[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100587144":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":20,"centralContacts":27,"locations":33,"responsibleParty":121,"collaborators":125,"id":129,"slug":130,"hasResults":131,"nctId":132,"briefTitle":133,"officialTitle":134,"acronym":135,"eligibilityCriteria":136,"healthyVolunteers":131,"sex":137,"minAge":10,"maxAge":10,"enrollmentInfo":138,"targetDuration":141,"studyType":142,"phases":10,"briefSummary":143,"conditions":144,"keywords":147,"overallStatus":154,"whyStopped":10,"lastUpdateSubmitDate":155,"lastUpdatePostDateStruct":156,"startDateStruct":159,"completionDateStruct":161,"leadSponsor":163,"locationsCount":164},{"fullName":5,"class":6},"Sahlgrenska University Hospital","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Study group",null,"Patients with painful THA, scheduled for reviision hip arthoplasty, with no signs of obvious implant loosening in either the cup or the stem.",[13],"Diagnostic Test: Implant motion provocation CT",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":10},"DIAGNOSTIC_TEST","Implant motion provocation CT","Implant Movement Analysis. A low dose CT scan is performed with the hip fixed in external rotation. Then another low dose CT scan is performed with the hip fixed in internal rotation.The CT scans are then overimposed to each other and implant motion in relation to host bone is visualized,",[9],[21,24],{"name":22,"affiliation":5,"role":23},"Henrik Malchau, MD, PhD","STUDY_CHAIR",{"name":25,"affiliation":5,"role":26},"Georgios Tsikandylakis","PRINCIPAL_INVESTIGATOR",[28],{"name":29,"role":30,"phone":31,"phoneExt":10,"email":32},"Linda Andersson, BMA","CONTACT","0762756531","linda.mr.andersson@vgregion.se",[34,50,65,83,95,107],{"facility":35,"status":10,"city":36,"state":10,"zip":10,"country":37,"countryCode":38,"cosmosGeoPoint":39,"geoPoint":44,"contacts":45},"Hvidovre Hospital","Copenhagen","Denmark","DK",{"type":40,"coordinates":41},"Point",[42,43],12.56553,55.67594,{"lat":43,"lon":42},[46],{"name":47,"role":30,"phone":48,"phoneExt":10,"email":49},"Anders Troelsen, PhD","+45 38 62 67 74","Anders.Troelsen@regionh.dk",{"facility":51,"status":10,"city":52,"state":10,"zip":10,"country":53,"countryCode":54,"cosmosGeoPoint":55,"geoPoint":59,"contacts":60},"Oslo University Hospital","Oslo","Norway","NO",{"type":40,"coordinates":56},[57,58],10.74609,59.91273,{"lat":58,"lon":57},[61],{"name":62,"role":30,"phone":63,"phoneExt":10,"email":64},"Stephan M Röhrl, PhD","+47 22 22 09 87","s.m.rohrl@medisin.uio.no",{"facility":5,"status":10,"city":66,"state":10,"zip":67,"country":68,"countryCode":69,"cosmosGeoPoint":70,"geoPoint":74,"contacts":75},"Gothenburg","41345","Sweden","SE",{"type":40,"coordinates":71},[72,73],11.96679,57.70716,{"lat":73,"lon":72},[76,78,80],{"name":29,"role":30,"phone":77,"phoneExt":10,"email":32},"0046762756531",{"name":79,"role":26,"phone":10,"phoneExt":10,"email":10},"Georgios Tsikandylakis, MD, PhD",{"name":81,"role":82,"phone":10,"phoneExt":10,"email":10},"Raéd Itayem, MD, PhD","SUB_INVESTIGATOR",{"facility":84,"status":10,"city":85,"state":10,"zip":10,"country":68,"countryCode":69,"cosmosGeoPoint":86,"geoPoint":90,"contacts":91},"Hässleholm Hospital","Hässleholm",{"type":40,"coordinates":87},[88,89],13.76638,56.15905,{"lat":89,"lon":88},[92,94],{"name":93,"role":30,"phone":10,"phoneExt":10,"email":10},"Maziar