It is a very important key to maintain a stable reconstructed posterior canal wall with bone plate and cartilage in the posterior canal wall renconstructed tympanoplasty. The authors reconstructed the posterior canal wall with the temporal fascial flap (TFF) and the temporal periosteal falp (TPF) to have a stable posterior canal wall and a tympanic membrane graft. Well-vascularized TFF and TPF enable us to acquire the secure reconstructed posterior canal wall because of the abundant blood supplies to the flaps. In order to investigate the blood supplies of TFF and TPF, we employed Laser Doppler blood flowmeters and measured that in 12 cases of chronic otitis media and 8 cases of cholesteatoma. Both blood supplies were comparatively well, and TFF's blood supplies were statistically better than those of TPF. These findings suggested that the TFF and TPF were reliable source of local well-vascularized to be extremely pliable and facilitate to create the stable posterior canal wall. Furthermore it seemed that it was linked to prompt postoperative healing, avoidance of postoperative infection, satisfactory postoperative hearing improvement, shorter hospitalization stay and early discharge from the hospital.
