Veterinary Surgery最新文献

{"title":"Ex vivo comparison of full-thickness biopsy techniques in the equine small intestine.","authors":"Nicole Verhaar, Elisabeth Hammer, Wencke Reineking, Marion Hewicker-Trautwein, Florian Geburek","doi":"10.1111/vsu.14178","DOIUrl":"10.1111/vsu.14178","url":null,"abstract":"<p><strong>Objective: </strong>To compare the practicability and tissue sample quality between different intestinal biopsy techniques.</p><p><strong>Study design: </strong>Experimental, randomized ex vivo study.</p><p><strong>Sample population: </strong>Small intestine of nine horses.</p><p><strong>Methods: </strong>Four different biopsy techniques were evaluated in the aboral jejunum and the ileum within 1 h after euthanasia. One segment was used as control (C), and the applied techniques included an 8 mm biopsy punch (BP), transverse wedge resection (TW), longitudinal wedge resection with transverse closure (LW) and a longitudinal sample using Eppendorfer biopsy forceps (EF). Defects were closed using a single-layer continuous Lembert pattern. Duration of the procedure, intestinal diameter, contamination, and bursting pressure were determined. The quality of the obtained tissue samples for histological assessment was evaluated using a semiquantitative score. The jejunal and ileal samples were analyzed separately.</p><p><strong>Results: </strong>All biopsy procedures including defect closure were completed within 5 min, with shorter closure times for BP (p = .03). Minimal contamination could be noted in 1/8 TW and 2/8 LW cases, without significant differences between the groups. Longitudinal closure techniques (BP, EF) showed more constriction than transverse closures (TW, LW) (p < .05). Bursting pressure was >75 mmHg in all cases. Technique BP showed significantly lower biopsy quality scores (p = .009).</p><p><strong>Conclusion: </strong>The tested biopsy techniques could all be applied effectively within a reasonable time frame, yet the biopsy punch was associated with significant artifacts and risk of missing mucosa.</p><p><strong>Clinical significance: </strong>The findings provide insights into the possible advantages and limitations of the different techniques and alert the surgeon to potential issues with the quality of the tissue sample.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"208-218"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11734869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term survival and complications following small intestinal resection and partially stapled, functional end-to-end anastomosis.","authors":"Elizabeth Katherine Kopec, Martha Stevens, Oliver Crowe, Chris Wright, Joanna Suthers","doi":"10.1111/vsu.14169","DOIUrl":"10.1111/vsu.14169","url":null,"abstract":"<p><strong>Objective: </strong>The aim of the present study was to investigate the long-term survival and postoperative complications in horses that had undergone small intestinal resection and a modified anastomosis technique using a partially stapled, functional end-to-end anastomosis.</p><p><strong>Study design: </strong>Observational retrospective case series.</p><p><strong>Animals: </strong>A total of 25 horses underwent small intestinal resection and a partially stapled, functional end-to-end anastomosis.</p><p><strong>Methods: </strong>A modified technique to create a partially stapled, functional end-to-end anastomosis is described. The clinical case records of all horses that fulfilled the criteria between January 1, 2010 and January 1, 2020 were reviewed. Data on short-term survival and postoperative complications were collated. A telephone questionnaire of owners was undertaken to evaluate long-term survival.</p><p><strong>Results: </strong>Duration of follow up was from one to 4232 days (median 785 days). A total of 21/25 (84%) of horses survived to discharge, 19/25 (76%) horses were alive at 6 and 12 months and 64% survived to 2 years. A total of 64% of horses developed at least one postoperative complication. Two horses developed a small intestinal volvulus necessitating repeat laparotomy. One horse had kinking at the anastomosis site diagnosed at post-mortem examination.</p><p><strong>Conclusion: </strong>Partially stapled functional end-to-end anastomosis technique in this study had similar short- and long-term survival to those reported in previous studies using handsewn techniques, but severe complications at the anastomosis site occurred in >10% of cases.