Case reports of medication-related osteonecrosis of the jaw (MRONJ) treated with uncultured stromal vascular fraction and L-PRF

J Stomatol Oral Maxillofac Surg. 2021 Apr;122(2):212-218. doi: 10.1016/j.jormas.2020.05.024. Epub 2020 Jun 12.

Abstract

Medication-related osteonecrosis of the jaw (MRONJ) is a challenging affection, considering the absence of a "Gold Standard" treatment. Cell therapy and tissue engineering, using adipose-tissue stromal vascular fraction (SVF) containing mesenchymal stromal cells (MSC) and endothelial progenitor cells (EPC); and a scaffold with healing properties, l-platelet-rich fibrin (L-PRF), could be a therapeutic option. Two cases of MRONJ were treated by tissue engineering. The patients presented respectively a stage-II and a stage-III MRONJ. The protocol consists of SVF injection in the L-PRF applied on the cleaned bone. Patients are followed clinically and by medical imaging (MI) for 18 months. The buccal mucosa was closed within a month. No recurrence was observed during the follow-up. The MI highlighted bone formation. MSC and EPC presence, in the SVF, were confirmed by immunophenotyping. We report the preliminary results of MRONJ patients successfully treated with the association of autologous fresh L-PRF-SVF.

Keywords: Bone regeneration; L-platelet-rich fibrin; Medication-related osteonecrosis of the jaw; Stromal vascular fraction; Tissue engineering.

Publication types

  • Case Reports

MeSH terms

  • Adipose Tissue
  • Bisphosphonate-Associated Osteonecrosis of the Jaw* / diagnosis
  • Bisphosphonate-Associated Osteonecrosis of the Jaw* / therapy
  • Humans
  • Mesenchymal Stem Cells*
  • Platelet-Rich Fibrin*
  • Wound Healing