Mohaddes, MD, PhD",{"name":93,"role":26,"phone":10,"phoneExt":10,"email":10},{"facility":96,"status":10,"city":97,"state":10,"zip":10,"country":68,"countryCode":69,"cosmosGeoPoint":98,"geoPoint":102,"contacts":103},"Danderyd Hospital","Stockholm",{"type":40,"coordinates":99},[100,101],18.06871,59.32938,{"lat":101,"lon":100},[104,106],{"name":105,"role":30,"phone":10,"phoneExt":10,"email":10},"Olof Sköldenberg, MD, PhD",{"name":105,"role":26,"phone":10,"phoneExt":10,"email":10},{"facility":108,"status":10,"city":109,"state":10,"zip":10,"country":68,"countryCode":69,"cosmosGeoPoint":110,"geoPoint":114,"contacts":115},"Akademiska University Hospital","Uppsala",{"type":40,"coordinates":111},[112,113],17.63889,59.85882,{"lat":113,"lon":112},[116,119],{"name":117,"role":30,"phone":10,"phoneExt":10,"email":118},"Cyrus Brodén, MD, PhD","cyrus.broden@akademiska.se",{"name":120,"role":26,"phone":10,"phoneExt":10,"email":10},"Cyrus Brodén, M, PhDD",{"type":122,"investigatorFullName":123,"investigatorTitle":124,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"SPONSOR_INVESTIGATOR","Georgios Tsikandylakis, MD PhD","Senior Consultant in Orthopaedics",[126],{"name":127,"class":128},"Sectra AB, Sweden","UNKNOWN","100587144","radiographic-stability-of-hip-prosthesis-prior-to-revision-surgery-100587144",false,"NCT06924567","Radiographic Stability of Hip Prosthesis Prior to Revision Surgery","The Accuracy of CT-based Implant Movement for the Evaluation of Cup and Stem Stability, When Plain Radiography is Not Conclusive for Loosening, in Patients Scheduled for Revision Hip Arthroplasty. A Multicenter Study","MULTICIMA","Inclusion criteria:\n\n* Patient scheduled for revision THA due to aseptic loosening.\n* One component (cup or stem) has no convincing loosening signs, based on the preoperative plain radiographs and clinical assessment by the attending surgeon.\n* Radiographs not older than 8 weeks prior to surgery.\n\nExclusion criteria:\n\n* Both cup and stem have been preoperatively evaluated as loose\n* Instability with repeating dislocation of the THA\n* Non-aseptic revision surgery, based on preoperative work up.\n* The scheduled revisionsurgery is cancelled.","ALL",{"count":139,"type":140},600,"ESTIMATED","2 Months","OBSERVATIONAL","The goal of this validation study is to compare the preoperative implant stability, assessed by Implant Movement Analysis (IMA), provocation dual CT scans, with the intraoperative stability evaluation in revision hip arthoplasty. The main question it aims to answer is:\n\nDoes IMA reflect the intraoperative clinical evaluation of implant stability? Participants scheduled for revision hip arthoplasty will undergo IMA preoperativelly in addition to rutine clinical work up. During revision arthoplasty, a surgeon blinded to the IMA results will assess clinically the stability of the hip prosthesis. IMA will be compared with the intraoperative findings to assess IMAs sensitivity and specificity",[145,146],"Loosening, Prosthesis","Hip Arthropathy",[148,149,150,151,152,153],"implant stabilty","THA","radiographic evaluation","IMA","Implant Movement Analysis","Revision THA","NOT_YET_RECRUITING","2026-03-10",{"date":157,"type":158},"2026-03-12","ACTUAL",{"date":160,"type":140},"2026-09-15",{"date":162,"type":140},"2029-12-31",{"name":123,"class":6},6]