaging modality for evaluating canine tendon injury. However, full extent of tendon injury often remains difficult to estimate, as small changes in sonographic appearance are associated with large changes in biomechanical strength. The acoustoelastic strain gauge (ASG) is an ultrasound-based tissue evaluation technique that relates the change in echo intensity observed during relaxation or stretching of tendons to the tissue's mechanical properties.