</p><p><strong>Clinical relevance: </strong>The anastomosis technique described appears to have similar short- and long-term survival and complication rates, compared to more commonly used anastomosis techniques. However, there is potential for severe complications at the anastomosis site.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"172-181"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intraoperative sentinel lymph node mapping with indocyanine green via video-assisted thoracoscopic surgery for primary pulmonary neoplasia in a dog.","authors":"Maureen A Griffin, Amy B Todd-Donato, Nathan Peterson, Nicole J Buote","doi":"10.1111/vsu.14187","DOIUrl":"10.1111/vsu.14187","url":null,"abstract":"<p><strong>Objective: </strong>To report the use of intraoperative sentinel lymph node (SLN) mapping with indocyanine green (ICG) and near-infrared (NIR) imaging in a dog with a primary pulmonary carcinoma that underwent lung lobectomy via a video-assisted thoracoscopic approach.</p><p><strong>Study design: </strong>Case report.</p><p><strong>Animals: </strong>A 9-year-old female spayed Labrador retriever.</p><p><strong>Methods: </strong>A solitary, 6.5 cm diameter, right caudal pulmonary mass was identified on contrast-enhanced thoracic and abdominal computed tomography, with no overt metastatic disease or other primary neoplastic diseases. The dog underwent video-assisted thoracoscopic surgery. A right-sided thoracoscopic approach was initially performed for right caudal pulmonary ligament transection and image-guided peritumoral (intrapulmonary) ICG injection. Due to the large size of the mass, a wound retractor was then placed in the right 6th intercostal space for right caudal lung lobectomy. Sentinel lymph node mapping was performed via NIR imaging, and the SLN was extirpated for histologic assessment.</p><p><strong>Results: </strong>The right tracheobronchial lymph node was identified as sentinel via NIR fluorescence following peritumoral ICG injection. Right caudal lung lobectomy and right tracheobronchial lymph node extirpation were performed without complication, and histologic evaluation revealed a grade 1 pulmonary adenocarcinoma with pneumonia and a reactive lymph node.</p><p><strong>Conclusion: </strong>Peritumoral ICG administration with NIR imaging appears to be an effective method for intraoperative SLN mapping in dogs with primary pulmonary tumors. The technique utilized in this report can be applied to open or minimally invasive procedures. Large-scale studies with SLN mapping are needed to determine an accurate incidence of nodal metastatic disease and any effect of extirpation of early metastatic disease via SLN mapping techniques on oncologic outcomes in dogs with primary pulmonary carcinoma.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"228-234"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Horseshoe effects on equine gait-A systematic scoping review.","authors":"Rita Aoun, Catherine Takawira, Mandi J Lopez","doi":"10.1111/vsu.14162","DOIUrl":"10.1111/vsu.14162","url":null,"abstract":"<p><strong>Objective: </strong>To provide an overview of available research about effects of horseshoes on equine kinetics and kinematics.</p><p><strong>Methods: </strong>The terms, \"horse/equine,\" \"hoof,\" \"shoes/horseshoes,\" \"kinetics,\" and \"kinematics\" were searched in PubMed, Web of Science, Center for Agriculture and Bioscience International, and United States Department of Agriculture National Agricultural Library for manuscripts from first availability to 2024. Independent reviewers used preferred reporting items for systematic reviews and meta-analyses guidelines to map and extract evidence-based data from sources. Metrics included participant demographics, research methods, major findings, and study limitations. Knowledge gaps were also identified.</p><p><strong>Results: </strong>A total of 46 studies were included. Most utilized non-lame horses to compare original shoe designs or modifications to unshod or a standard open-heel shoe. Horse demographics and gait, study design and outcome measures varied widely. Prevalent data collection equipment included force platforms and pressure plates, wearable force measuring technology, and videography. Many studies reported shoeing effects on limb forces and motion, but there was little consensus among unrelated studies. Common limitations included insufficient data resolution, no randomization, small sample size, single breed, and outcome measures specific or unique to the study. Knowledge gaps included data collection from all limbs and the impact of conformation and limb and hoof morphology and health condition on outcomes.