[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100544389":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":24,"centralContacts":29,"locations":39,"responsibleParty":271,"collaborators":10,"id":273,"slug":274,"hasResults":275,"nctId":276,"briefTitle":277,"officialTitle":278,"acronym":10,"eligibilityCriteria":279,"healthyVolunteers":275,"sex":280,"minAge":281,"maxAge":10,"enrollmentInfo":282,"targetDuration":10,"studyType":285,"phases":10,"briefSummary":286,"conditions":287,"keywords":10,"overallStatus":42,"whyStopped":10,"lastUpdateSubmitDate":289,"lastUpdatePostDateStruct":290,"startDateStruct":293,"completionDateStruct":295,"leadSponsor":297,"locationsCount":298},{"fullName":5,"class":6},"AO Foundation, AO Spine","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"primary\u002Frevision long-segment posterior TL instrumented fusion with dual-rod constructs",null,"The index surgery for this study is the primary or revision of long-segment posterior TL instrumented fusion using dual-rod construct.",[13],"Procedure: long-segment posterior TL instrumented fusion",{"label":15,"type":10,"description":16,"interventionNames":17},"primary\u002Frevision long-segment posterior TL instrumented fusion with supplementary rod constructs","The index surgery for this study is the primary or revision of long-segment posterior TL instrumented fusion using either a supplementary rod construct.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":10},"PROCEDURE","long-segment posterior TL instrumented fusion","long-segment posterior TL instrumented fusion with either supplementary rod constructs or dual-rod constructs.",[9,15],[25],{"name":26,"affiliation":27,"role":28},"Justin S Smith, MD, PhD","Professor of Neurosurgery Chief of Spine Division, Fellowship Director University of Virginia","PRINCIPAL_INVESTIGATOR",[30,35],{"name":31,"role":32,"phone":33,"phoneExt":10,"email":34},"Alix Frischknecht","CONTACT","+41 79 606 41 48","alix.frischknecht@aofoundation.org",{"name":36,"role":32,"phone":37,"phoneExt":10,"email":38},"Viola Grünenfelder","+41 79 696 33 97","viola.gruenenfelder@aofoundation.org",[40,58,71,83,96,110,123,130,142,159,173,187,200,214,228,240,255],{"facility":41,"status":42,"city":43,"state":44,"zip":45,"country":46,"countryCode":47,"cosmosGeoPoint":48,"geoPoint":53,"contacts":54},"Stanford Spine Clinic","RECRUITING","Redwood City","California","94588","United States","US",{"type":49,"coordinates":50},"Point",[51,52],-122.23635,37.48522,{"lat":52,"lon":51},[55],{"name":56,"role":32,"phone":10,"phoneExt":10,"email":57},"Serena Hu, MD","shu3@stanford.edu",{"facility":59,"status":42,"city":60,"state":44,"zip":61,"country":46,"countryCode":47,"cosmosGeoPoint":62,"geoPoint":66,"contacts":67},"University of California","Sacramento","95819",{"type":49,"coordinates":63},[64,65],-121.4944,38.58157,{"lat":65,"lon":64},[68],{"name":69,"role":32,"phone":10,"phoneExt":10,"email":70},"Yashar Javidan","yjavidan@ucdavis.edu",{"facility":72,"status":42,"city":73,"state":44,"zip":74,"country":46,"countryCode":47,"cosmosGeoPoint":75,"geoPoint":79,"contacts":80},"UCSF Spine Center","San Francisco","94144",{"type":49,"coordinates":76},[77,78],-122.41942,37.77493,{"lat":78,"lon":77},[81],{"name":82,"role":32,"phone":10,"phoneExt":10,"email":10},"Christopher Ames",{"facility":84,"status":42,"city":85,"state":86,"zip":87,"country":46,"countryCode":47,"cosmosGeoPoint":88,"geoPoint":92,"contacts":93},"John Hopkis Hospital","Baltimore","Maryland","21287",{"type":49,"coordinates":89},[90,91],-76.61219,39.29038,{"lat":91,"lon":90},[94],{"name":95,"role":32,"phone":10,"phoneExt":10,"email":10},"Khaled Kebaish",{"facility":97,"status":42,"city":98,"state":99,"zip":100,"country":46,"countryCode":47,"cosmosGeoPoint":101,"geoPoint":105,"contacts":106},"University of Minnesota Medical Center","Minneapolis","Minnesota","55454",{"type":49,"coordinates":102},[103,104],-93.26384,44.97997,{"lat":104,"lon":103},[107],{"name":108,"role":32,"phone":10,"phoneExt":10,"email":109},"David