[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100651044":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":21,"centralContacts":26,"locations":20,"responsibleParty":36,"collaborators":20,"id":38,"slug":39,"hasResults":40,"nctId":41,"briefTitle":42,"officialTitle":43,"acronym":44,"eligibilityCriteria":45,"healthyVolunteers":40,"sex":46,"minAge":47,"maxAge":20,"enrollmentInfo":48,"targetDuration":20,"studyType":51,"phases":52,"briefSummary":54,"conditions":55,"keywords":57,"overallStatus":62,"whyStopped":20,"lastUpdateSubmitDate":63,"lastUpdatePostDateStruct":64,"startDateStruct":67,"completionDateStruct":69,"leadSponsor":71,"locationsCount":20},{"fullName":5,"class":6},"Groupe Hospitalier Diaconesses Croix Saint-Simon","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Hallux valgus","EXPERIMENTAL","patients consulting for hallux valgus",[13],"Procedure: Surgical correction of hallux valgus via osteotomy",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":20},"PROCEDURE","Surgical correction of hallux valgus via osteotomy","A prospective, non-comparative, single-center interventional study involving human subjects and entailing minimal risk and burden (RIPH2).\n\nThe interventions introduced by the research consist of:\n\n1. Performing a mini-surface scan during the 6-week postoperative consultation.\n2. Scheduling the patient for a 6-month consultation.\n3. Performing a mini-surface scan during the 6-month postoperative consultation.\n4. Measuring shoe size using a foot-measuring device preoperatively, and tracking both reported and measured (using the device) shoe size postoperatively at 6 weeks and 6 months.",[9],null,[22],{"name":23,"affiliation":24,"role":25},"Antoine MOUTON","Diaconesses Croix Saint Simon Hospital Group","PRINCIPAL_INVESTIGATOR",[27,32],{"name":28,"role":29,"phone":30,"phoneExt":20,"email":31},"Younes KERROUMI, Clinical Research Physician","CONTACT","+33144643384","ykerroumi@hopital-dcss.org",{"name":33,"role":29,"phone":34,"phoneExt":20,"email":35},"Meriem BAKHTI, Clinical Research Technician","+33144641603","mbakhti@hopital-dcss.org",{"type":37,"investigatorFullName":20,"investigatorTitle":20,"investigatorAffiliation":20,"oldNameTitle":20,"oldOrganization":20},"SPONSOR","100651044","change-in-shoe-size-and-forefoot-morphological-parameters-after-scarf--p1-osteotomy-for-hallux-valgus-a-prospective-study-using-surface-3d-scanning-100651044",false,"NCT07755488","Change in Shoe Size and Forefoot Morphological Parameters After Scarf + P1 Osteotomy for Hallux Valgus: a Prospective Study Using Surface 3D Scanning","Changes in Shoe Size and Forefoot Morphological Parameters After Scarf + P1 Osteotomy for Hallux Valgus: A Prospective Study Using Surface 3D Scanning","POINTURE-HV","Inclusion Criteria:\n\n* Patient informed about the study and signed written consent obtained in duplicate\n* Male or female participant aged 18 years or older\n* Symptomatic hallux valgus without lateral ray involvement, requiring surgical correction by Scarf + P1 osteotomy\n* Primary surgery planned for the affected foot\n* Ability to understand study information, complete questionnaires, and comply with follow-up visits (6 weeks and 6 months)\n\nExclusion Criteria:\n\n* Previous bony surgery of the first ray or forefoot on the affected side (osteotomy, arthrodesis)\n* Surgical indication on lateral rays (claw toes, Weil osteotomy)\n* Severe lower-limb neurological or vascular disease altering gait or foot morphology (Charcot foot, critical limb ischemia, severe neuropathy)\n* Active inflammatory rheumatic disease (e.g., rheumatoid arthritis) with polyarticular foot involvement\n* Complex foot deformity requiring primary first metatarsophalangeal (MTP1) arthrodesis or procedure other than Scarf + P1 osteotomy\n* Pregnant or breastfeeding woman\n* Person under legal guardianship or unable to provide free and informed consent\n* Person deprived of liberty by judicial or administrative decision\n* Concurrent participation in another research study that could interfere with study endpoints","ALL","18 Years",{"count":49,"type":50},100,"ESTIMATED","INTERVENTIONAL",[53],"NA","Background and Rationale:\n\nSurgical correction of Hallux Valgus via Scarf and P1 osteotomy aims to realign the first ray, modifying overall forefoot morphology. While radiological correction is well established, a discrepancy often exists between objective foot measurements and patient-perceived postoperative shoe fitting. Weight-bearing 3D surface scanning provides a non-irradiating, precise method to evaluate volumetric and dimensional changes without the biases of traditional foot-measuring gauges.\n\nObjective and Hypothesis:\n\nThe primary objective is to measure changes in shoe size (in French\u002FParis points) using weight-bearing 3D surface scanning between baseline and 6 months postoperatively. The study hypothesis is that Scarf + P1 osteotomy induces a shoe size reduction of at least 0.5 Paris points at 6 months, correlated with forefoot width reduction, M1 shortening, and angular correction (HVA and M1-M2 angles).\n\nStudy Design:\n\nProspective, single-center, non-comparative interventional study with minimal risks and constraints (RIPH 2) involving 100 participants.",[56],"Hallux Valgus",[56,58,59,60,61],"Scarf Osteotomy","3D Surface Scanner","Shoe Size","Forefoot Morphometry","NOT_YET_RECRUITING","2026-08-05",{"date":65,"type":66},"2026-08-10","ACTUAL",{"date":68,"type":50},"2026-09-20",{"date":70,"type":50},"2027-12-31",{"name":5,"class":6}]