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Veterinary and Comparative Orthopaedics and Traumatology
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0932-0814 - ISSN (Online) 2567-6911
Published by Thieme Publishing Group Homepage  [233 journals]
  • The Valued Contributions of Young Investigators to Veterinary Orthopaedic
           Research

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      Vet Comp Orthop Traumatol 2022; 35: v-v
      DOI: 10.1055/s-0042-1744433



      Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany

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      Inhaltsverzeichnis     Volltext

      Vet Comp Orthop Traumatol 2022; 35: v-v2022-03-10T00:00:00+0100
      Issue No: Vol. 35, No. 02 (2022)
       
  • Excessive Tibial Plateau Angle Correction Diminishes Cruciate Degeneration

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      Vet Comp Orthop Traumatol 2022; 35: v-v
      DOI: 10.1055/s-0041-1742162



      Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany

      Artikel in Thieme eJournals:
      Inhaltsverzeichnis     Volltext

      Vet Comp Orthop Traumatol 2022; 35: v-v2022-01-18T00:00:00+0100
      Issue No: Vol. 35, No. 01 (2022)
       
  • Contrast-Enhanced Low-Field MRI Occasionally Alters the Surgical Approach
           for Canine Intervertebral Disc Extrusions

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      Authors: Craciun; Ioana, Khan, Sam, Hughes, Jonathan, Freeman, Paul
      Abstract: Objectives The aim of this study was to describe how the addition of contrast-enhanced low-field magnetic resonance imaging sequences can confirm or change the initially planned surgical approach for canine intervertebral disc extrusions. Study Design Magnetic resonance imagings of 20 dogs diagnosed with intervertebral disc extrusions were retrospectively reviewed by a board-certified neurologist for the location of extradural disc material, contrast enhancement, and whether enhancement reinforced or changed the initially planned surgical approach. Results Extradural compressive material contrast-enhanced in 17/20 dogs. In 14/20 dogs, enhancement was considered to increase the confidence level of the location for surgery including two cases where the surgical approach was altered. Conclusion Gadolinium-based contrast agents in low-field magnetic resonance imaging can aid the surgical planning of intervertebral disc extrusions in dogs by improving the confidence level of location and extent of extradural material and occasionally altering the surgical approach.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-06-22T12:56:40+01:00
      DOI: 10.1055/s-0042-1748877
       
  • Arthroscopic Caudal Cruciate Ligament Damage in Canine Stifles with
           Cranial Cruciate Ligament Disease

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      Authors: Agnello; Kimberly A., Brown, Dorothy Cimino, Zyla, Samuel G., Hayashi, Kei
      Abstract: Objective The aim of this study was to describe the arthroscopic changes to the caudal cruciate ligament (CdCL) in dogs with cranial cruciate ligament disease. Study Design Arthroscopic video recordings (n = 117) of the stifle with cranial cruciate ligament disease were reviewed. The extent of CdCL tearing was described. Signalment, palpable stifle stability and the presence of a meniscal tear were recorded. Pathology of the synovial joint and the synovium overlying the CdCL were scored at two time points.Two-way interactions were investigated (p 
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-06-22T12:56:40+01:00
      DOI: 10.1055/s-0042-1748858
       
  • Extended Computed Tomography Scale Images Provide a Detailed Assessment of
           Metal Screws and Are Superior to Standard Computed Tomography Scale Images
           and Digital Radiography at Detecting Experimentally Induced Screw
           Fractures In Vitro

