Abstract
The usual radical operation on the mastoid requires a long period of dressing which is painful to the patient and troublesome to the surgeon. If a skin graft is not performed, a cavity lined with scar or granulation tissue remains. If the cavity becomes dry, it has to be watched and freed from scales at more or less frequent intervals. If the cavity remains wet or moist, the granulation tissue has to be worked with constantly to keep it from filling the mastoid cavity. If a skin graft is performed, it generally necessitates another anesthesia and a breaking open of the partially healed wound. The results of the usual thin skin graft are often unsatisfactory. Frequently the graft is successful over only a small area or not at all. Nature has lined the auditory canal with skin, and the best operation on the mastoid leaves the auditory canal lined with
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