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Topic:Orthopedics
Orthopedics in horses involves the study and treatment of disorders affecting the musculoskeletal system, including bones, joints, ligaments, tendons, and muscles. This field addresses a range of conditions, from developmental disorders and degenerative diseases to traumatic injuries. Common orthopedic issues in horses include fractures, osteoarthritis, tendonitis, and ligament injuries. Diagnostic techniques such as radiography, ultrasonography, and MRI are employed to assess these conditions. Treatment options may include surgical intervention, physical therapy, and pharmacological management. This page compiles peer-reviewed research studies and scholarly articles that explore the diagnosis, treatment, and management of orthopedic conditions in equine patients.
Objective lameness assessment of 235 horses undergoing lameness examination in Brazil: A retrospective study. Lameness, which arises from functional or structural changes in the limbs or axial skeleton, causes asymmetry in the movement of the equine head and/or pelvis. This study aimed to investigate the lameness patterns of horses that underwent lameness examination or monitoring during the years 2016 to 2020. This retrospective study used data from the lameness examination, evaluated using an objective assessment with body-mounted wireless inertial sensors. The lameness examination comprised clinical history, static inspection, palpation, gait evaluation (for which the animals were equipped with a w...
Survey of veterinarians’ usage and satisfaction with intra-articular polyacrylamide gel in horses. Polyacrylamide gel is increasingly used in equine veterinary medicine for osteoarthritis and other joint disorders. This study aimed to document the indications, treatment protocols, rehabilitation plans, outcomes, and satisfaction with intra-articular polyacrylamide gel in horses, as reported by equine veterinarians. An online questionnaire was distributed to practitioners through the European and American Colleges of Veterinary Sports Medicine and Rehabilitation mailing lists, social media, and direct contact. Of 197 respondents, 160 completed the survey, forming the basis for the descriptiv...
Racing and sales performance in Thoroughbred yearlings after carpal osteochondral fragment removal. While radiographically evident carpal osteochondral fragments (COF) in Thoroughbred yearlings impair sales, their impact on future racing performance has been minimally investigated. Objective: To assess the impact of COF on Thoroughbred yearling sales and racing performance, and whether these are improved by arthroscopic removal. We hypothesised that surgical removal of COF improves Thoroughbred yearling sales and racing performance. Methods: Retrospective observational. Methods: Using clinical records from years 2015-2018, 46 Thoroughbred yearlings with COF were identified and allocated to a...
Accuracy of computer-assisted drilling of equine cervical vertebral bodies using a purpose-built cervical frame-An experimental cadaveric study. To assess the accuracy of computer-assisted surgery (CAS) of equine cervical vertebrae using a purpose-built cervical frame (CF) for neck stabilization. Methods: Experimental cadaveric study. Methods: Six whole fresh equine cadavers. Methods: Cadavers were positioned in dorsal recumbency with the neck extended within the CF. A cone-beam computed tomography (CBCT)-based surgical navigation system with optical tracking was used. A ventral approach exposed cervical vertebrae C3-C5. In each cadaver, 12 drill corridors were prepared with the patient tracker on the CF (position CF), followed by 12 c...
An Ex Vivo Comparison of Stainless Steel Cables to a Non-metallic Polymer Cerclage Cable in an Equine Metacarpophalangeal Joint Arthrodesis Model. The aim of this study was to compare the monotonic tensile strength and fatigue strength of a stainless steel cable (SSC) compared to a human non-metallic polymer cable (NMPC) in an metacarpophalangeal joint arthrodesis model lacking a dorsal plate application.An experimental biomechanical equine cadaver limb study. Ten metacarpophalangeal joints were collected from five adult Thoroughbred horses, euthanatized for reasons unrelated to orthopaedic disease. Each pair of metacarpophalangeal joints was randomly instrumented with either a 1.7-mm SSC or a NMPC. Each construct was tested in cyclic ...