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      Authors: Labrador; Jose, Carrera, Ines, Holdsworth, Andy
      Abstract: Objectives (1) To compare the ability of standard computed tomography (CT) scale (SCTS) and extended CT scale (ECTS) images, produced using conventional CT technology, to provide detailed assessment of metal screws in vitro. (2) To assess how screw size, type, and orientation relative to the Z-axis of the gantry affect implant assessment. (3) To test the ability of SCTS, ECTS, and radiography to diagnose screw failure when there is negligible screw fragment displacement. Study design Part 1: 12 screws of different size, type, and composition were scanned in three orientations (parallel or 0°; oblique or 45°; and perpendicular or 90°) relative to the Z-axis of the gantry. SCTS and ECTS reconstructions were made for each screw, in each plane, to assess implant shape, structure, and diameter. Part 2: fatigue-failure was induced in four screws commonly used to stabilize canine humeral intracondylar fissures. Screws were then reassembled achieving grossly perfect apposition and alignment of the fragments. Ability to detect implant failure was tested using SCTS, ECTS, and radiography. Results ECTS provided better screw assessment compared with SCTS resulting in clear visualization of the structure in 8/12 versus 0/12 screws and shape in 12/12 versus 11/12 screws; however, results were affected by screw size, type, and orientation. ECTS identified all in vitro screw fractures with negligible screw fragment displacement; however, success was affected by screw orientation: 4/4 fractures identified with a 90° angle, 1/4 for 45°, and 0/4 for 0°. SCTS and radiography did not identify any of them. Conclusion The results indicate that ECTS reconstructions are useful for assessment of metal screws and for detection of nondisplaced screw fractures.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-06-15T11:12:04+01:00
      DOI: 10.1055/s-0042-1745785
       
  • Factors Contributing to the Need for Non-Elective Explant following
           Surgical Repair of Tibial Tuberosity Avulsion Fracture

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      Authors: Arun; Aparna, Park, Stephanie J., Pavia, Philippa R., Kalafut, Sarah R., Hofmeister, Erik
      Abstract: Objective The aim of this study was to evaluate factors contributing to the need for non-elective explant following surgical repair of tibial tuberosity avulsion fractures. Study Design Retrospective multicentre case–control study. Over a 5-year period, dogs (n = 63) that underwent surgical repair of tibial tuberosity avulsion fractures (n = 64) were considered. Dogs that underwent a non-elective explant were compared with those that did not. Continuous variables were compared with the Mann–Whitney U test. Categorical variables were compared with the Fisher's exact test. Variables which were significant on univariate analysis were entered into a multiple logistic regression model. Significance was set at p 
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-06-09T13:47:53+01:00
      DOI: 10.1055/s-0042-1743562
       
  • Evaluation of Paraspinal Musculature in Small Breed Dogs with and without
           Atlantoaxial Instability Using Computed Tomography

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      Authors: Müller; Annina, Forterre, Franck, Vidondo, Beatriz, Stoffel, Michael H., Hernández-Guerra, Ángel, Plessas, Ioannis N., Schmidt, Martin J., Precht, Christina
      Abstract: Objective The aim of this study was to evaluate differences in paraspinal musculature between dogs with and without atlantoaxial instability (AAI) using computed tomography scans. Study Design Retrospective multicentre study evaluating transverse reconstructed computed tomography scans of 83 small breed dogs (34 with and 49 without AAI) for the cross-sectional paraspinal musculature area at three levels (Occiput/C1, mid-C1, mid-C2). Ratio of moments, dorsal-to-ventral muscle-area ratios (d-v-ratio) and ratios of the dorsal and ventral musculature to C2 height (d-C2-ratio and v-C2-ratio) were evaluated for differences between groups using multivariate analysis of variance (p 
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-06-07T04:39:32+01:00
      DOI: 10.1055/s-0042-1748860
       
  • A Prevalence Study of Canine Humeral Condylar Fractures Over a Ten-Year
           Period at an Academic Teaching Hospital