</p><p><strong>Conclusion: </strong>Information from manuscripts that met inclusion criteria confirmed distinct, variable effects of shoe characteristics on equine gait parameters.</p><p><strong>Clinical significance: </strong>Details from published work can serve as resource for clinical decisions and to guide standardization among investigations on shoe configuration effects on equine motion.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"31-51"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11734879/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142296614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ex vivo biomechanical evaluation of tissue construct strength in an equine colopexy model.","authors":"Hannah M Gaitan, Margaret C Mudge, Alan S Litsky, Andreia G Arruda, Alison K Gardner","doi":"10.1111/vsu.14117","DOIUrl":"10.1111/vsu.14117","url":null,"abstract":"<p><strong>Objective: </strong>To compare strength of left paramedian colopexies using various techniques in equine ex vivo models.</p><p><strong>Study design: </strong>Experimental study.</p><p><strong>Sample population: </strong>Equine cadavers euthanized for nongastrointestinal pathology (36 specimens derived from 9 horses).</p><p><strong>Methods: </strong>Colopexies were performed after euthanasia. Suture pattern (horizontal mattress vs. cruciate) and incorporation of dorsal sheath of the rectus abdominis (partial-thickness) versus incorporation of dorsal and ventral sheath of the rectus abdominis (full-thickness) were evaluated. Single cycle load to failure, work to peak load, stiffness, and mode of failure of colopexy tissue constructs were assessed.</p><p><strong>Results: </strong>Mean load to failure of all constructs ranged from 102.26 to 166.38 N. Partial-thickness bites demonstrated a mean load to failure and standard deviation (SD) of 111.91 (35.88) N and 102.26 (30.06) N (p < .05) which was significantly lower than the mean and SD of full-thickness bites (166.3 [72.42] N and 163.21 [51.40 N]), respectively. All full-thickness bites regardless of suture pattern and over half of partial-thickness bites failed at the colonic wall. There was no significant difference in load to failure compared to mode of failure.</p><p><strong>Conclusion: </strong>A stronger colopexy was achieved with a full-thickness bite regardless of the suture pattern. The most common mode of failure was the colon wall.</p><p><strong>Clinical significance: </strong>Incorporating ventral and dorsal fascia of the rectus abdominus provided a stronger colopexy structure, which may necessitate a second incision or subcutaneous palpation of the needle when performing a colopexy. The lateral band of the colon failed in most constructs (77%) regardless of technique, which could weaken the colonic wall and risk colonic rupture.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"189-198"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11734877/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141555605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current practices in equine minimally invasive soft tissue surgery.","authors":"Eileen S Hackett, Rebecca C McOnie, Nicole J Buote, Susan L Fubini","doi":"10.1111/vsu.14146","DOIUrl":"10.1111/vsu.14146","url":null,"abstract":"<p><p>Equine minimally invasive surgical techniques are frequently utilized in the treatment of a variety of conditions. Standing sedated endoscopic surgery is commonly selected in horses, requiring specialized facilities, anesthetic protocols, and surgeon and assistant expertise. This review examines current methods and potential strategies in equine soft tissue surgery, in which there is an emphasis on laparoscopic urogenital and gastrointestinal diagnostic and therapeutic procedures. Thoracoscopy is less frequently reported in horses and may be underutilized. Optimizing procedures and outcomes in soft tissue surgery relies on innovation and interdisciplinary collaboration. Modern advances in surgical equipment and emerging medical technologies support development in these fields. Participation in continuing education is effective in acquiring and sustaining knowledge and skills and improving clinical practice. Forums with an integrated approach could rapidly expand knowledge across species.