Standing repair of long frontal plane fractures of the proximal phalanx in UK Thoroughbred racehorses: A retrospective analysis of 13 fractures. Sagittal plane fractures of the proximal phalanx (P1) are commonly observed in the UK Thoroughbred racehorse, with the technique and outcome following standing lag screw fixation widely reported. Long frontal plane P1 fractures propagating from the central third of the proximal articular surface occur less frequently, with information concerning repair methods and outcomes currently lacking. Objective: To describe a surgical technique for standing lag screw fixation of long frontal P1 fractures and report on post-operative performance in a UK Thoroughbred population. Methods: Single centre ret...
Osteochondrosis in horses: An overview of genetic and other factors. Osteochondrosis (OC) is a frequent manifestation of developmental orthopaedic disease, and its severe clinical presentation is known as OC dissecans (OCD). OC is defined as a disruption of the endochondral ossification process in the epiphyseal cartilage, and this disease has been reported in different mammalian species, including humans, dogs, pigs, and horses. OCD is an important cause of lameness in sport horses and is a common cause of impaired orthopaedic potential, whose clinical signs may be of minimal magnitude or manifest as severe joint effusion or clinically noticeable lameness. The...
Experimental comparison of caudal wedge ostectomy to cranial wedge ostectomy for surgical treatment of overriding/impinging spinous processes in horses. Caudal wedge ostectomy has not been investigated for overriding or impinging spinous processes (SPs). Objective: To establish the feasibility of caudal wedge ostectomy and compare measures of surgical trauma and error between hypothetical caudal and cranial wedge ostectomies on SPs of different inclinations. Methods: Experimental, method comparison study. Methods: Computed tomography and caudal wedge ostectomy surgery were performed on four cadavers. Observations, technical difficulties, and surgical errors were recorded. Radiographs from 67 horses with overriding/impinging SPs were reviewed. ...
Spondylosis in Horses: Clinical Features, Diagnostic Imaging Findings, Treatment and Outcome in 13 Horses. Back pain is a debilitating condition hampering horses' athletic careers. Thoracic spondylosis (TS), a known cause of back pain, leads to osteophytes formation across intervertebral joints. In horses, TS is poorly reported, with anecdotal signs and response to treatment. To report clinical presentation, diagnostic imaging findings, treatment and outcome in horses with TS. The clinical records of horses diagnosed with TS between 2010 and 2023 were reviewed. Signalment, clinical and imaging findings, treatment, and outcome were analysed. Thoracic spondylosis was graded from 1 to 5. Grades, concu...
Casting techniques of equine hand and foot synovial cavities for the development of teaching models. Horse joints are common sites of injury, orthopedic issues, and surgical and clinical interventions. For this reason, a thorough understanding of joint anatomy, including the boundaries of their recesses and their relationships with other structures of the locomotor apparatus, is essential. This study aimed to develop cast anatomical models of the synovial structures of the equine hand and foot, compare different casting materials and visualization methods, and identify the most suitable technique for enhancing the understanding of equine limb arthrology. Additionally, an anatomical descriptio...
Ex vivo biomechanical comparison of pedicle screw and rod constructs with and without interbody fusion devices for equine cervical vertebral stabilization. To determine the biomechanical properties of pedicle screw and rod (PSR) constructs alone and with an interbody fusion device (PSRIFD) for equine ventral cervical vertebral stabilization. Methods: Cadaveric ex vivo biomechanical analysis. Methods: A total of 14 (n = 14) adult equine cervical vertebral columns. Methods: Cervical vertebral columns were stabilized by PSR alone (n = 6) or PSRIFD (n = 5). Three columns were left unaltered as controls. Non-destructive biomechanical testing showed the kinematic range of motion (ROM), compliance, and neutral zone of each spinal unit in the...
