Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T

OBJECTIVE:  The aim of this study was to perform gait analysis using a pressure-sensitive walkway in dogs submitted to high (total) or low amputation (partial) of one forelimb or hindlimb. STUDY DESIGN:  A total of 39 dogs met the inclusion criteria. The reasons for the amputations were motor vehicle accidents in 38 dogs and possible limb malformation in 1 dog. The amputee dogs were divided into four groups: G1 ( n  = 10)-high forelimb; G2 ( n  = 10)-low forelimb; G3 ( n  = 9)-high hindlimb; and G4 ( n  = 10)-low hindlimb...

OBJECTIVE:  The aim of this study was to evaluate the stress changes in the radii beneath the locking plates (LP) of dogs implanted with LP using finite element analysis (FEA). STUDY DESIGN:  The study included radii harvested from eight dogs. After computed tomography (CT) scans of the forelimb, the articular surface of the radius was fixed using resin. Material tests were conducted to identify the yield and fracture points and for verification with FEA...

OBJECTIVE:  The aim of this study was to determine if variations in Hounsfield units (HU) are present within the elbow between asymptomatic dogs of two breeds of dogs susceptible to elbow dysplasia. STUDY DESIGN:  Guide Dogs and Border Collies that presented for routine computed tomography (CT) screening for elbow dysplasia prior to breeding were evaluated. All dogs had no documented history of lameness. Dogs diagnosed with CT as being free of elbow dysplasia were included...

The aim of this study was to describe three dogs with permanent fibular nerve injury following tibial plateau levelling osteotomy (TPLO). Fibular nerve injury following TPLO led to atrophy of the cranial tibial muscle, absent hock flexion and a mild lameness. Fibular nerve injury was confirmed in one case with electrodiagnostics. All three cases had a drill tract in the same location, on the caudal aspect of the tibia, immediately distal to the tibial osteotomy. Permanent fibular nerve injury following TPLO occurred with a more caudally positioned plate and care should be taken when drilling the tibia from medial to lateral in the region described...

OBJECTIVE:  The aim of this study was to assess if the level of osteotomy (50 or 75% the length of the humerus), osteotomy angle (5, 10, or 20 degrees), direction of bone alteration (external rotational or medial opening wedge osteotomies), or orientation of osteotomy (perpendicular to the humeral long axis or perpendicular to the weight-bearing axis of the limb) affect pressure through the medial compartment of the elbow. STUDY DESIGN:  Humeral osteotomies were performed at 50 and 75% the length of the humerus on 12 canine cadaver thoracic limbs and patient-specific three-dimensional (3D) printed plates applied to induce the desired alteration...

INTRODUCTION:  Arthroscopy is a well-established diagnostic modality for various orthopaedic conditions in veterinary medicine. The aim of this study was to describe the relationship of canine shoulder arthroscopy portals to major muscular, ligamentous, and neurovascular structures for anatomical and safety considerations. MATERIALS AND METHODS:  Arthroscopic exploration of 20 adult canine cadaver shoulders was performed. Each shoulder region was dissected layer by layer to the level of the joint...

OBJECTIVE:  The aim of this study was to compare stiffness and strain of an in vitro fracture-gap model secured with a primary 3.5-mm locking compression plate (LCP) at three primary plate working lengths without and with an orthogonal 2.7-mm LCP. STUDY DESIGN:  Primary plate screw configurations modeled short working length (SWL), medium working length (MWL), and long working length (LWL) constructs. Construct stiffness with and without an orthogonal plate during nondestructive four-point bending and torsion, and plate surface strain measured during bending, was analyzed...

OBJECTIVE:  To report the inciting cause and configuration of humeral condylar fractures in French Bulldogs, and to identify risk factors for complications associated with their surgical stabilization, as well as their occurrence. STUDY DESIGN:  Retrospective multicenter clinical cohort study. ANIMALS:  French bulldogs ( n  = 136) with humeral condylar fracture. METHODS:  Records from eight United Kingdom referral centers were reviewed for French bulldogs that underwent surgery for humeral condylar fracture between January 2017 and January 2021...

OBJECTIVE:  The aim of this study was to provide normative ultrashort echo time magnetic resonance imaging (UTE MRI) data of the patellar ligament (PL), cranial cruciate ligament (CrCL) and caudal cruciate ligament (CdCL) in non-lame Beagles. STUDY DESIGN:  Eight stifles from four subjects obtained immediately postmortem were imaged using UTE MRI in the true sagittal plane. Regions of interest were drawn manually and the total (T2*), short T2* (T2*S) and long T2* (T2*L) values of the signal decay were calculated to evaluate the bound and free water components of the tendon...

