Docteur Julien LASNIER-SIRON

Bibliographie

• METHOFRACT, a methotrexate osteopathy multicentre cohort study

  2025

  ArticleRMD Open : Rheumatic & Musculoskeletal Diseases

Source : HAL — archive ouverte CCSD/CNRS (couvre articles, chapitres EMC, communications congrès, thèses).

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Top publications · les plus citées

• 1

  METHOFRACT, a methotrexate osteopathy multicentre cohort study

  RMD open · 2025

  📚 2 citations🔓 Open Access📄 PDF gratuit ↗

  Lire l'abstract Crossref ↓

  Methotrexate-induced osteopathy (MTX-IO) is a rare condition typically involving the lower limbs, especially tibia or foot fractures, among patients with well-controlled rheumatoid arthritis (RA) or psoriatic arthritis (PsA). This study aimed to identify the affected population, describe fracture characteristics and identify risk factors for poor clinical outcome. A multicentre retrospective study included patients with MTX-IO diagnosed by bone specialists or identified through French pharmacovigilance. The data collected included clinical presentation, imaging features, bone mineral density and biochemical markers. Between 2012 and 2024, 92 patients were included, predominantly postmenopausal women with seropositive RA. A history of major fractures was noted for 22% of the patients, and 56% presented osteoporosis at diagnosis. Fractures were most common in the tibial metaphysis (distal and proximal) (88%) and the foot bones (49%), with multiple fractures often present at diagnosis (76%), and frequently repeated fractures in the patients’ recent histories (63%). Diagnosis was conducted using MRI of the painful sites (84%), but bone scintigraphy was also used (41 patients, 45%). Management involved methotrexate discontinuation in 79% of the cases. Fracture healing and pain relief were achieved in 77% of the cases, with a significant difference in outcomes between those who discontinued methotrexate (91%) versus those who continued (29%) (p<0.001). MTX-IO is a rare but significant condition, especially among postmenopausal women with RA or PsA. Early diagnoses via MRI or bone scintigraphy and the discontinuation of methotrexate are critical, as stopping the drug significantly improves outcomes and prevents further fractures.

• 2

  Oncogenic rickets diagnosed at age 8 and the risk of persistent rickets: a rare case of pediatric-onset tumor-induced osteomalacia

  Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025

  📚 1 citations🔓 Open Access📄 PDF gratuit ↗

Publications scientifiques (2) — classées par pathologie

Source PubMed · Recherche par auteur (homonymes possibles, vérifier l'affiliation).

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