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Topic:Surgery
Surgery for horses encompasses a range of procedures performed to diagnose, treat, or manage various medical conditions. These procedures may involve soft tissue or orthopedic interventions and require specialized techniques to accommodate the unique anatomical and physiological characteristics of equines. Common surgical procedures in horses include colic surgery, fracture repair, and arthroscopy. The success of equine surgery depends on numerous factors, including the type of procedure, the horse's overall health, and post-operative care. This page compiles peer-reviewed research studies and scholarly articles that explore surgical techniques, outcomes, and advancements in equine surgical practices.
[Cutaneous vascular hamartoma in a foal]. Vascular hamartomas are rare malformations in foals that typically present as painless masses of the skin or subcutaneous tissue. This case report describes a newborn foal with a vascular mass over the right shoulder. Complete surgical excision was performed at seven days of age. Histologically, the lesion was found to be a well-defined dermal vascular proliferation consistent with a vascular hamartoma. The healing process was uneventful, and no recurrence occurred six months postoperatively. This case adds a rare location on the scapula to the literature and confirms surgical removal as an ef...
Centrifugation of peritoneal fluid improves visual assessment of strangulating lesions in equine colic. Early and accurate recognition of a strangulating lesion is essential to expedite surgical intervention in horses presenting with colic. Objective: To evaluate the use of a colour grading scale in the visual assessment of peritoneal fluid, before and after centrifugation, and assess its ability to predict the presence of a strangulating lesion. Methods: Prospective clinical study. Methods: Peritoneal fluid samples from 231 equids presenting with colic were visually analysed immediately after collection and assigned a numerical value based on a developed colour scale. Peritoneal fluid was centr...
Surgical Management of Unilateral Maxillary Molar Teeth Impaction in a Horse. Impaction of equine permanent cheek teeth is most commonly reported in the mandible, whereas maxillary involvement is rare. This report describes an uncommon presentation of congenital impaction of 3 successive maxillary molar teeth in a 4-year-old mare. Computed tomography revealed complex spatial relationships between the impacted teeth, the sinus floor and adjacent structures, which were not fully appreciated on conventional radiography and were essential for surgical planning. Surgical extraction via a maxillary sinus bone flap permitted controlled sectioning and subsequent removal of all ...
Depth and distribution of colonic sand accumulation in a desert population of horses and its association with diagnosis of sand colic. To describe patient and management characteristics associated with radiographic sand accumulation in a desert population of horses, as well as identify factors independently associated with a diagnosis of sand colic and need for surgical intervention. Unassigned: Horses were prospectively allocated into 3 groups: control horses, horses with sand colic, and horses with non-sand-associated colic. Signalment, radiographs, and management outcomes were compared between groups. Unassigned: Median depth of sand was significantly greater in horses diagnosed with sand colic compared to other groups (11...
[Puncture wounds of the equine hoof – a retrospective study of 96 cases – Part 2: Management and prognosis]. Puncture wounds are a common and potentially life-threatening injury in equine veterinary practice. The aim of this study was to systematically analyze data from horses presenting to the clinic with a puncture wound. Unassigned: A retrospective study was conducted on patient data from horses with a puncture wound in the period from September 2008 to August 2024. Analyzed data included medical management and surgical treatment, complications, duration and costs of hospitalization, short-term survival rate and treatment success. Unassigned: A total of 96 horses met the inclusion criteria. Seven ...
Osteosynthesis of bilateral, displaced incisive bone fracture in a horse. A nine-year-old Trakehner mare was presented three days after an episode of severe epistaxis, showing intermittent foul-smelling nasal discharge with feed material and rostral displacement of the upper incisor teeth. Radiographic and computed tomography examinations revealed a complete comminuted fracture of the right side and an oblique complete fracture of the left side nasal processes of the incisive bone and maxillary bone, as well as open fractures of the nasal septum and palatine bone with displacement of the incisor part rostrally and development of an oronasal communication. The fractu...
