[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"thoracolumbar-spinal-fusion\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:thoracolumbar-spinal-fusion":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":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":23,"conditions":24,"keywords":26,"overallStatus":37,"whyStopped":4,"lastUpdateSubmitDate":38,"lastUpdatePostDateStruct":39,"startDateStruct":42,"completionDateStruct":44,"leadSponsor":46,"locationsCount":49},"100657467","retrospective-evaluation-of-upper-instrumented-vertebrae-uiv-screw-loosening-following-spine-surgery-100657467",false,"NCT07838571","Retrospective Evaluation of Upper Instrumented Vertebrae (UIV) Screw Loosening Following Spine Surgery","REESE - Retrospective Evaluation of Upper Instrumented Vertebrae (UIV) Screw Loosening Following Spine Surgery","REESE","Inclusion Criteria:\n\n* ≥ 18 years of age at the time surgery\n* Underwent thoracolumbar spinal fusion with bilateral screws at the UIV\n\n  1. Construct \\\u003C4 levels ending at the sacrum may be treated with or without pelvic fixation\n  2. Constructs ≥4 levels ending at the sacrum must include pelvic fixation\n  3. Constructs not ending at the sacrum may be included\n* Patient must have a minimum of 12-month follow-up including imaging (AP and lateral x-rays)\n\nExclusion Criteria:\n\n* Treated for high grade (grade III, IV, or V) spondylolisthesis\n* Diagnosed with primary or metastatic tumor involving the spine, history of spinal malignancy, or active cancer at the time of surgery","ALL","18 Years",{"count":20,"type":21},400,"ESTIMATED","OBSERVATIONAL","The REESE study is looking at information from past spine surgeries to learn how often screws placed at the top of a spinal fusion become loose over time. Researchers will review existing medical records and X-rays from adults who have already had thoracolumbar spinal fusion surgery. The study will also look at factors that may increase the risk of screw loosening and whether it leads to additional complications or surgeries. No new procedures, treatments, or patient visits are required because the study uses information that has already been collected during routine medical care.",[25],"Thoracolumbar Spinal Fusion",[27,28,29,30,31,32,33,34,35,36],"UIV","Thoracolumbar Fusion","Upper Instrumented Vertebra","Proximal junctional kyphosis (PJK)","proximal junctional failure (PJF)","Spine Surgery","Screw Lucency","Pedicle Screw Loosening","Adult Spinal Deformity","Instrumentation Failure","NOT_YET_RECRUITING","2026-09-18",{"date":40,"type":41},"2026-09-24","ACTUAL",{"date":43,"type":21},"2026-09",{"date":45,"type":21},"2027-12",{"name":47,"class":48},"Ohio State University","OTHER",3]