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      Authors: Schettler; Michael, Cassel, Nicky, Elliot, Ross C., Fosgate, Geoffrey T., Schettler, Keleigh, Biller, David
      Abstract: Objective The aim of this study was to investigate the prevalence, breed predisposition and fracture conformation of humeral condylar fractures (HCF) over a 10-year period. Results were compared with published studies emanating from the United Kingdom exploring effect of breed on HCF. Methods Data for all canine admissions to the Veterinary Teaching Hospital at Kansas State University were extracted for the period January 2010 to October 2020. Humeral fractures were recorded and further subclassified as medial, lateral and ‘T’/‘Y’ condylar fractures. The associations between HCF and subtypes with breed were assessed using univariate logistic regression with a comparison group. Multivariable logistic regression was used to evaluate the effect of breed while accounting for dog age, sex and neuter status. Results Of the 44,952 canine patients seen during the study period, period prevalence (95% confidence interval [CI] for HCF was 0.26% [0.22, 0.31]). After adjustment for age and neuter status, French Bulldogs were 49 times more likely to be diagnosed with a HCF compared with the comparison breed group (odds ratio [OR], 49.0; 95% CI, 26.9–89.3). After adjustment for age and neuter status, Cocker Spaniels (OR, 42.8; 95% CI, 16.8–108.6), Boston Terriers (OR, 22.9; 95% CI, 11.0–47.9) and Brittany Spaniels (OR, 21.5; 95% CI, 7.3–63.1) had the next highest increase in HCF compared with the comparison group. Conclusion Based on a study population from the United States, French Bulldogs were 49 times more likely to be diagnosed with a HCF compared with the comparison breed group.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-05-29T00:00:00+01:00
      DOI: 10.1055/s-0042-1744445
       
  • Retrospective Comparison of Titanium Hybrid Locking Plate with Stainless
           

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      Authors: Chong; Wye Li, Eckart, Louisa Ho, Sul, Rui, Jermyn, Kieri, Michelsen, Jacob
      Abstract: Objective The aim of this study was to evaluate outcomes and complications of dogs that had pancarpal arthrodesis (PCA) using a titanium hybrid advanced locking plate system (ALPS) and stainless steel hybrid dynamic compression plate (HDCP). Study Design Retrospective observational study. Methods Medical records (2007–2020) were reviewed for cases that had PCA performed using ALPS or HDCP. Implant characteristics including metacarpal coverage (MCov), metacarpal width occupied by screw diameter percentage and carpal arthrodesis angle (CAA), complications and outcomes were recorded. Results Pancarpal arthrodesis was performed with ALPS on 15 limbs from 12 dogs, and HDCP on 14 limbs from 11dogs. Median follow-up time was 1,157 days (range: 62–1,902 days) for ALPS group and 340 days (range: 43–1,465 days) for HDCP. Median MCov for ALPS group was 74% (range: 60–87.5%) compared with 56.5% (range: 49.7–91.3%) for HDCP (p = 0.001). There was no difference in CAA and metacarpal width to screw diameter percentage between ALPS and HDCP group. Major and minor complications and surgical site infection rates were not statistically different between the two groups. Plate fracture occurred in 2/15 ALPS PCA and screw loosening occurred in 4/14 HDCP PCA. Full function was achieved in 8/12 and 8/11 of ALPS and HDCP cases, respectively, which was not statistically different (p = 0.76). Conclusion The use of ALPS offers comparable performance to HDCP for PCA
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-05-24T00:00:00+01:00
      DOI: 10.1055/s-0042-1748198
       
  • Influence of the Near-Cortical Over-Drilling Technique on the Mechanical
           Behaviour of Locking Plate Constructs Applied in Maned Wolf's Femur

