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理想的面骨骨折骨内固定技术,需要一种具有现有金属夹板的特性的而又不长期停留于体内的材料。作者研究了聚乳酸(Pol-ylaetic Acia)板和螺丝,在狗的下颌骨骨折治疗中的应用。此物系经加入一定催化剂后所产生的乳酸交脂的一种高质量聚合物,用以制成相当于现有金属板大小的板和螺丝,用环氧乙烷气体灭菌,因聚乳酸吸收湿气,不能用高压灭菌。作者在6只成年狗中,从颌下途径,用钻在第二双尖牙和第一磨牙之间,造成下颌骨完全骨折。在折线两端下颌骨钻
Ideal for fractures of the face and bone, there is a need for a material that has the characteristics of the existing metal cleats without long standing in the body. The authors studied the use of polylactic acid (Pol-ylaetic Acia) plates and screws in the treatment of mandibular fractures in dogs. This material is a kind of high quality polymer produced by lactide after adding certain catalyst to make plates and screws equivalent to the size of the existing metal plate and sterilized by ethylene oxide gas, Moisture absorption, can not be autoclaved. In 6 adult dogs, the submandibular approach was used to drill between the second bicuspid and the first molar, resulting in a complete fracture of the mandible. Drill the mandible at both ends of the polyline