OBJECTIVE:  Surgical stabilization to treat fractures, luxations, and congenital malformations in the thoracic spine can be difficult due to its unique anatomy and surrounding structures. Our objective was to document the morphometrics of the thoracic vertebrae relating to an ideal trajectory for dorsolateral implant placement in a variety of dog sizes and to assess proximity to important adjacent critical anatomical structures using computed tomography (CT) studies. STUDY DESIGN:  Medical records for 30 dogs with thoracic CT were evaluated...

No abstract text is available yet for this article.

OBJECTIVE:  The aim of this study was to examine the position of the proximal manica flexoria and the proximal scutum under different grades of fetlock joint extension and to describe measurements and compare findings between equine fore- and hindlimbs. STUDY DESIGN:  It was an observational study. RESULTS:  During fetlock joint extension, the proximal manica flexoria and the proximal scutum displace distally relative to the palmar/plantar extent of the sagittal ridge of the cannon bone...

A 4-year-old female spayed French bulldog was presented with a 2-day history of neck pain and left thoracic limb lameness with no neurological deficits. A computed tomography (CT) examination showed a left foraminal T1-2 disc extrusion. Surgical management was performed using a left lateral approach to the vertebral column with a scapular osteotomy. A T1-2 mini-hemilaminectomy was performed. The scapular osteotomy was stabilized with two 2.4-mm locking compression plates. The postoperative CT and radiographic examinations showed adequate decompression of the T1-2 foramen and good reduction in the scapular osteotomy...

OBJECTIVES:  The aim of this study was to evaluate and characterize different methods to achieve interfragmentary compression during tibial plateau levelling osteotomy (TPLO). STUDY DESIGN:  TPLO was performed in 20 canine tibia models (Sawbones, Vashon, Washington, United States) using 3D-printed guides for standardization. Interfragmentary compression was assessed using pressure-sensitive films (Prescale, Fujifilm, Atherstone, United Kingdom). Seven compression methods were tested: (1) Kern bone holding forceps clamping the craniodistal aspect of the TPLO plate to the caudal aspect of the tibia (K); (2) using the distal TPLO plate dynamic compression hole (P); (3) pointed bone reduction forceps engaging the caudal aspect of the proximal bone fragment and the cranial aspect of the tibial crest (F); (4) K + P; (5) K + F; (6) F + P; and (7) K + F + P...

OBJECTIVE:  The aim of this study was to report postoperative complications and long-term outcomes following transcondylar screw placement for humeral intracondylar fissure (HIF). STUDY DESIGN:  It was a retrospective single-centre case series. Medical records (2018-2022) were reviewed for dogs with HIF treated with transcondylar screw placement. Data collected included signalment, concurrent orthopaedic disease, partial or complete HIF, surgeon, surgical approach, surgical technique and implant type, transcondylar screw angulation, postoperative complications and outcomes...

No abstract text is available yet for this article.

OBJECTIVE:  The aim of this study was to analyse a series of five cases of early surgical treatment in juvenile canine patients with high-grade medial patellar luxation. STUDY DESIGN:  Canine patients, with immature skeleton, affected by grade III or IV medial patellar luxation and treated by multimodal surgical techniques were selected. RESULTS:  Five dogs of different breeds, mean age 7.2 ± 3.0 months, met the inclusion criteria...

OBJECTIVE:  The aim of this study was to assess the impact of a tactical harness on three-dimensional motion of the thoracic limb in dogs. ANIMALS:  Five adult mixed-breed dogs (age: 4-6 years, weight: 25-35 kg) were used in this study. METHODS:  Custom-fit tactical harnesses were applied to each dog and 19 retroreflective skin markers were used to determine three-dimensional joint motion during dynamic motion, with and without the harness...

OBJECTIVE:  The aim of this study was to assess the outcome of arthroscopic subtotal coronoidectomy in treating medial coronoid disease and the effect of concurrent autologous conditioned plasma (ACP) in dogs using force plate analysis. STUDY DESIGN:  This study included 16 dogs with unilateral medial coronoid disease based on computed tomographic imaging. Treatment consisted of an arthroscopic subtotal coronoidectomy. As concurrent therapy, eight dogs received ACP at the end of the arthroscopy and eight dogs a placebo...

OBJECTIVE:  The aim of this study was to use computed tomography (CT) images obtained from English springer spaniels (ESS) with different sizes of humeral intracondylar fissure (HIF) to describe the typical shape, origin and a possible propagation pattern of HIF in this breed. STUDY DESIGN:  It is a retrospective analysis of 32 elbow CT from 27 ESS with incomplete HIF. Measurements included HIF articular surface length, centre of HIF at articular surface relative to the caudal edge of the supratrochlear foramen (CHIF), HIF depth and sagittal area of fissure...