[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"bilateral-lumbar-arthrodesis\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:bilateral-lumbar-arthrodesis":25},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":13,"acronym":14,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":4,"enrollmentInfo":18,"targetDuration":4,"studyType":21,"phases":4,"briefSummary":22,"conditions":23,"keywords":4,"overallStatus":26,"whyStopped":4,"lastUpdateSubmitDate":27,"lastUpdatePostDateStruct":28,"startDateStruct":31,"completionDateStruct":33,"leadSponsor":35,"locationsCount":5},"100657896","combined-analysis-of-retrospective-and-prospective-data-from-patients-who-underwent-facet-arthroplasty-with-the-tops-system-or-the-tops--versalink-fixation-system-at-a-single-center-100657896",false,"NCT07845344","Combined Analysis of Retrospective and Prospective Data From Patients Who Underwent Facet Arthroplasty With the TOPS™ System or the TOPS + Versalink™ Fixation System at a Single Center.","TOPS","Inclusion Criteria:\n\n* Male or female patient aged over 18 years,\n* All consecutively treated patients who underwent facet arthroplasty using the TOPS™ system or the TOPS™ system + VersaLink™ system at a single center, and for whom the surgery was performed at least 6 months prior to the start of data collection,\n* Patient who has received written information and has not objected to participating in the study,\n* Patient capable of understanding the study and answering the Zurich Claudication Questionnaire,\n* Patient affiliated with or a beneficiary of a social security scheme.\n\nExclusion Criteria:\n\n* Minor patient,\n* Patient treated consecutively who received the TOPS™ system or the TOPS™ system + Versalink™ fixation system at multiple surgical centers,\n* Patient refusal to participate in the study,\n* Protected patient: adult under guardianship, curatorship, or other legal protection; deprived of liberty by judicial or administrative decision,\n* Pregnant, breastfeeding, or recently delivered woman.","ALL","18 Years",{"count":19,"type":20},200,"ESTIMATED","OBSERVATIONAL","The TOPS™ system is an alternative to spinal fusion designed to stabilize-rather than fuse-the affected vertebral level, thereby relieving pain caused by degenerative spondylolisthesis and spinal stenosis. Degenerative spondylolisthesis involves abnormal, excessive vertebral movement, resulting in lower back and leg pain.\n\nSpinal stenosis is a condition in which nerve compression causes symptoms such as pain, numbness, and tingling in the legs. The TOPS system is intended to provide stabilization for skeletally mature patients with single-level disease (L3-L5) who have not achieved sufficient symptom relief through prior conservative care. The Total Posterior Spine System (\"TOPS™ system\") received CE marking and has been commercially available since 2012; it also received US FDA approval in June 2023.\n\nThe Versalink™ fixation system is a bilateral titanium lumbar fusion system designed for use with a titanium cross-link as a standalone fusion device. It is also designed to connect above or below the TOPS™ device to form a hybrid construct.\n\nThe TOPS system is designed to restore lumbar spine stability while allowing for spinal canal decompression (laminectomy\u002Ffacetectomy).\n\nBy using the TOPS™ system, the surgeon can remove pathological bony elements and implant a posterior spine replacement technology that effectively recreates load-bearing dynamics and spinal biomechanics, thereby preserving mobility in the treated segment.",[24,25],"Spinal Stenosis","Bilateral Lumbar Arthrodesis","NOT_YET_RECRUITING","2026-09-21",{"date":29,"type":30},"2026-09-28","ACTUAL",{"date":32,"type":20},"2026-10-30",{"date":34,"type":20},"2027-11-30",{"name":36,"class":37},"GCS Ramsay Santé pour l'Enseignement et la Recherche","OTHER"]