[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100646563":3},{"organization":4,"armGroups":7,"interventions":13,"overallOfficials":10,"centralContacts":19,"locations":26,"responsibleParty":46,"collaborators":10,"id":48,"slug":49,"hasResults":50,"nctId":51,"briefTitle":52,"officialTitle":53,"acronym":10,"eligibilityCriteria":54,"healthyVolunteers":50,"sex":55,"minAge":56,"maxAge":10,"enrollmentInfo":57,"targetDuration":10,"studyType":60,"phases":10,"briefSummary":61,"conditions":62,"keywords":10,"overallStatus":29,"whyStopped":10,"lastUpdateSubmitDate":66,"lastUpdatePostDateStruct":67,"startDateStruct":70,"completionDateStruct":72,"leadSponsor":74,"locationsCount":75},{"fullName":5,"class":6},"Centre Hospitalier Universitaire de Nice","OTHER",[8],{"label":9,"type":10,"description":10,"interventionNames":11},"Patients with low-back sciatica referred for CT-guided infiltration",null,[12],"Diagnostic Test: Pre-infiltration lumbar planning CT scan - reading of the three nerve-root signs",[14],{"type":15,"name":16,"description":17,"armGroupLabels":18,"otherNames":10},"DIAGNOSTIC_TEST","Pre-infiltration lumbar planning CT scan - reading of the three nerve-root signs","Retrospective analysis of the planning CT scans performed before CT-guided foraminal\u002Fperi-radicular infiltration. Reading by the operating radiologists (4th-, 5th- and 6th-year radiology residents) assessing, next to the symptomatic nerve root, three signs (present\u002Fabsent): root size asymmetry\u002Fhypertrophy; peri-radicular infiltration; spontaneous hyperdensity. No additional procedure for the patient.",[9],[20],{"name":21,"role":22,"phone":23,"phoneExt":24,"email":25},"kevin desalos","CONTACT","06 87 63 05 74","+ 33","kevindesalos@gmail.com",[27],{"facility":28,"status":29,"city":30,"state":31,"zip":32,"country":33,"countryCode":34,"cosmosGeoPoint":35,"geoPoint":40,"contacts":41},"CHU NICE","RECRUITING","Nice","Alpes Maritimes","06000","France","FR",{"type":36,"coordinates":37},"Point",[38,39],7.26608,43.70313,{"lat":39,"lon":38},[42,43],{"name":21,"role":22,"phone":23,"phoneExt":24,"email":25},{"name":44,"role":22,"phone":23,"phoneExt":45,"email":25},"CHU de Nice","+33",{"type":47,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR","100646563","three-ct-signs-of-nerve-root-suffering-in-low-back-sciatica-a-study-of-their-frequency-in-patients-referred-for-ct-guided-nerve-root-infiltration-100646563",false,"NCT07690449","Three CT Signs of Nerve-root Suffering in Low-back Sciatica: a Study of Their Frequency in Patients Referred for CT-guided Nerve-root Infiltration.","Prevalence of Three CT Signs of Nerve-root Suffering (Root Size Asymmetry\u002FHypertrophy, Peri-radicular Infiltration, Spontaneous Hyperdensity) in Patients With Low-back Sciatica Referred for CT-guided Foraminal Infiltration: a Single-centre Retrospective Study (Nice University Hospital - Pasteur 2).","Inclusion Criteria:\n\n* Adult (\\>= 18 years)\n* Low-back sciatica \u002F radicular pain with a systematized distribution\n* Referred for CT-guided foraminal or peri-radicular infiltration at Pasteur 2 Hospital (Nice) between 30 Jan 2024 and 11 Jul 2024.\n* Available and interpretable pre-infiltration planning CT\n\nExclusion Criteria:\n\n* Planning CT missing or not interpretable\n* Missing data on the three studied signs\n* Radicular pain of tumoral, infectious or recent traumatic origin\n* Spinal history precluding analysis of the studied root","ALL","18 Years",{"count":58,"type":59},400,"ESTIMATED","OBSERVATIONAL","Retrospective, observational, single-centre study conducted at Nice University Hospital (Pasteur 2), Department of Diagnostic and Interventional Radiology. Objective: to assess the prevalence of three CT signs sought next to the clinically suspected nerve root in patients with low-back sciatica referred for CT-guided foraminal\u002Fperi-radicular infiltration: (1) nerve-root size asymmetry\u002Fhypertrophy, (2) peri-radicular infiltration, and (3) spontaneous root hyperdensity. Hypothesis: these signs are associated with the suffering nerve root responsible for the clinical presentation. Pre-infiltration planning CT scans (period 30 Jan 2024 - 11 Jul 2024) are reviewed by the operating radiologists (4th-, 5th- and 6th-year residents). Target enrollment: 400 patients. Data analysed to date: 104 patients \u002F 105 infiltrations. Preliminary prevalence: root asymmetry\u002Fhypertrophy 45.5%; peri-radicular infiltration 50.5%; spontaneous hyperdensity 23.8%; at least 2 of 3 signs 38.6%; all 3 signs 16.8%. Mean age 65 years (range 25-93); approximately 62 women \u002F 42 men; predominant levels L4-L5 and L5-S1.",[63,64,65],"Sciatica","Lumbosacral Radiculopathy","Low Back Pain","2026-07-01",{"date":68,"type":69},"2026-07-08","ACTUAL",{"date":71,"type":69},"2024-01-30",{"date":73,"type":59},"2026-10-01",{"name":5,"class":6},1]