Intratracheal Leiomyosarcoma in a 13-Year-Old German Riding Pony Mare. A 13-year-old German Riding Pony mare was referred for evaluation of progressive respiratory noise and mixed dyspnoea, which rapidly deteriorated to respiratory distress. Clinical examination revealed marked rattling inspiratory and expiratory tracheal sounds and severe, rattling, vesicular lung sounds. Arterial blood gas analysis demonstrated moderate hypoxaemia (partial pressure of arterial oxygen 76 mmHg at rest). Upper airway endoscopy identified a pink, cauliflower-like pedunculated mass originating from the dorsal tracheal wall approximately 15 cm cranial to the tracheal bifurcation, cau...
Concurrent Small Intestinal Neoplasia And Large Colon Volvulus In A Standardbred Yearling. Large colon volvulus is a common, life-threatening cause of colic in horses. Gastrointestinal neoplasia is a rare cause of abdominal pain in young horses. A 1-year-old Standardbred colt presented with acute colic unresponsive to medical treatment. An exploratory laparotomy identified extensive gastrointestinal pathology, and euthanasia was elected due to a poor prognosis. Necropsy revealed a 360-degree volvulus of the caecum and large colon with adhesions, enterotyphlocolitis, and a well-circumscribed mesenteric mass arising from the small intestine. Histopathology in combination with immunohi...
Comparison of Fogarty and Vollmar thrombectomy for chronic jugular thrombosis in horses. Chronic jugular vein thrombosis may result in persistent venous obstruction and impaired head drainage. Although surgical thrombectomy is performed in selected cases, experimental comparisons between mechanical techniques for chronic thrombus removal in horses are lacking. Objective: To compare Fogarty catheter thrombectomy alone with a combined Vollmar ring-Fogarty technique for restoration and maintenance of luminal patency in experimentally induced chronic jugular thrombosis. Methods: Randomised in vivo study. Methods: Chronic right jugular thrombosis was induced in 10 healthy adult horses....
Complications Following Nictitating Membrane Resection in Horses: 92 Eyes (2015-2024). The goal of this retrospective study is to evaluate the complications following nictitating membrane resection in horses with the aim of providing valuable information on the risks of this surgical procedure. Methods: 83 horses (92 eyes). Methods: Medical records for 83 horses that underwent nictitating membrane resection in 92 eyes between February 2015 and June 2024 were reviewed. Horses were included if they had at least 1 month of follow-up data available. Owners were contacted via telephone or email questionnaire to obtain follow-up information. Complications were recorded only when pre...
Core decompression augmented with bone marrow aspirate concentrate for refractory distal sesamoid bone pathology in horses: A retrospective clinical study. To determine short- and long-term outcomes of core decompression combined with autologous bone marrow aspirate concentrate (BMAC) in treating moderate-to-severe refractory distal sesamoid bone (DSB) trabecular pathology in horses. Methods: Retrospective observational study. Methods: A total of 21 client-owned Warmblood horses with DSB pathology unresponsive to conservative management. Methods: Preoperative diagnosis included lameness localization by diagnostic analgesia and magnetic resonance imaging (MRI) confirmation of DSB trabecular pathology. Horses underwent arthroscopic core decompressi...
Favorable survival of horses with guttural pouch mycosis following hospital-based treatment. To report the clinical outcomes and survival time in horses undergoing treatment of guttural pouch mycosis. Unassigned: Client-owned horses with guttural pouch mycosis admitted between 2005 and 2024 for evaluation and treatment were identified by medical record search. Signalment, disease history, and surgical and treatment details were recorded. Owners were contacted for follow-up information. Unassigned: 41 horses with guttural pouch mycosis were identified, of which 28 had epistaxis or a history of epistaxis on presentation. Thirty-five horses underwent surgical treatment, and the procedure...
Effect of neonatal rib fracture repair on racing and sales performance in Thoroughbreds. The racing outcome of horses that have undergone surgical repair of neonatal rib fractures is not well documented. Objective: To evaluate the impact of surgical repair of neonatal rib fractures on subsequent sales and racing performance in Thoroughbreds. Methods: Retrospective cohort study. Methods: Medical records of neonatal Thoroughbreds that underwent surgical repair of rib fractures at a referral hospital between 2014 and 2025 were reviewed. Sales and racing data were obtained from publicly available databases. Outcomes assessed included sale price at weanling and yearling sales, total ca...