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"59-67"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141971955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intrathecal enalapril reduces adhesion formation in experimentally induced digital flexor tendon sheath injuries in horses.","authors":"Jaclyn A Willette, Mayra Tsoi, Daniel Frobish, Ashley R VanderBroek","doi":"10.1111/vsu.14186","DOIUrl":"10.1111/vsu.14186","url":null,"abstract":"<p><strong>Objective: </strong>The objectives of the study were to describe a standing percutaneous adhesion induction model in the digital flexor tendon sheath (DFTS) of horses and to evaluate the effect of intrathecal administration of the angiotensin-converting enzyme (ACE) inhibitor enalapril on tendon healing and adhesion formation.</p><p><strong>Study design: </strong>Randomized, blinded, controlled experimental study.</p><p><strong>Animals: </strong>Eight healthy horses.</p><p><strong>Methods: </strong>A collagenase-induced adhesion model was implemented in the deep digital flexor tendon (DDFT) of both forelimbs under standing ultrasonographic guidance. Daily intrathecal injections of 5 mg enalapril (the treatment condition) were administered to a randomly assigned forelimb for 5 days, with the contralateral limb receiving an equivalent volume of 0.9% NaCl (the control). Lameness and limb circumference were recorded weekly. Horses were euthanized after 8 weeks and evaluated for gross digital flexor tendon sheath (DFTS) adhesions. Tendons were collected for histopathologic scoring of DDFT healing. Paired data were analyzed using a one-sided alternative sign test and longitudinal regression.</p><p><strong>Results: </strong>Multiple DFTS adhesions were formed in control limbs of all horses. The median number of gross DFTS adhesions in treated limbs was less than in control limbs (p = .0039). The average reduction in limb circumference and lameness scores over time occurred faster in treated versus control limbs (p < .025). There were no differences in DDFT histopathologic scores between groups.</p><p><strong>Conclusion: </strong>The standing percutaneous DFTS adhesion induction model demonstrated that intrathecal enalapril reduced DFTS adhesion formation, lameness scores, and limb circumference over time.</p><p><strong>Clinical significance: </strong>Intrathecal enalapril administration may reduce morbidity in horses with naturally occurring tendon injuries.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"141-154"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11734880/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hoof wall masses removal in 30 standing sedated horses: Surgical technique, postoperative complications and long-term outcome.","authors":"Catherine Ross, Jonathan M White, Maria Hibner-Szaltys, Richard S Stephenson, Jonathan M Withers, Marco Marcatili","doi":"10.1111/vsu.14137","DOIUrl":"10.1111/vsu.14137","url":null,"abstract":"<p><strong>Objective: </strong>To describe the surgical technique for removal of hoof wall masses in horses under standing sedation (SS) and local anesthesia (LA), and to report complications and long-term outcome following surgery.</p><p><strong>Study design: </strong>Observational retrospective study.</p><p><strong>Animals: </strong>Client-owned horses (n = 30).</p><p><strong>Methods: </strong>Horses undergoing keratoma removal under SS and LA in a single equine hospital between August 2016 and July 2023 were included in the study. Signalment, affected foot, history of lameness and/or foot abscesses, degree of lameness on admission, imaging findings (radiography and magnetic resonance imaging [MRI] when available), location of the mass, surgical technique, remedial farriery, postoperative care, complications and outcome were recorded. Long-term follow-up information was obtained by telephone questionnaire.</p><p><strong>Results: </strong>A total of 30 horses met the inclusion criteria. Duration of lameness ranged from 1 to 289 days (mean 90 days). The degree of lameness varied from absent to grade 4/5 (AAEP) (mean grade 3/5). All horses underwent preoperative radiographic examination and 14/30 underwent MRI. All horses underwent partial hoof wall resection. The surgery was performed safely in all cases. Postoperative complications included marked lameness in the early postoperative period in 3/30 horses and exuberant granulation tissue formation in 2/30 horses. Long-term (>6 months) follow-up information was available for 28 horses, and 26/28 horses returned to previous levels of exercise. Recurrence was suspected in 1/30 horses.</p><p><strong>Conclusions: </strong>The complication rate was lower than previously reported for keratoma removal under general anesthesia (GA).</p><p><strong>Clinical significance: </strong>Removal of hoof wall masses under SS and LA can be considered as an alternative to removal under GA.