Comparison of Topical Use of Platelet-rich Plasma Versus Hyaluronic Acid During Endoscopic Fat Graft Myringoplasty: a Randomized Clinical Study

"general anesthesia. A single surgeon will perform all surgeries.~* A small incision in the rim of ear lobule on the same side of the operated ear, a small piece of adipose tissue will be removed according to the experience of the surgeon.~* Using 0 angulation endoscope visualization, the edges of the perforation will be refreshed and deepithelialized with a sharp Rosen's needle~* sponge gel (Gelfoam) will pushed through TM perforation into the middle ear to support the graft and to avoid its medialization~* the previously removed fat graft will be inserted through the perforation adjusted so most of the fat piece lying medial to the perforation and small part laterally in patients group A: 0.5 mL of HA vial will be injected directly over the fat graft and the TM remnant. After 5 minutes small gelfoam pieces soaked in 0.5 mL of HA vial will applied over the fat in patients group B PRPG was inserted into the external auditory canal on the outer face of the TM remnant and fat"