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      Authors: Siqueira; Rafael C., Rahal, Sheila C., Mesquita, Luciana R., Voorwald, Fabiana A., Fernandes, Martin F., Tosati, Marcos, Ribeiro, Celso R., Scorsato, Paulo S.
      Abstract: Objective The aim of this study was to evaluate the influence of near-cortical over-drilling holes on the mechanical behaviour of locking plate constructs applied in maned wolf's femur by using mechanical testing and finite element method (FEM). Study Design Seven pairs of adult maned wolves (Chrysocyon brachyurus) femur bones were randomly distributed into four groups. In all groups, a 3.5 mm locking compression plate, designed with 12 combi-holes and one locked, was applied to the lateral surface of the femur. G1 (n = 4) received bicortical locking screws placed in holes 1, 3, 5, 8, 10 and 12. In G2 (n = 5), the plate was applied as used in G1, but the application of the locked screws involved the near-cortical over-drilling technique. In G3 (n = 4), the plate was applied as used in G2, but the size of the near-cortical over-drilling was larger. The combi-holes 6 and 7 were maintained over a 10 mm fracture gap without screws. All constructs were tested for failure in the axial load. The axial load was applied eccentrically to the femoral head. Results Statistical differences were observed in the maximum load with G3 > G1 and G3 > G2, and in the deflection with G2 > G1 and G2 > G3. The FEM showed the lowest total displacement of the bone-plate constructs as well as of the plate in G1 compared with G2 and G3. Conclusion The near-cortical over-drilling technique used in unstable fractures induced in the maned wolf's femur showed by static axial compression test that maximum load and deflection are dependent on drill hole size induced in the near-cortex. Based on FEM, the lowest total displacement of the bone-plate constructs was observed in Group 1.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-05-24T00:00:00+01:00
      DOI: 10.1055/s-0042-1748859
       
  • Ex Vivo Evaluation of the Cranial Tibial Artery and Its Compression
           through Fragment Rotation during Tibia Plateau Levelling Osteotomy: An
           Angiographic Three-Dimensional Reconstruction

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      Authors: Cieciora; Lena-Charlott, Harms, Oliver, Freise, Fritjof, Seifert, Hermann, Fehr, Michael
      Abstract: Objective To illustrate the arterial vascularity of the proximal tibia three-dimensionally and to evaluate the impact of fragment rotation on the cranial tibial artery by tibia plateau levelling osteotomy (TPLO). Method Radiographic angiography and computed tomography (CT) were performed on 12 pelvic limbs from six large-breed canine cadavers before and after TPLO. Three-dimensional (3D) models of the stifle, including osseous and vascular structures, were obtained, and the integrity of the cranial tibial artery was assessed. Post-TPLO CT images were used to analyze compression of the cranial tibial artery by the rotated fragment. Results The uncompressed cranial tibial artery caliber, measured proximally and distally to the osteotomy, was 9.52 mm2 (6.07–18.90 mm2). In all adequately rotated fragments, the mean caliber of the artery on the level of the osteotomy was 1.57 mm2 (0.89–2.93 mm2) after TPLO. This represented a significant decrease of approximately 81%. Only slight cross-sectional area decrease (8.8%) was seen in one limb, which was revealed to have insufficient fragment rotation (2.83 mm). Another limb only showed signs of stretching of the artery (31.51%), which was under-rotated and medially displaced. Pre-TPLO 3D reconstructions were mainly consistent with previous anatomic studies except for the distance between tibial cortex and cranial tibial artery, which appeared closer. Conclusion Sufficient fragment rotation leads to compression of the cranial tibial artery. Intraoperative hemorrhage can be caused by laceration of the main cranial tibial artery or by multiple small branches reaching craniolaterally.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-05-17T00:00:00+01:00
      DOI: 10.1055/s-0042-1745847
       
  • Comparison of Two Stifle Exploratory Methods Using Mini-Arthrotomy for
           Diagnosis of Canine Medial Meniscal Pathology: An Ex Vivo Study

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      Authors: Kmieciak; Lauren A., Aulakh, Karanvir S., Harper, Tisha A. M., Mitchell, Mark A., Butler, Ryan J., Liu, Chin-Chi, Aulakh, Harmeet K.
      Abstract: Objective The main aim of this study was to compare the accuracy of stifle exploratory using either a stifle distractor (SD method) or a combination of Hohmann and Senn retractors (HS method) for diagnosing canine medial meniscal tears in cranial cruciate ligament-deficient stifles. Study Design Fifteen pairs of canine cadaveric pelvic limbs were used and cranial cruciate ligament were transected in all stifles. Paired limbs were then randomly assigned to one of five groups based on the tears created in the caudal pole of the medial meniscus: no tear, peripheral detachment, or a variation in three vertical longitudinal tears. A craniomedial mini-arthrotomy was performed by two observers and diagnosis of the medial meniscal status was made utilizing the HS and SD methods. Correct diagnosis of the meniscal tear was compared for both methods and observers. Results Correct diagnoses were made using the HS and SD methods in 24/30 and 24/30 cases for observer 1 respectively; and in 17/30 and 19/30 cases for observer 2 respectively. There was no significant difference in the correct diagnosis of meniscal tears within each observer between the two methods. Conclusion Both HS and SD methods have equal accuracy for the diagnosis of canine medial meniscal pathology for a board-certified surgeon. Unassisted surgeons using the SD method for the evaluation of the medial meniscus are at no diagnostic disadvantage compared with assisted surgeons utilizing the HS method.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-05-17T00:00:00+01:00
      DOI: 10.1055/s-0042-1748486
       