Return to Athletic Activity of a Shetland Pony Mare with Coxofemoral Luxation Treated by Femoral Head Ostectomy. Femoral head ostectomy is considered a salvage procedure in the treatment of chronic coxofemoral joint luxation in small equids. Permanent lameness of varying degrees, largely depending on the animal's weight, and potential contralateral limb deformity may occur. The purpose of this study was to report the outcome of a small equid that, despite undergoing a femoral head ostectomy for a chronic coxofemoral joint luxation, was able to return to being ridden by children and to athletic activities. Methods: An 8-year-old Shetland pony mare (180 kg) was presented for a chronic right hind limb lamen...
Treatment of traumatic disruption of the suspensory apparatus in Thoroughbred racehorses at risk of proximal interphalangeal joint subluxation using a locking compression-distal femur plate for double arthrodesis. To describe the outcome of metacarpophalangeal (MCPJ) and proximal interphalangeal joint (PIPJ) arthrodesis using a locking compression-distal femur plate (LCP-DFP) in Thoroughbred racehorses with traumatic disruption of the suspensory apparatus (TDSA) at risk of PIPJ subluxation. Methods: Multicenter retrospective study. Methods: Twenty-six Thoroughbred racehorses. Methods: Records of Thoroughbred racehorses with TDSA that had undergone MCPJ and PIPJ arthrodesis using an LCP-DFP at three referral hospitals between 2020 and 2024 were reviewed for inclusion. The preoperative data collected incl...
Biomechanical Assessment of the Collateral Ligament of the Distal Interphalangeal Joint of the Horse Following Alterations to the Palmar Angle-A Cadaveric Study. Therapeutic shoeing for horses is used to affect the palmar angle (PA) of the distal phalanx. These changes may influence the strain on the distal interphalangeal joint collateral ligaments (DIJCLs). This cadaveric study aimed to assess DIJCL strain under varying loads and PA adjustments. Using 26 cadaver forelimbs, eight optical markers were placed on one DIJCL for strain measurement under five different loads (1000-5000 newtons) at a neutral PA, followed by PA increases of 2°, 4°, and 6° and decreases of -2° and -4°. The results indicate that increases in PA corresponded to significantl...
Factors associated with time to return to horse racing following a clavicle fracture in jockeys competing in Great Britain: A review and analysis of medical records. Competitive horse racing is the second largest sport in Great Britain by spectator attendance, employability, and revenue. It is a lucrative yet hazardous sport, with high injury rates, particularly from falls. Clavicular fractures are one of the most common injuries reported, yet their management, especially regarding return to racing, is under-researched. The purpose of this study was to explore the factors associated with the time to return to competition following a clavicular fracture in jockeys competing in Great Britain. Methods: This review of medical records utilised data from the Bri...
Cartilage defect identification on computed tomography arthrography in equine fetlock: Ex-vivo study. CT arthrography (CTA) for evaluating cartilage defects would be beneficial in clinical practice. Since the contrast medium (CM) volume is often driven by operator experience, the aim was to evaluate the minimum volume of iodinated CM for CTA sufficient to identify iatrogenic cartilage defects in horse fetlock. The study was conducted on ex-vivo 32 distal limbs from adult horses collected at slaughter. Iatrogenic cartilage defects were arthroscopically made on fetlock, at 5 predetermined locations. Subsequently, CT scans were performed, according to the following protocol: precontrast scan, fol...
Identification of a global gene expression signature associated with the genetic risk of catastrophic fracture in iPSC-derived osteoblasts from Thoroughbred horses. Bone fractures are a significant problem in Thoroughbred racehorses. The risk of fracture is influenced by both genetic and environmental factors. To determine the biological processes that are affected in genetically susceptible horses, we utilised polygenic risk scoring to establish induced pluripotent stem cells (iPSCs) from horses at high and low genetic risk. RNA-sequencing on iPSC-derived osteoblasts revealed 112 genes that were significantly differentially expressed. Forty-three of these genes have known roles in bone, 27 are not yet annotated in the equine genome and 42 currently have ...
