ABSTRACT
Cranioplasty has long been performed by many physicians with different materials from the prehistoric era. Among the materials, methyl methacrylate has been known to be the superior to any other substitutes since 1940s in biologic, chemical and physical characteristics and its availability. So the authors review 72 patients who underwent cranioplasty with methyl methacrylate at out hospital from 1985 to 1989. The clinical analyses were as follow : 1) There was male predominance and epidural hematomas, compound, comminuted depressed fractures by traffic accidents or fall down injuries were the main causes of craniectomy. 2) The location of defects was mainly frontal and/or parietal area and average size of defects was 17cm2 in plain skull film measurements. 3) The cosmetic results were satisfactory. 4) Complication rate was 6% and there was no mortality.