[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100606149":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":29,"centralContacts":34,"locations":24,"responsibleParty":40,"collaborators":24,"id":44,"slug":45,"hasResults":46,"nctId":47,"briefTitle":48,"officialTitle":49,"acronym":24,"eligibilityCriteria":50,"healthyVolunteers":51,"sex":52,"minAge":53,"maxAge":24,"enrollmentInfo":54,"targetDuration":24,"studyType":57,"phases":58,"briefSummary":60,"conditions":61,"keywords":24,"overallStatus":68,"whyStopped":24,"lastUpdateSubmitDate":69,"lastUpdatePostDateStruct":70,"startDateStruct":73,"completionDateStruct":75,"leadSponsor":77,"locationsCount":24},{"fullName":5,"class":6},"Cantonal Hospital of St. Gallen","OTHER",[8,14],{"label":9,"type":6,"description":10,"interventionNames":11},"Three-Dimensional Endoscopy First, Then Two-Dimensional","Participants first perform standardized spinal endoscopic simulation tasks using a stereoscopic three-dimensional (3D) endoscopic system providing binocular depth perception via dual optical channels and polarized glasses. After completing all tasks under 3D visualization, the same participants subsequently repeat the identical tasks using conventional two-dimensional (2D) visualization on the same high-definition endoscopic platform",[12,13],"Device: Three-Dimensional Endoscopic Visualization","Device: Two-Dimensional Endoscopic Visualization",{"label":15,"type":6,"description":16,"interventionNames":17},"Two-Dimensional Endoscopy First, Then Three-Dimensional","Participants first perform standardized spinal endoscopic simulation tasks using conventional two-dimensional (2D) visualization, with stereoscopic capability deactivated, displaying a monoscopic high-definition image. After completing all tasks under 2D visualization, the same participants subsequently repeat the identical tasks using stereoscopic three-dimensional (3D) visualization on the same endoscopic platform, viewed with polarized glasses.",[12,13],[19,25],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"DEVICE","Three-Dimensional Endoscopic Visualization","Use of a stereoscopic 3D high-definition endoscopic system with dual optical channels, projecting to a stereoscopic monitor viewed with polarized glasses, to perform standardized spinal simulation tasks.",[9,15],null,{"type":20,"name":26,"description":27,"armGroupLabels":28,"otherNames":24},"Two-Dimensional Endoscopic Visualization","Use of the same high-definition endoscopic system with stereoscopic function deactivated, providing conventional monoscopic two-dimensional visualization, to perform standardized spinal simulation tasks.",[9,15],[30],{"name":31,"affiliation":32,"role":33},"Stefan Motov, MD","Kantonsspital St. Gallen, Health Ostschweiz","PRINCIPAL_INVESTIGATOR",[35],{"name":36,"role":37,"phone":38,"phoneExt":24,"email":39},"Felix Corr, MD, MSc.","CONTACT","+41 71 494 1636","felix.corr@h-och.ch",{"type":41,"investigatorFullName":42,"investigatorTitle":43,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"SPONSOR_INVESTIGATOR","Felix Corr","Stefan Motov","100606149","comparing-3d-and-2d-views-in-biportal-spine-surgery-a-pilot-simulation-study-100606149",false,"NCT07171801","Comparing 3D and 2D Views in Biportal Spine Surgery: A Pilot Simulation Study","3D vs. 2D Unilateral Biportal Endoscopic Spine Surgery: A Randomized Blinded Crossover Pilot Simulation Study","Inclusion Criteria:\n\n* Enrolled in the neurosurgical residency or fellowship program at the Department of Neurosurgery, Cantonal Hospital of St. Gallen, Switzerland\n* Completion of basic neurosurgical training modules, including introductory endoscopic handling\n* Age ≥ 18 years\n* Willingness and ability to provide informed consent\n\nExclusion Criteria:\n\n* Prior substantial experience with three-dimensional (3D) endoscopy (defined as \\> 5 independent procedures performed with 3D visualization systems)\n* Ocular or neurological conditions impairing stereopsis, fine motor control, or safe endoscope handling\n* Inability or unwillingness to complete the simulation protocol\n* Declined participation",true,"ALL","18 Years",{"count":55,"type":56},6,"ESTIMATED","INTERVENTIONAL",[59],"NA","This study aims to compare three-dimensional (3D) and two-dimensional (2D) visualization in biportal endoscopic spine surgery using a simulated environment. Surgeons will perform standardized tasks on a spine model while using either 3D or 2D endoscopic systems. The goal is to determine whether 3D technology can improve precision, efficiency, and movement control during surgery. The study uses a randomized, blinded, crossover design to ensure objective results and may help guide future training and technology use in spinal endoscopy.",[62,63,64,65,66,67],"Spinal Diseases","Endoscopy Simulation","Lumbar Vertebrae","Randomized Controlled Trial","Three-Dimensional","Simulation Training","NOT_YET_RECRUITING","2025-09-15",{"date":71,"type":72},"2025-09-16","ACTUAL",{"date":74,"type":56},"2025-10-01",{"date":76,"type":56},"2025-12-01",{"name":42,"class":6}]