Severe auricular skin necrosis as potential postanaesthetic complication in a horse undergoing general anaesthesia for orthopaedic surgeries. A Trotter mare (aged 5 years 8 months) presented with severe thoracic limb lameness 2 years after screw fixation of a third carpal bone fracture. Septic arthritis of the intermediate carpal joint necessitated three anaesthetics: two arthroscopic lavages in dorsal recumbency, followed by a computed tomography-guided screw explantation with curettage of an infected, sclerotic third carpal bone in right lateral recumbency. For each anaesthetic, maintenance was with isoflurane carried in oxygen and air, and a medetomidine constant rate infusion. Twelve days after the third anaesthetic, the horse h...
Bilateral coxofemoral dysplasia in a Mangalarga Marchador foal. Coxofemoral dysplasia is a condition characterized by the abnormal development and flattening of the femoral head and deformities in the acetabulum, leading to joint instability. Although described in various animal species, it is uncommon and rarely reported in horses. This article presents a case of incapacitating coxofemoral dysplasia diagnosed in a four-month-old foal Mangalarga Marchador, which exhibited lameness in the hind limbs, thoracolumbar kyphosis, gluteal muscle atrophy, and pronounced sensitivity during pelvic limb flexion. The clinical diagnosis indicative of bilateral coxofemor...
Injury Patterns and Associated Demographic Characteristics in Children with a Fracture from Equines: A US National Based Study. Fractures often occur due to equestrian activities with injury patterns varying by age. The purpose of this study was to investigate in detail fracture patterns and associated demographics in children due to equine activities. Methods: The US National Electronic Injury Surveillance System was queried for all injuries with the consumer product code 1239 (horseback riding) from 2000 to 2023. Those <16 years old with fractures were extracted. Statistical analyses were performed with SUDAAN 11.0.01™ software to obtain national estimates. Results: There were an estimated 101,677 patients with a f...
Twelve-year review of horse-related trauma registry presentations to a regional Australian Emergency Department. The size, strength, and unpredictability of horses, makes any interaction a potential situation for minor to severe injury. Despite this, horses continue to be popular for work and recreational activities. There have been five recent Australian publications that have examined various aspects of horse-related trauma, but none have been conducted in regional New South Wales (NSW). This study aims to report on the pattern of horse-related trauma that met the Institute of Trauma Injury Management's (ITIM) Trauma Registry criteria for people who presented to the emergency department at a regional N...
Visualization of anatomical structures in the carpal region of the horse using cone beam computed tomography in comparison with conventional multidetector computed tomography. In the diagnostics of orthopedic diseases in the horse, diagnostic imaging often plays a decisive role. Cone beam computed tomography (CBCT) imaging is used in both human and small animal medicine and becoming increasingly popular. To see whether CBCT imaging can be useful in the diagnosis of orthopedic diseases of the carpal region of the horse and to explore possible limitations we compared CBCT images with multidetector computed tomography (MDCT) images of the carpal region of equine cadaveric specimens. Unassigned: Twenty-eight forelimbs from fifteen horses, slaughtered for reasons unrelat...
Visualization of anatomical structures in the carpal region of the horse using cone beam computed tomography in comparison with conventional multidetector computed tomography. In the diagnostics of orthopedic diseases in the horse, diagnostic imaging often plays a decisive role. Cone beam computed tomography (CBCT) imaging is used in both human and small animal medicine and becoming increasingly popular. To see whether CBCT imaging can be useful in the diagnosis of orthopedic diseases of the carpal region of the horse and to explore possible limitations we compared CBCT images with multidetector computed tomography (MDCT) images of the carpal region of equine cadaveric specimens. Unassigned: Twenty-eight forelimbs from fifteen horses, slaughtered for reasons unrelat...
Reproducibility and agreement of radiographic assessment of carpal deformities in foals. The Pivot Point (PP) method is commonly used in the radiographic assessment of carpal deformities in young foals, as the range of deviation may influence treatment choice. The aims of this study were to assess the intra- and interobserver reproducibility of the PP method and subjective radiographic evaluation without line drawing to establish the anatomical site responsible for carpal deviation in foals and to evaluate the agreement between these two techniques. Unassigned: Anonymized radiographs of foals presented for investigation of carpal deformity or prematurity were retrospectively and i...