  • Who Is Healthy' A Review of How Equine Control Groups Are Defined in
           Clinical Orthopaedic Research 1999–2021

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      Authors: Wrangberg; T, Kendall, A
      Abstract: Introduction Proper identification of healthy subjects is essential in case–control studies. However, standardized definitions of healthy controls are lacking in equine orthopaedic research. Objectives The aim of this study was to define the non-invasive methods used for selecting healthy control horses in osteoarthritis (OA), desmitis and tendinitis research. Methods Systematic review. Case–control studies with a healthy control group and longitudinal studies where horses had to be healthy at the start were included. Studies where joints were visualized by arthroscopy or post-mortem examination were excluded. Results: From 2,472 OA papers and 2,746 desmitis/tendinitis papers, 127 and 84 papers met the inclusion criteria respectively. For OA, 11 methods were identified for defining healthy subjects with a median of three methods used per paper. Dynamic examination, radiographic evaluation and clinical examination were the most frequent. Eight different methods were identified in the desmitis/tendinitis papers with a median of three methods per paper; ultrasonography, clinical- and dynamic examination were the most frequent. Conclusions Overall, the OA and desmitis/tendinitis studies used similar methods for defining subjects as healthy, but the way the examinations were performed and interpreted was inconsistent. In several studies, healthy controls were not examined for lameness. The most common methods have limitations for detecting horses with early OA, which may have implications for interpretation of results. Standardized use of more sensitive and objective methods could be beneficial.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-05-05T00:00:00+01:00
      DOI: 10.1055/s-0042-1745756
       
  • Computed Tomographic Features of Non-Lame French Bulldog Elbows

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      Authors: Mella; Stephanie, Dirrig, Helen, Meeson, Richard L.
      Abstract: Objective French Bulldogs are predisposed to humeral condylar fractures. Computed tomography (CT) in English Springer Spaniel elbows has allowed identification of humeral intracondylar fissures (HIF), which can cause lameness and predispose to condylar fractures. This study aimed to evaluate CT characteristics of non-lame French Bulldog elbows, to determine the presence of underlying elbow disease. Study Design Retrospective evaluation of CT images from elbows of non-lame French Bulldogs from scans obtained for soft tissue or neurological evaluation was performed. Images were evaluated for the presence of HIF and other elbow abnormalities: condylar and supracondylar remodelling, humeral condylar sclerosis, elbow incongruency, medial coronoid process disease and elbow osteoarthritis. Descriptive statistics were performed. Results Computed tomographic scans from 37 dogs (74 elbows) were reviewed. No HIF were identified, although 28/74 elbows had an intracondylar sclerotic band. Medial coronoid process disease was noted in 16/74 elbows, and small osteophytes were present in 21/74 elbows, suggesting a degree of subclinical elbow disease. Widening of the caudolateral aspect of the radial incisure was identified (37/74) as a breed normal. Elbow incongruency was otherwise rare. Conclusion Non-lame French Bulldogs showed a low prevalence of occult elbow disease but a proportion had radial incisure widening. Although humeral intracondylar sclerosis was present in over a third of dogs, no HIF were identified and therefore no clear cause for their increased risk of humeral condylar fracture was identified.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-03-11T00:00:00+0100
      DOI: 10.1055/s-0042-1744308
       
