New generation biodegradable plate for fracture fixation: Comparison of bending strengths of mandibular osteotomies fixed with absorbable self-reinforced multi-layer poly-l-lactide plates and metallic plates - An experimental study in sheep

被引：0

作者：

Suuronen, R. ^{[1
]}

Pohjonen, T. ^{[1
]}

Wessman, L. ^{[1
]}

Tormala, P. ^{[1
]}

Vainionpaa, S. ^{[1
]}

机构：

[1] Department of Oral and Maxillofacial Surgery, University of Helsinki, Mannerheimintie 127, 00300 Helsinki, Finland

来源：

Clinical Materials | 1992年 / 9卷 / 02期

关键词：

Calorimetry; -; Plates; Polymers; Radiography;

D O I：

暂无

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学科分类号：

摘要：

Eighteen osteotomies of sheep's mandibular corpus were fixed: nine with self-reinforced multi-layer poly-l-lactide (SR-PLLA) plates and nine with metallic plates. Both plates were fixed with similar metallic screws. The right corpus of each sheep acted as a control. Radiographic analysis was carried out at 3 weeks and at sacrifice (6, 12 or 24 weeks) when the bending force needed to break the osteotomy site was measured. At 6 and 12 weeks of follow-up the osteotomy fixed with the PLA-plate seemed to tolerate the bending force better but no significant differences were detected at 3 or 24 weeks. The results have been satisfactory and have led the authors to continue with the development of a SR-PPLA plate-and-screw device for the fracture fixation.

引用

页码：77 / 84