Gold-Induced Cytokine (GOLDIC) for the Management of Knee Osteoarthritis: A Systematic Review. Gold-induced cytokine (GOLDIC) is a novel orthobiologic approach utilizing gold particles to produce a serum rich in immunoregulating cytokines and growth factors, which is being explored for its potential in tissue regeneration and treating musculoskeletal issues like knee osteoarthritis (OA). This study aims to review its mechanism of action along with the outcomes of , preclinical, and clinical studies, with a secondary focus on documenting clinical trials related to its use in OA of the knee. A systematic search was conducted in four databases (Embase, Scopus, PubMed, Web of Science) for...
Diastasis of the Pubic Symphysis Without Fall While Horseback Riding: A Case Report. The purpose of this study was to demonstrate a rare case of pelvic ring injury in a healthy man without a history of high energy damage. A 43-year-old man presented to the emergency with local pain in pubic symphysis and difficulty walking after horseback riding. The patient did not report any fall or injury during this recreational activity, and apart from tachycardia, he was hemodynamically stable with normal blood pressure. Additionally, no deficit of neurological function was observed. The radiological imaging demonstrated an injury of the pelvic ring APC II with a diastasis of pubic symph...
Equine bone marrow-derived mesenchymal stromal cells reduce established S. aureus and E. coli biofilm matrix in vitro. Biofilms reduce antibiotic efficacy and lead to complications and mortality in human and equine patients with orthopedic infections. Equine bone marrow-derived mesenchymal stromal cells (MSC) kill planktonic bacteria and prevent biofilm formation, but their ability to disrupt established orthopedic biofilms is unknown. Our objective was to evaluate the ability of MSC to reduce established S. aureus or E. coli biofilms in vitro. We hypothesized that MSC would reduce biofilm matrix and colony-forming units (CFU) compared to no treatment and that MSC combined with the antibiotic, amikacin sulfate...
Influence of the Vertek aiming device on the surgical accuracy of computer-assisted drilling of the equine distal sesamoid bone-An experimental cadaveric study. To determine the effect of the Vertek aiming device (VAD) on the surgical accuracy of navigated drilling of the distal sesamoid bone (DSB). Methods: Experimental cadaveric study. Methods: A total of 30 paired equine cadaveric limbs from 15 horses. Methods: Each specimen was placed in a purpose-built frame (PBF). Preoperative cone beam computed tomography (CBCT) images were acquired with an imaging unit coupled with a surgical navigation system. In the DSB of each specimen, a 4.5 mm glide hole and a 3.2 mm thread hole were drilled under navigation guidance, to simulate drilling for the repa...
Sex hormone-binding globulin promotes the osteogenic differentiation potential of equine adipose-derived stromal cells by activating the BMP signaling pathway. Musculoskeletal injuries and chronic degenerative diseases pose significant challenges in equine health, impacting performance and overall well-being. Sex Hormone-Binding Globulin (SHBG) is a glycoprotein determining the bioavailability of sex hormones in the bloodstream, and exerting critical metabolic functions, thus impacting the homeostasis of many tissues including the bone. Unassigned: In this study, we investigated the potential role of SHBG in promoting osteogenesis and its underlying mechanisms in a model of equine adipose-derived stromal cells (ASCs). An SHBG-knocked down model has b...
Evaluation of agreement for radiographic lesions and risk for racing in thoroughbred yearling sale repository radiographs. The veterinary yearling pre-sale repository radiographs have the potential to impact both vendor and prospective purchaser. The primary aim of this study was to determine inter-observer agreement for orthopaedic lesions identified in thoroughbred yearling repository radiographs. A secondary goal was to determine agreement when using a pre-defined risk rating classification. Unassigned: Three experienced specialist equine surgeons (2 ACVS & 1 FANZCVS) interpreted thirty repository radiographs once each for radiographic abnormalities. Each radiographic abnormality was given an associated ris...
