{"title":"犬单侧双门静脉内窥镜腰骶背侧减压的可行性和安全性：一项尸体研究。","authors":"Byongwook Lee, Haebeom Lee, Jaemin Jeong, Hojung Choi, Daehyun Kim, YoungJin Jeon","doi":"10.2460/ajvr.25.07.0244","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the feasibility and safety of unilateral biportal endoscopic dorsal lumbosacral decompression in dogs.</p><p><strong>Methods: </strong>13 canine cadavers were acquired. Three dogs were used in a pilot study to refine the technique. The remaining 10 were randomly assigned to left- or right-sided procedures. The main study was conducted from November 27 to November 30, 2024, following a pilot study performed 1 month earlier. Preoperative CT aided anatomical assessment and planning. Portal sites were based on the medial pedicle line, connecting the medial borders of the seventh lumbar vertebra and first sacral vertebra pedicles, as identified on dorsoventral radiographs. Unilateral biportal endoscopic dorsal lumbosacral decompression, including dorsal laminectomy, discectomy, and nerve root exploration, was performed. Portal sites, procedural times, and intraoperative complications were recorded. Postoperative CT assessed decompression and facet preservation. A 4-point scoring system (Excellent, Good, Fair, and Poor) was used to evaluate visualization and facet joint preservation.</p><p><strong>Results: </strong>All 10 cadavers were Beagles. All procedures were completed successfully through planned portals. Mean surgery time was 56.3 ± 11.4 minutes. Visualization and facet joint preservation were all rated Excellent. Laminectomy and nerve root exploration times were longer ipsilaterally (17.4 ± 7.2 minutes) than contralaterally (9.6 ± 4.2 minutes), with a mean difference of 7.8 minutes. The mean laminectomy area was significantly larger ipsilaterally (17.6 ± 6.7 mm2) versus contralaterally (10.5 ± 7.3 mm2), with a mean difference of 7.1 mm2. No intraoperative complications occurred.</p><p><strong>Conclusions: </strong>Unilateral biportal endoscopic dorsal lumbosacral decompression was feasible, safe, and provided excellent visualization in canine cadavers.</p><p><strong>Clinical relevance: </strong>Unilateral biportal endoscopic dorsal lumbosacral decompression may represent a viable minimally invasive technique for degenerative lumbosacral stenosis in dogs and warrants further clinical investigation.</p>","PeriodicalId":7754,"journal":{"name":"American journal of veterinary research","volume":" ","pages":"1-9"},"PeriodicalIF":1.4000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Feasibility and safety of unilateral biportal endoscopic dorsal lumbosacral decompression in dogs: a cadaveric study.\",\"authors\":\"Byongwook Lee, Haebeom Lee, Jaemin Jeong, Hojung Choi, Daehyun Kim, YoungJin Jeon\",\"doi\":\"10.2460/ajvr.25.07.0244\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>To evaluate the feasibility and safety of unilateral biportal endoscopic dorsal lumbosacral decompression in dogs.</p><p><strong>Methods: </strong>13 canine cadavers were acquired. Three dogs were used in a pilot study to refine the technique. The remaining 10 were randomly assigned to left- or right-sided procedures. The main study was conducted from November 27 to November 30, 2024, following a pilot study performed 1 month earlier. Preoperative CT aided anatomical assessment and planning. Portal sites were based on the medial pedicle line, connecting the medial borders of the seventh lumbar vertebra and first sacral vertebra pedicles, as identified on dorsoventral radiographs. Unilateral biportal endoscopic dorsal lumbosacral decompression, including dorsal laminectomy, discectomy, and nerve root exploration, was performed. Portal sites, procedural times, and intraoperative complications were recorded. Postoperative CT assessed decompression and facet preservation. A 4-point scoring system (Excellent, Good, Fair, and Poor) was used to evaluate visualization and facet joint preservation.</p><p><strong>Results: </strong>All 10 cadavers were Beagles. All procedures were completed successfully through planned portals. Mean surgery time was 56.3 ± 11.4 minutes. Visualization and facet joint preservation were all rated Excellent. Laminectomy and nerve root exploration times were longer ipsilaterally (17.4 ± 7.2 minutes) than contralaterally (9.6 ± 4.2 minutes), with a mean difference of 7.8 minutes. The mean laminectomy area was significantly larger ipsilaterally (17.6 ± 6.7 mm2) versus contralaterally (10.5 ± 7.3 mm2), with a mean difference of 7.1 mm2. No intraoperative complications occurred.</p><p><strong>Conclusions: </strong>Unilateral biportal endoscopic dorsal lumbosacral decompression was feasible, safe, and provided excellent visualization in canine cadavers.</p><p><strong>Clinical relevance: </strong>Unilateral biportal endoscopic dorsal lumbosacral decompression may represent a viable minimally invasive technique for degenerative lumbosacral stenosis in dogs and warrants further clinical investigation.</p>\",\"PeriodicalId\":7754,\"journal\":{\"name\":\"American journal of veterinary research\",\"volume\":\" \",\"pages\":\"1-9\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"American journal of veterinary research\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.2460/ajvr.25.07.0244\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"VETERINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"American journal of veterinary research","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.2460/ajvr.25.07.0244","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
Feasibility and safety of unilateral biportal endoscopic dorsal lumbosacral decompression in dogs: a cadaveric study.
