- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07755488
Change in Shoe Size and Forefoot Morphological Parameters After Scarf + P1 Osteotomy for Hallux Valgus: a Prospective Study Using Surface 3D Scanning (POINTURE-HV)
Changes in Shoe Size and Forefoot Morphological Parameters After Scarf + P1 Osteotomy for Hallux Valgus: A Prospective Study Using Surface 3D Scanning
Background and Rationale:
Surgical 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.
Objective and Hypothesis:
The primary objective is to measure changes in shoe size (in French/Paris 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).
Study Design:
Prospective, single-center, non-comparative interventional study with minimal risks and constraints (RIPH 2) involving 100 participants.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Younes KERROUMI, Clinical Research Physician
- Numéro de téléphone: +33144643384
- E-mail: ykerroumi@hopital-dcss.org
Sauvegarde des contacts de l'étude
- Nom: Meriem BAKHTI, Clinical Research Technician
- Numéro de téléphone: +33144641603
- E-mail: mbakhti@hopital-dcss.org
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- Patient informed about the study and signed written consent obtained in duplicate
- Male or female participant aged 18 years or older
- Symptomatic hallux valgus without lateral ray involvement, requiring surgical correction by Scarf + P1 osteotomy
- Primary surgery planned for the affected foot
- Ability to understand study information, complete questionnaires, and comply with follow-up visits (6 weeks and 6 months)
Exclusion Criteria:
- Previous bony surgery of the first ray or forefoot on the affected side (osteotomy, arthrodesis)
- Surgical indication on lateral rays (claw toes, Weil osteotomy)
- Severe lower-limb neurological or vascular disease altering gait or foot morphology (Charcot foot, critical limb ischemia, severe neuropathy)
- Active inflammatory rheumatic disease (e.g., rheumatoid arthritis) with polyarticular foot involvement
- Complex foot deformity requiring primary first metatarsophalangeal (MTP1) arthrodesis or procedure other than Scarf + P1 osteotomy
- Pregnant or breastfeeding woman
- Person under legal guardianship or unable to provide free and informed consent
- Person deprived of liberty by judicial or administrative decision
- Concurrent participation in another research study that could interfere with study endpoints
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Recherche sur les services de santé
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Hallux valgus
patients consulting for hallux valgus
|
A prospective, non-comparative, single-center interventional study involving human subjects and entailing minimal risk and burden (RIPH2). The interventions introduced by the research consist of:
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Change in Weight-Bearing 3D Surface Scan Shoe Size at 6 Months Postoperatively
Délai: Baseline (preoperative) and 6 months postoperatively
|
Mean change in shoe size (expressed in French size points / Paris points) measured objectively using a weight-bearing 3D surface scanner between baseline (preoperative) and 6 months postoperatively.
The proportion of patients experiencing a clinically significant shoe size reduction of at least 0.5 Paris points will also be assessed.
|
Baseline (preoperative) and 6 months postoperatively
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Change in Self-Reported Shoe Size
Délai: Baseline (preoperative) and 6 months postoperatively
|
Difference between the patient's self-reported shoe size at 6 months postoperatively compared to baseline (measured in Paris points).
|
Baseline (preoperative) and 6 months postoperatively
|
|
Correlation Coefficient Between Radiographic and 3D Surface Scanner Angular Measurements
Délai: Baseline (preoperative) and 6 months postoperatively
|
Correlation coefficient evaluating the agreement between Hallux Valgus Angle (HVA) and Intermetatarsal Angle (M1-M2) measured on standing plain radiographs versus 3D surface scan reconstructions.
|
Baseline (preoperative) and 6 months postoperatively
|
|
Incidence of Surgical Complications
Délai: Through 6 months postoperatively
|
Proportion of patients experiencing early or late postoperative complications, including deformity recurrence, hallux varus hypercorrection, transfer metatarsalgia, hardware intolerance/failure, delayed wound healing, surgical site infection, or dorsal collateral nerve sensory disorders.
|
Through 6 months postoperatively
|
|
Forefoot Morphometric Changes Measured by 3D Surface Scanner
Délai: Baseline (preoperative), 6 weeks, and 6 months postoperatively
|
Changes in forefoot width (in mm), metatarsal perimeter (in mm), and global forefoot volume (in cm3) measured during weight-bearing 3D surface scanning.
|
Baseline (preoperative), 6 weeks, and 6 months postoperatively
|
Collaborateurs et enquêteurs
Les enquêteurs
- Chercheur principal: Antoine MOUTON, Diaconesses Croix Saint Simon Hospital Group
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- ID RCB/ 2026-A00408-43
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
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