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"77-88"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141731475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Significance of incidentally identified bullae and blebs on thoracic computed tomography and prevalence of subsequent pneumothorax in dogs.","authors":"Donough Healy, Laura Ballarini, Petra Agthe, Matteo Cantatore, Alison L Moores","doi":"10.1111/vsu.14144","DOIUrl":"10.1111/vsu.14144","url":null,"abstract":"<p><strong>Objective: </strong>To determine the prevalence of incidentally found pulmonary bullae and blebs (PBBs) in a population of dogs undergoing thoracic computed tomography (CT) for reasons other than presence of pneumothorax and to determine the prevalence of subsequent spontaneous pneumothorax (SP) development.</p><p><strong>Study design: </strong>Retrospective study.</p><p><strong>Animals: </strong>A total of 30 dogs.</p><p><strong>Method: </strong>A total of 2221 CT studies of the sample population were retrospectively assessed for the presence of incidental PBBs between April 2013 and April 2019. Inclusion criteria were complete thoracic CT studies from dogs obtained from the hospital database. Exclusion criteria were concurrent presence of a pneumothorax or severe pulmonary disease preventing assessment for PBBs, an air-filled space related to a pathological process, for example, neoplasm, incomplete CT studies, or no available follow-up. Long term outcome was evaluated using a questionnaire to determine the occurrence of SP post CT examination.</p><p><strong>Results: </strong>Incidental PBBs were identified in 30 out of 2178 (1.4%) CT studies that met the inclusion criteria. None of the dogs subsequently developed clinical evidence of SP (median follow-up time 1255 days, range: 147 to 2363 days). One dog died suddenly of unknown cause and as no post-mortem was performed SP could not be ruled out.</p><p><strong>Conclusion: </strong>There was a low prevalence of incidentally found PBBs in dogs. None of the dogs followed over a long period subsequently developed SP.</p><p><strong>Clinical significance: </strong>Based on this study, prophylactic removal of lung tissue containing incidentally found PPBs is not justified.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"52-58"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of the Vertek aiming device on the surgical accuracy of computer-assisted drilling of the equine distal sesamoid bone-An experimental cadaveric study.","authors":"Mathieu de Preux, Christina Precht, Andrea T Travaglini, Ljubo M Propadalo, Dima Farra, Beatriz Vidondo, Jeremiah T Easley, Christoph Koch","doi":"10.1111/vsu.14176","DOIUrl":"10.1111/vsu.14176","url":null,"abstract":"<p><strong>Objective: </strong>To determine the effect of the Vertek aiming device (VAD) on the surgical accuracy of navigated drilling of the distal sesamoid bone (DSB).</p><p><strong>Study design: </strong>Experimental cadaveric study.</p><p><strong>Sample population: </strong>A total of 30 paired equine cadaveric limbs from 15 horses.</p><p><strong>Methods: </strong>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 repair of a mid-sagittal DSB fracture. In the VAD group navigated drilling was assisted by using the VAD. In the free-hand drilling group navigated drilling was performed without the VAD. Pre-and postoperative CBCT scans were merged and surgical accuracy aberrations (SAA) between the planned drill corridor and the created bone tunnel were measured. Descriptive statistics and repeated-measures analyses of variance (rep.-meas. ANOVA) were performed to compare SAA measurements between the study groups.</p><p><strong>Results: </strong>The SAA measurements ranged from 0 to 2.9 mm in the free-hand group and from 0 to 2.8 mm in the VAD group. The median overall SAA was lower in the VAD group than in the free-hand navigated group (0.6 mm ± [0.5-0.7] vs. 0.8 mm ± [0.7-1], rep.-meas. ANOVA p = .007).</p><p><strong>Conclusion: </strong>The additional use of the VAD in the described set-up for navigated drilling significantly improved surgical accuracy.</p><p><strong>Clinical significance: </strong>The combined use of the VAD and PBF may help improve surgical accuracy in navigated lag screw repair of DSB fractures.</p>","PeriodicalId":23667,"journal":{"name":"Veterinary Surgery","volume":" ","pages":"118-128"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11734870/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142509131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}