Objective: To evaluate the feasibility and safety of unilateral biportal endoscopic dorsal lumbosacral decompression in dogs.
Methods: 13 canine cadavers were acquired. Three dogs were used in a pilot study to refine the technique. The remaining 10 were randomly assigned to left- or right-sided procedures. The main study was conducted from November 27 to November 30, 2024, following a pilot study performed 1 month earlier. Preoperative CT aided anatomical assessment and planning. Portal sites were based on the medial pedicle line, connecting the medial borders of the seventh lumbar vertebra and first sacral vertebra pedicles, as identified on dorsoventral radiographs. Unilateral biportal endoscopic dorsal lumbosacral decompression, including dorsal laminectomy, discectomy, and nerve root exploration, was performed. Portal sites, procedural times, and intraoperative complications were recorded. Postoperative CT assessed decompression and facet preservation. A 4-point scoring system (Excellent, Good, Fair, and Poor) was used to evaluate visualization and facet joint preservation.
Results: All 10 cadavers were Beagles. All procedures were completed successfully through planned portals. Mean surgery time was 56.3 ± 11.4 minutes. Visualization and facet joint preservation were all rated Excellent. Laminectomy and nerve root exploration times were longer ipsilaterally (17.4 ± 7.2 minutes) than contralaterally (9.6 ± 4.2 minutes), with a mean difference of 7.8 minutes. The mean laminectomy area was significantly larger ipsilaterally (17.6 ± 6.7 mm2) versus contralaterally (10.5 ± 7.3 mm2), with a mean difference of 7.1 mm2. No intraoperative complications occurred.
Conclusions: Unilateral biportal endoscopic dorsal lumbosacral decompression was feasible, safe, and provided excellent visualization in canine cadavers.
Clinical relevance: Unilateral biportal endoscopic dorsal lumbosacral decompression may represent a viable minimally invasive technique for degenerative lumbosacral stenosis in dogs and warrants further clinical investigation.
期刊介绍：
The American Journal of Veterinary Research supports the collaborative exchange of information between researchers and clinicians by publishing novel research findings that bridge the gulf between basic research and clinical practice or that help to translate laboratory research and preclinical studies to the development of clinical trials and clinical practice. The journal welcomes submission of high-quality original studies and review articles in a wide range of scientific fields, including anatomy, anesthesiology, animal welfare, behavior, epidemiology, genetics, heredity, infectious disease, molecular biology, oncology, pharmacology, pathogenic mechanisms, physiology, surgery, theriogenology, toxicology, and vaccinology. Species of interest include production animals, companion animals, equids, exotic animals, birds, reptiles, and wild and marine animals. Reports of laboratory animal studies and studies involving the use of animals as experimental models of human diseases are considered only when the study results are of demonstrable benefit to the species used in the research or to another species of veterinary interest. Other fields of interest or animals species are not necessarily excluded from consideration, but such reports must focus on novel research findings. Submitted papers must make an original and substantial contribution to the veterinary medicine knowledge base; preliminary studies are not appropriate.
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