Polly, MD","pollydw@umn.edu",{"facility":111,"status":42,"city":112,"state":113,"zip":114,"country":46,"countryCode":47,"cosmosGeoPoint":115,"geoPoint":119,"contacts":120},"Washington University in St. Louis, School of Medicine","St Louis","Missouri","63110",{"type":49,"coordinates":116},[117,118],-90.19789,38.62727,{"lat":118,"lon":117},[121],{"name":122,"role":32,"phone":10,"phoneExt":10,"email":10},"Brian Neuman",{"facility":124,"status":125,"city":112,"state":113,"zip":126,"country":46,"countryCode":47,"cosmosGeoPoint":127,"geoPoint":129,"contacts":10},"Washington University in St. Louis, School of Medicine, Saint Louis, Missouri 63110","COMPLETED","63310",{"type":49,"coordinates":128},[117,118],{"lat":118,"lon":117},{"facility":131,"status":42,"city":132,"state":132,"zip":133,"country":46,"countryCode":47,"cosmosGeoPoint":134,"geoPoint":138,"contacts":139},"Columbia University \u002F NYP Och Spine Hospital","New York","10032",{"type":49,"coordinates":135},[136,137],-74.00597,40.71427,{"lat":137,"lon":136},[140],{"name":141,"role":32,"phone":10,"phoneExt":10,"email":10},"Zeeshan Sardar",{"facility":143,"status":42,"city":144,"state":145,"zip":146,"country":46,"countryCode":47,"cosmosGeoPoint":147,"geoPoint":151,"contacts":152},"University of Virginia","Charlottesville","Virginia","22908",{"type":49,"coordinates":148},[149,150],-78.47668,38.02931,{"lat":150,"lon":149},[153,156],{"name":26,"role":32,"phone":154,"phoneExt":10,"email":155},"434-243-6339","jss7f@virginia.edu",{"name":157,"role":32,"phone":10,"phoneExt":10,"email":158},"Judith G Beenhakker","JGB3P@uvahealth.org",{"facility":160,"status":42,"city":161,"state":10,"zip":162,"country":163,"countryCode":164,"cosmosGeoPoint":165,"geoPoint":169,"contacts":170},"University of Calgary Spine","Calgary","T2N 2T9","Canada","CA",{"type":49,"coordinates":166},[167,168],-114.08529,51.05011,{"lat":168,"lon":167},[171],{"name":172,"role":32,"phone":10,"phoneExt":10,"email":10},"Ganesh Swamy",{"facility":174,"status":42,"city":175,"state":10,"zip":176,"country":163,"countryCode":164,"cosmosGeoPoint":177,"geoPoint":181,"contacts":182},"University of Toronto","Toronto","M5T 2S8",{"type":49,"coordinates":178},[179,180],-79.39864,43.70643,{"lat":180,"lon":179},[183,185],{"name":184,"role":32,"phone":10,"phoneExt":10,"email":10},"Stephen Lewis",{"name":186,"role":32,"phone":10,"phoneExt":10,"email":10},"Christopher Nielsen",{"facility":188,"status":42,"city":189,"state":10,"zip":10,"country":190,"countryCode":191,"cosmosGeoPoint":192,"geoPoint":196,"contacts":197},"Duchess of Kent Children's Hospital","Hong Kong","China","CN",{"type":49,"coordinates":193},[194,195],114.17469,22.27832,{"lat":195,"lon":194},[198],{"name":199,"role":32,"phone":10,"phoneExt":10,"email":10},"Kenny Kwan",{"facility":201,"status":42,"city":202,"state":10,"zip":10,"country":203,"countryCode":204,"cosmosGeoPoint":205,"geoPoint":209,"contacts":210},"Kothari Medical Centre","Kolkata","India","IN",{"type":49,"coordinates":206},[207,208],88.36304,22.56263,{"lat":208,"lon":207},[211],{"name":212,"role":32,"phone":10,"phoneExt":10,"email":213},"Saumayajit Basu, MD","saumyajitbasu@hotmail.com",{"facility":215,"status":42,"city":216,"state":10,"zip":217,"country":218,"countryCode":219,"cosmosGeoPoint":220,"geoPoint":224,"contacts":225},"Hamamatsu University School of Medicine","Hamamatsu","431-3192","Japan","JP",{"type":49,"coordinates":221},[222,223],137.73333,34.7,{"lat":223,"lon":222},[226],{"name":227,"role":32,"phone":10,"phoneExt":10,"email":10},"Shin Oe",{"facility":229,"status":42,"city":230,"state":10,"zip":231,"country":218,"countryCode":219,"cosmosGeoPoint":232,"geoPoint":236,"contacts":237},"University of Tokyo","Tokyo","113-8654",{"type":49,"coordinates":233},[234,235],139.69171,35.6895,{"lat":235,"lon":234},[238],{"name":239,"role":32,"phone":10,"phoneExt":10,"email":10},"So Kato, Prof",{"facility":241,"status":42,"city":242,"state":10,"zip":243,"country":244,"countryCode":245,"cosmosGeoPoint":246,"geoPoint":250,"contacts":251},"Hospital Vall