Adipose-Derived Stem Cell Therapy Combined With Platelet-Rich Plasma for the Treatment of Avascular Necrosis of the Talus.

Avascular necrosis (AVN) is characterized by compromised blood supply to bone tissue, often resulting in significant pain and functional impairment. Conservative treatment options for early-stage AVN of the talus are scarce, with non-weight-bearing protocols and hyperbaric oxygen therapy showing limited efficacy. This report presents a potential novel approach to managing non-traumatic AVN of the talus using a combination of adipose-derived stromal vascular fraction (SVF) and platelet-rich plasma (PRP). A 60-year-old male presented with progressive right ankle pain of a two-year evolution. Magnetic resonance imaging (MRI) revealed stage II AVN of the talus with extensive bone infarctions occupying almost all of its volume but with no collapse. A single injection of SVF and PRP was performed after diagnostic arthroscopy, followed by a tailored rehabilitation protocol. The patient experienced significant pain relief, with no further need for analgesics, and was able to return to non-impact sports. At the 18-month follow-up, functional scores showed significant improvement, and MRI showed stable AVN with no evidence of collapse. This report highlights SVF and PRP as a potential effective conservative option for non-traumatic talar AVN.