A case of inadequate reduction of zygomatico-maxillary complex fracture presented a right flat cheek.The facial deformity was restored with a high-density polyethylene (HOPE) malar implant.

• 摘要一位52岁男性患者因观骨骨折复合不全而造成右颜面平塌，我们以高密度聚合乙烯内置物矫正其颜面变形，手术简便并获得良好结果。