d´Hebron","Barcelona","08035","Spain","ES",{"type":49,"coordinates":247},[248,249],2.15899,41.38879,{"lat":249,"lon":248},[252],{"name":253,"role":32,"phone":10,"phoneExt":10,"email":254},"Ferran Pellisé, MD","24361fpu@comb.es",{"facility":256,"status":42,"city":257,"state":10,"zip":10,"country":258,"countryCode":10,"cosmosGeoPoint":259,"geoPoint":263,"contacts":264},"Acibadem Maslak Hospital","Istanbul","Turkey (Türkiye)",{"type":49,"coordinates":260},[261,262],28.94966,41.01384,{"lat":262,"lon":261},[265,268],{"name":266,"role":32,"phone":10,"phoneExt":10,"email":267},"Caglar Yilgor, MD","caglaryilgor@gmail.com",{"name":269,"role":32,"phone":10,"phoneExt":10,"email":270},"Ahmet Alanay","aalanay@gmail.com",{"type":272,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR","100544389","durability-of-suppl-rod-constructs-supplementary-rod-technique-for-long-segment-posterior-instrumented-spinal-fusions-100544389",false,"NCT06368245","Durability of Suppl. Rod Constructs-SuppleMentAry Rod Technique for Long-segment Posterior Instrumented Spinal Fusions","Durability of Supplementary Rod Constructs-SuppleMentAry Rod Technique (SMART)-for Long-segment Posterior Instrumented Spinal Fusion Procedures: A Multicenter Retrospective Comparative Study With Dual-rod Constructs","Inclusion Criteria:\n\n* Age 45 years and older.\n* Patients receiving long-segment posterior TL instrumented fusion using either supplementary rod constructs or dual-rod constructs (the index surgery).\n\n  * Long-segment is defined as the UIV at a thoracic level and the LIV at the sacrum\u002Filium.\n  * Supplementary rod constructs are defined as: in addition to the traditional two primary rods, at least one supplementary rod (eg, accessory rods or satellite rods) is used, and at least one supplementary rod and one primary rod (ie, at least two rods) together must span multiple (≥ 2) vertebral levels. The supplementary rod constructs do not include rods connected end-to-end or side-to-side that do not bridge multiple vertebral levels.\n  * The index surgery can be a primary surgery or a revision surgery.\n  * The index surgery, staged or non-staged, must use posterior spinal fusion but can be in combination with other approaches such as an anterior procedure.\n* If the index surgery is a revision surgery, the primary rods must be replaced in the revision surgery, with the exception of Harrington or Luque rods which can remain in place.\n\n  o If the Harrington or Luque rods remain in situ, they must already have the UIV at the thoracic level and the LIV at the sacrum\u002Filium, or an extension of the existing Harrington or Luque is performed such that the UIV is at the thoracic level and the LIV at the sacrum\u002Filium.\n* The index surgery was performed between January 1, 2014, and December 31, 2020, inclusive.\n* Minimum 3 months of FU after the index surgery.\n* Ability to provide informed consent according to the IRB\u002FEC defined and approved procedures if applicable for retrospective data analysis.\n\nExclusion Criteria:\n\n* Spinal fusion performed for acute trauma (ie, ≤ 1 year of trauma).\n* Spinal fusion performed for tumor.\n* Spinal fusion performed for infection.\n* Patients with Parkinson's Disease.\n* Patients with neuromuscular disorders.\n* Patients with spine malignancies requiring chemo- or radiation therapy.","ALL","45 Years",{"count":283,"type":284},1244,"ESTIMATED","OBSERVATIONAL","This is a multicenter retrospective comparative cohort study. The index surgery for this study is primary or revision long-segment posterior thoracolumbar (TL) instrumented fusion using either a supplementary rod construct or a dual-rod construct. Eligible patients who already had index surgery, will be identified for enrollment through a review of medical records of the participating surgeons at the study sites.",[288],"Spinal Fusion","2026-06-29",{"date":291,"type":292},"2026-06-30","ACTUAL",{"date":294,"type":292},"2025-03-24",{"date":296,"type":284},"2029-07-31",{"name":5,"class":6},17]