Management of Complex Perianal Fistulas Using Platelet-Rich Plasma and Adipose-Derived Mesenchymal Stem Cells: A Case Series.

Perianal fistulas have posed a medical and surgical problem since ancient times. The plethora of surgical operations described nowadays for anal fistula treatment is real proof that there is no ideal therapeutic procedure. The cornerstone of all approaches is the equilibrium between the definitive treatment of the fistula with the maintenance of the anal continence mechanism, i.