  • A New Generation of Osteochondral Autograft Transfer System for the
           Treatment of Osteochondritis Dissecans of the Femoral Condyle: Clinical
           Experience in 18 Dogs

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      Authors: Cinti; Filippo, Vezzoni, Luca, Vezzoni, Aldo
      Abstract: Objectives The aim of this study was to describe the clinical application and outcome of osteochondral autograft transfer using the COR system (COR; DePuy Synthes, Warsaw, Indiana, United States) for the treatment of osteochondritis dissecans (OCD) of the femoral condyle in dogs. Methods Medical records of dogs that were treated for OCD of the femoral condyle using the COR system between February 2013 and March 2020 were retrospectively reviewed. The results of pre- and postoperative clinical and radiographic examinations were evaluated. Results Twenty stifles (18 dogs; 15 lateral and 5 medial femoral condyles) met the inclusion criteria. A single graft transfer was done in six stifle joints and mosaicplasty in 14 (2 grafts in 9/14 stifles; 3 grafts in 5/14 stifles). Proper anatomic reconstruction was confirmed intraoperatively and radiographically in all dogs. There were no major and three minor postoperative complications. At 3 months, 15 of 20 stifles (14 of 18 dogs) had no lameness or radiographic signs of inflammation. At 6 months, 12 of 13 dogs had no lameness or discomfort, and four of 13 stifles had radiographic evidence of moderate osteoarthritis. Clinical Significance Treatment of OCD of the femoral condyle using the COR system is feasible in dogs, with low complications and provides a satisfactory short-term outcome.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-03-10T00:00:00+0100
      DOI: 10.1055/s-0042-1744181
       
  • Biomechanical Comparison of Use of Two Screws versus Three Screws Per
           Fragment with Locking Plate Constructs under Cyclic Loading in Compression
           in a Fracture Gap Model

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      Authors: Palierne; Sophie, Blondel, Margaux, Swider, Pascal, Autefage, André
      Abstract: Objectives The aim of this study was to measure and compare the stiffness and cyclic fatigue of two plate-bone model constructs, with either two or three locking screws per fragment, under cyclic compression. Methods A 10-hole 3.5 mm stainless steel locking compression plate (LCP) was fixed 1 mm from a synthetic bone model in which the fracture gap was 47 mm. Two groups of 10 constructs, prepared with either two or three bicortical locking screws placed at the extremities of each fragment, were tested in a load-controlled compression test until failure. Results The three-screw constructs were stiffer than the two-screw constructs (196.75 ± 50.48 N/mm and 102.43 ± 22.93 N/mm, respectively) and the actuator displacements of the two-screw constructs were higher (18.02 ± 1.07 mm) than those of the three-screw constructs (14.48 ± 2.25 mm). The number of cycles to failure of the two-screw constructs was significantly lower (38,337.50 ± 2,196.98) than the that of the three-screw constructs (44,224.00 ± 1,515.24). Load at irreversible deformation was significantly lower in the two-screw constructs (140.93 ± 13.39 N) than in the three-screw constructs (184.27 ± 13.17 N). All constructs failed by plate bending at the gap between the two cylinders. Clinical Significance Omission of the third innermost locking screw during bridging osteosynthesis subjected to compression forces led to a 13.3% reduction in the number of cycles to failure and a 23.5% reduction of the load withstood by the plate before plastic deformation occurred.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-03-10T00:00:00+0100
      DOI: 10.1055/s-0042-1744175
       
  • Treatment of Medial Shoulder Joint Instability by Stabilization with an
           Arthroscopically Guided Prosthetic Ligament: A Cadaveric Feasibility Study
           in Dogs

