Accuracy of correction of a hexapod frame, patient-specific osteotomy and reduction guides, and hinged circular external fixation in a 3D-printed canine antebrachial deformity model.

Objectives: This study aimed to objectively define whether human hexapod fixation (Maxframe), with or without the use of 3D-printed positioning guides, can correct a canine antebrachial deformity with greater accuracy than the clinically established techniques of 3D patient-specific osteotomy and reduction guides (3D-PSORG) or hinged circular external skeletal fixation (CESF).

Methods: CT of a canine antebrachium was manipulated to induce distal radial deformity of the valgus, external torsion, and procurvatum, each of magnitude 20. Five experiments were performed to correct the deformity via a distal radial and ulna opening osteotomy using: (1) A 3D-PSORG with the application of a locking plate, (2) hinged CESF, (3) Maxframe standard protocol, (4) Maxframe applied with patient-specific positioning guides (PSPGs), and (5) Maxframe with frame adjustment calculated from post-application CT.

Causes of thrombocytopenia in dogs in the United Kingdom: A retrospective study of 762 cases.

Background: Thrombocytopenia is a common laboratory abnormality in dogs, and numerous diseases have been associated with its development. Estimates for the sensitivity and specificity of the degree of reduction of platelet concentration for the diagnosis of primary immune-mediated thrombocytopenia (pITP) have not been reported.

Objectives: To report the prevalence of different causes of thrombocytopenia in dogs in the United Kingdom and to investigate the utility of platelet concentration to differentiate causes of thrombocytopenia.

Successful use of a benchtop fluorescent enzyme immunoassay analyzer to measure serum cortisol concentration as a screening test for hypoadrenocorticism in dogs.

Objective: To assess the diagnostic performance of a benchtop fluorescent enzyme immunoassay analyzer (AIA-360; Tosoh Bioscience Inc) for the measurement of serum cortisol concentration as a screening test for hypoadrenocorticism in dogs.

Animals: 173 client-owned dogs (20 with hypoadrenocorticism and 153 with nonadrenal illness).

Procedures: Medical records of all dogs that underwent an ACTH stimulation test between June 2015 and October 2019 were reviewed retrospectively.

Bone density of the humeral condyle in Labrador retrievers with medial coronoid process disease.

Objectives: To estimate, using CT imaging, differences in the regional bone density of the humeral condyle in Labrador retriever elbows with and without medial coronoid process disease.

Materials And Methods: The elbows of Labrador Retrievers that had undergone CT were reviewed. Scans were divided into three categories: elbows without medial coronoid process disease; elbows with medial coronoid process disease involving fragmentation of the radial incisure; elbows with medial coronoid process disease involving fragmentation of the medial coronoid apex.

MRI features of canine hemangiosarcoma affecting the central nervous system.

Hemangiosarcoma is the most common metastatic tumor involving the brain in dogs but detailed published descriptions of the magnetic resonance imaging (MRI) features are lacking. The objective of this multi-center, retrospective case series study was to describe MRI characteristics of canine hemangiosarcoma affecting the central nervous system (CNS). Medical records of seven referral institutions were retrospectively reviewed.

Serum anti-GM2 and anti-GalNAc-GD1a IgG antibodies are biomarkers for acute canine polyradiculoneuritis.

Objectives: A previous single-country pilot study indicated serum anti-GM2 and anti-GA1 anti-glycolipid antibodies as potential biomarkers for acute canine polyradiculoneuritis. This study aims to validate these findings in a large geographically heterogenous cohort.

Materials And Methods: Sera from 175 dogs clinically diagnosed with acute canine polyradiculoneuritis, 112 dogs with other peripheral nerve, cranial nerve or neuromuscular disorders and 226 neurologically normal dogs were screened for anti-glycolipid antibodies against 11 common glycolipid targets to determine the immunoglobulin G anti-glycolipid antibodies with the highest combined sensitivity and specificity for acute canine polyradiculoneuritis.

Clients' perception of referral and veterinary specialists in a U.K. small animal referral hospital.