Ceratohyoidectomy for Management of Unilateral and Bilateral Temporohyoid Osteoarthropathy: Long-Term Outcome in 33 Equids. Temporohyoid osteoarthropathy is a disease affecting the temporohyoid joint in equids caused by local inflammation and/or degeneration, leading to neurological deficits ranging from mild signs that affect performance to significant, acute neurological deficits such as facial nerve paralysis or vestibular signs. Multiple surgical treatment options are available, and while treatment has historically been performed unilaterally on the side of the clinical signs, advances in diagnostic imaging have highlighted the occurrence of bilateral disease of the temporohyoid joints, warranting evaluation of...
Penile and preputial pythiosis in Saudi Arabian horses: clinicopathological features and surgical outcomes. Pythiosis, caused by , is a chronic granulomatous disease of horses characterized by invasive, ulcerative, and pyogranulomatous cutaneous lesions. Involvement of the external genitalia is uncommon and remains poorly characterized, particularly regarding environmental exposure and treatment outcomes. This study aimed to describe the epidemiological pattern, clinicopathological features, diagnostic findings, and surgical outcomes of penile and preputial genital pythiosis in a hospital-presented horse cohort. Unassigned: A retrospective study was conducted on 123 horses presented with cutaneous u...
Single-stage orthognathic correction of campylorrhinus lateralis in foals using transection and fixation: Surgical description and outcome of four horses. Campylorrhinus lateralis ('wry nose') is a rare congenital maxillofacial deformity of foals resulting in compromise of the airway and severe class 4 malocclusion. Various surgical techniques to correct the deformity have been described, but contemporary data on single-stage transection and fixation, including use of a rib graft, and long-term functional and cosmetic outcomes remain underreported. Objective: To describe the transection-and-fixation technique and perioperative management used to correct wry nose in horses, and to report postoperative complications and long-term outcomes of horse...
The Peridental Structures of Equine Cheek Teeth: An Age-Dependent Anatomical Study of Maxilla and Mandible. Sequestration is the most common complication following equine cheek tooth extraction, occurring predominantly in the mandible of younger horses. Extraction-related trauma to the peridental region may impair healing. Despite its clinical relevance, detailed knowledge of peridental anatomy remains limited. This study investigated age-related differences in the peridental region of maxillary and mandibular equine cheek teeth 07 to 09. The peridental region of 24 cheek teeth rows from six cadaver heads was sectioned horizontally at approximately 10 mm intervals. Sections were photographed and the...
Electrochemotherapy Following Surgical Cytoreduction for the Treatment of Recurrent Equine Sarcoids: A Retrospective Study of 23 Lesions. Despite the wide range of therapeutic options currently available for equine sarcoids, recurrence of these lesions remains a major clinical challenge. Consequently, the identification of effective strategies for the management of recurrent sarcoids remains an important objective in equine oncology. The aim of this retrospective study was to evaluate the clinical outcome of surgical cytoreduction combined with intraoperative electrochemotherapy in horses affected by recurrent equine sarcoids. Medical records of horses treated between July 2018 and August 2025 at the Veterinary Teaching Hospital...
Anatomical Insights Into the Equine Cervical Intervertebral Foramina: Implications for Veterinary Practice. The equine cervical intervertebral foramina (IVF) represent vital anatomical regions facilitating the passage of spinal nerves and associated vasculature. An in-depth understanding of their anatomy is imperative for the safe implementation of diagnostic and surgical interventions. Despite their clinical significance, anatomical descriptions of the equine cervical IVF remain under-characterised in the existing literature, particularly in relation to the needs of equine veterinary surgeons. Our study provides comprehensive anatomical analysis of the IVF at the cervical vertebral levels C5/C6 and...
Hoist failure during recovery transfer in an anaesthetised horse: a near miss analysed through a Safety-II lens. A 660 kg, 11-year-old Irish Sport Horse gelding underwent general anaesthesia for an out-of-hours emergency exploratory laparotomy. After approximately 5 hours of anaesthesia, transfer to the recovery box began, using a ceiling-mounted hoist. As the horse crossed the theatre-recovery interface, the hoist failed due to mechanical disengagement. This resulted in loss of electrical power, leaving the anaesthetised horse suspended approximately 150 cm above the floor for approximately 10 minutes. The horse could not be advanced, reversed, or lowered using standard controls. Activity was paused, an...