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      Authors: Llido; Marie, Livet, Véronique, Carozzo, Claude, Viguier, Éric, Cachon, Thibaut
      Abstract: Objective The aim of this study was to assess the feasibility and efficiency of an arthroscopically guided ligamentoplasty of the medial glenohumeral ligament to treat medial shoulder joint instability. Study Design Six Beagle cadavers were used (12 limbs). Both arms of the medial glenohumeral ligament were severed using arthroscopic guidance. Arthroscopically guided reconstruction of the ligament was performed. Threaded sutures were fixed with a bone anchor on the medial aspect of the glenoidal cavity of the scapula, passed through a humeral tunnel and finally tensioned with a suture button on lateral aspect of the humerus. Shoulder abduction angles were measured before and after the section of the medial glenohumeral ligament, and following the surgery. Two orthogonal radiographic projections and dissections were performed after each procedure to grade the placement of the implants. Results Surgical repairs were achieved in 10 out of 12 limbs. The abduction angles after repair with ligamentoplasty were not significantly different from the abduction angles measured before the section of the medial glenohumeral ligament. Conclusion Arthroscopically guided ligamentoplasty with a scapular bone anchor and a humeral drilling tunnel is feasible in cadavers, and efficient to restore acutely shoulder abduction angle in a minimally invasive manner. Further clinical studies are required to assess in vivo results.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-03-04T00:00:00+0100
      DOI: 10.1055/s-0042-1744174
       
  • Characterization of Acute Traumatic Coagulopathy in Cats and Association
           with Clinicopathological Parameters at Presentation

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      Authors: Gustin; Ursina, Sigrist, Nadja E., Muri, Benjamin M., Spring, Irina, Jud Schefer, Rahel
      Abstract: Objective This study aimed to document rotational thromboelastometric (ROTEM) characteristics of traumatized cats and to investigate associations between clinicopathological parameters and acute traumatic coagulopathy (ATC). A secondary goal was to determine the relevance of autoheparinization in injured cats. Study Design Cats presenting with acute (1.1, was 41% and was observed in both cats with and without ATC. None of the evaluated clinicopathological parameters were different between groups or associated with ATC. Conclusions Acute traumatic coagulopathy in cats is mainly characterized by prolonged CT. No relationship between clinicopathological variables and ATC was identified and prediction of ATC based on these variables was not possible. While autoheparinization is important in cats, it is not the sole cause for ATC.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-02-11T00:00:00+0100
      DOI: 10.1055/s-0041-1742248
       
  • Hydrated Nucleus Pulposus Extrusion in Dogs: Thoracolumbar Compared to
           Cervical Cases

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      Authors: Kristiansen; K. V., Schmökel, H., Vermeire, S.
      Abstract: Objective The aim of this study was to review and describe cases of thoracolumbar (TL) hydrated nucleus pulposus extrusion (HNPE) diagnosed with magnetic resonance imaging and surgery, and compare them to cases of cervical (C) HNPE. Study Design Retrospective, single-center study. Results Thirty-six dogs met the inclusion criteria. Fifteen cases were C and 21 TL. Thirteen dogs were chondrodystrophic breeds, mean body weight was 13 kg, median age was 7.5 years, and 30/36 were male. Fewer dogs were chondrodystrophic in the C group compared with the TL group (p = 0.022). More than 90% had an acute onset, and strong activity was more often reported in the TL group. TL HNPE was more often painful, and extruded disc material more often lateralized (p = 0.017). Median Modified Frankel Score at presentation was 3 and 72.2% were non-ambulatory. More TL HNPE (11/21) were treated surgically compared with C HNPE (4/15). Treatment choice was correlated with spinal cord compression (p = 0.0075). Median Modified Frankel Score improved during hospitalization (p = 0.002) and there was no difference in outcome between C and TL HNPE or conservative and surgical treatment. Mean follow-up time was 33 days. All patients were ambulatory at follow-up. Conclusion This study suggests that the HNPE is not limited to the C vertebral column of dogs and can occur in the TL vertebral column as well. Dogs with TL HNPE show spinal hyperesthesia more often and extruded nucleus material is more often lateralized. Outcome is similar to what has previously been described for C HNPE.
      Citation: Vet Comp Orthop Traumatol ; : -
      PubDate: 2022-01-10T00:00:00+0100
      DOI: 10.1055/s-0041-1740608
       
 
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