Background: A 2011 RCVS report published following review of veterinary referral and specialisation suggested that the general public may have a lack of understanding of what constitutes specialisation. Our questionnaire study evaluated client understanding of the term 'Specialist' and the information obtained prior to referral.

Methods: Questionnaires were completed prior to consultation.

Intracranial meningioma in two coeval adult cats from the same litter.

Case Summary: In this report we describe the occurrence of intracranial meningioma in two adult cats from the same litter. The location of the meningioma varied: one tumour was at the level of the brainstem, and the other was affecting the temporal and piriform lobes. The cat with the brainstem meningioma was treated with radiotherapy and the littermate had a rostrotentorial craniectomy for tumour removal.

Paraneoplastic ganglioradiculoneuritis in a cat with a plasma cell tumour.

Case Summary: An 8-year-old neutered female domestic longhair cat was presented for investigation of a 48 h history of lethargy and pelvic limb ataxia. MRI of the spinal cord and vertebral column (C1 to sacrum) and brain was unremarkable. Lumbar cerebrospinal fluid analysis revealed pleocytosis and increased protein concentration.

Transversus abdominis muscle as a gastric or intestinal on-lay flap in two dogs and one cat.

Historically, omentalisation and serosal patching have been used to augment gastrointestinal wall defects or incisions where gastrointestinal viability is of concern. This report describes the novel use of a transversus abdominis muscle on-lay flap to augment and provide support to compromised intestine in three cases. The muscle flap was used to support: the ileum following reduction of an intussusception in a dog (case 1), the gastric wall following gastric strangulation, dilation and volvulus in a diaphragmatic rupture in a cat (case 2) and the jejunum following enterotomy and full-thickness ulcer resection with primary repair in a dog (case 3).

Clinical signs, MRI findings and outcome in dogs with peripheral vestibular disease: a retrospective study.

Background: Vestibular dysfunction is relatively common in dogs, with a prevalence of 0.08% reported in primary veterinary care in the UK. There are several studies investigating how to differentiate between peripheral and central vestibular disease but only limited information regarding the possible underlying causes for peripheral vestibular dysfunction in dogs.

Epileptic seizures triggered by eating in dogs.

Background: Seizures triggered by eating (STE) behavior are very rare in humans and have not been documented previously in dogs.

Objectives: To document the occurrence of STE in dogs and describe their clinical features.

Animals: Ten client-owned dogs with STE diagnosed at 5 European referral centers.

Diagnosis and management of lumbar spp. discospondylitis using intraoperative cytology and external stabilization in a dog with disseminated infection.

Background: Discospondylitis is an infection of the intervertebral disc and adjacent vertebral endplates. The infectious agent is most commonly a bacterial organism and fungal causes are uncommon.

Case Description: A 1.

Lateral Radial Head Subluxation as a Complication Following Proximal Ulnar Osteotomy or Ostectomy in Eight Dogs.

Objectives:  The aim of this study was to report the complication of lateral radial head subluxation following proximal ulnar osteotomy (PUOO) or proximal ulnar ostectomy (PUOE) in eight dogs.

Materials And Methods:  Case records and diagnostic imaging of dogs developing lateral radial head subluxation following PUOO ( = 7) or PUOE ( = 2) were retrospectively reviewed. Information pertaining to clinical history, signalment, presenting condition, lameness grade, diagnostic imaging and initial surgery details, postoperative complications and their management were retrieved.

Reliability of CT measurement of induced radioulnar step in dogs using a circle superimposition technique.

Objectives: To evaluate the reliability of CT measurement of canine elbow axial radioulnar congruence using a duplicated circle superimposition technique.

Materials And Methods: CT of six cadaveric canine elbows was performed following either: (1) placement of an external fixator on the radius with ostectomy and radial shortening of 1 to 5 mm; (2) radial lengthening of 1 to 5 mm using a radial lengthening system; or, (3) no axial length adjustment. Four observers, on two occasions, blinded to the amount of radial adjustment, placed a circle of best fit of the ulnar trochlear notch on a sagittal image that was duplicated and transposed to the articular contour of the radial head; then the axial distance between circles relative to the dorsal radius was measured.