Comparison of Rectal and Intraoperative Findings in Horses with Colic. Per rectum examination (PRE) is commonly used in the triage of horses with acute abdominal pain, despite reports of associated risk factors for both horses and personnel, but its diagnostic accuracy is questionable. This multicenter, observational study aimed to evaluate the agreement between PRE findings and surgical findings obtained via exploratory laparotomy in horses with colic. A total of 201 cases from four equine referral hospitals across Europe were included. Rectal findings were categorized as primary (most likely cause of colic) or additional. Agreement with surgical findings was as...
Maxillary and mandibular fracture repair using a modified bis-acryl reinforced interdental wiring technique: Description of the technique and report of 11 cases. Repair options for maxillary and mandibular fractures in horses are dictated by the proximity of dentition, fracture configuration, and implant design. Jaw fractures can be repaired by minimising tension forces via intraoral splint constructs when dentition is present on either side of the fracture line. This repair option reduces iatrogenic damage to dentition while achieving reduction and stability until appliance removal. Objective: To first report a modified technique for jaw fracture repair in horses with cadaveric example images. Second, to report the clinical outcome of maxillary and ma...
Pneumocoele sinus: Computed tomographic findings and surgical approach in a 2-year-old Cob filly. Pneumosinus dilatans and pneumocoele sinus describe abnormal hyperpneumatisation of paranasal sinuses, with the latter being accompanied by thinning of bony walls. Although recognised in human and equine medicine, to the authors' knowledge, this condition's computed tomography (CT) findings and successful surgical approach in horses have not previously been reported in conjunction. Advanced imaging, particularly CT, is pivotal for identifying abnormal sinus expansion and associated nasal obstruction. Methods: Case report. Conclusions: A 2-year-5-month-old Cob filly presented with a 1-month his...
Orchiectomy in horses: closed technique and primary closure of the incision. To provide a video tutorial on how to perform equine castrations using the closed technique and primary closure of the skin. Unassigned: Intact male horses presented to equine veterinary hospitals for castration. Unassigned: The closed castration technique was performed with incisions over the inguinal rings and primary closure. Unassigned: This technique is associated with minimal complications, decreased edema, less pain, lower infection rates, and faster healing. Unassigned: The technique presented in this video tutorial provides a quick and safe method for removing descended as well as non...
Umbilical vein marsupialization in foals-short literature review. Umbilical remnant infections are common in neonatal foals and may involve one or more umbilical structures. Diagnosis relies on thorough clinical examination, ultrasonography, and hematologic evaluation. Standard care includes broad-spectrum antibiotics, with surgical resection if conservative therapy fails. Omphalophlebitis may extend to the liver, prompting consideration of umbilical vein marsupialization. Surgery is performed in dorsal recumbency with a fusiform incision around the umbilicus. The umbilical arteries and urachus are ligated and transected, with partial cystectomy when indicat...
Jejunocecostomy in horses-a review of its unique complexities. Jejunocecostomy (JC), or jejunocecal anastomosis, is arguably the most controversial surgical procedure in equine small intestinal surgery. It is also the only option for resection and anastomosis for a third of small intestinal strangulating lesions in horses. Critics of the procedure identify its low survival and high complication rates as reasons to avoid its use. This review is intended to highlight findings of recent research and clinical studies that validate use of the JC, and to provide some insights into technical aspects of the procedure that might improve its survival rates. Jejunoc...
Computed tomography long-term follow-up of a facial fracture involving the orbit and paranasal sinus. Fractures of the facial bones involving the orbit are challenging conditions that require surgical treatment. Objective: To describe preoperative and postoperative clinical and computed tomographic findings of an orbital rim fracture repaired using a reconstruction plate. Methods: Case report. Methods: A 14-year-old Haflinger mare was presented with an open, depressed and comminuted fracture involving the frontal, nasal, lacrimal and maxillary bone, sinus system and the medial aspect of the orbital rim and wall on the right side, as diagnosed by CT. Fracture repair included orbital rim reconst...
