多孔聚乙烯板修复眼眶爆裂性骨折

目的探讨多孔聚乙烯（Medpor）板在眶壁爆裂性骨折修复术中应用的临床效果。方法对67例（67只眼）眼眶爆裂性骨折，应用Medpor板进行修复手术。术后随访6个月～2年观察眼球突出度、眼球运动及复视等指标。结果术前眼球突出度检查，患眼与对侧眼眼球突出度相差1．0—8．0平均（3．6±1．4）mm，差异具有统计学意义（t=19．884，P=0．000）；手术后3个月，患眼手术前后眼球突出度比较，相差0．0～7．0（3．2±1．4）mm，差异具有统计学意义（t=19．192，P=0．000）；术前65只眼眼球运动受限牵引试验阳性并伴有不同程度复视，手术后3个月，眼球运动受限者中有60例（92．3％）治愈，复视完全消失；5例（7．7％）30°视野范围外仍有复视，但对日常生活无明显影响。结论Medpor板修复眶壁骨折是一种安全有效、方便、可靠的手术方法。

Medpor porous polyethylene implants in orbital blowout fracture repair

Objective To evaluate the efficacy of Medpor porous polyethylene implants in orbital blowout fracture repair. Methods 67 eyes of 67 cases with orbital blowout fractures underwent surgical re- pair with Medpor implants. Data about the degree of exophthalmos, motility and diplopia followed up for 6 months to 2 years were collected. Results Before surgery,the difference of exophthalmos between damaged and undamaged eyes was 1.0 - 8.0 mm, average （ 3.6 ± 1.4） mm. The difference was statistically signifi- cant（t = 19. 884 ,P = 0.001 ）. The difference of exophthalmos between before and after surgery on damaged eyes was 0.0 -7.0 mm, average （3.2 ± 1.4） mm, The difference was statistically significant （t = 19. 192, P = 0. 000）. There were 65 eyes combined with restriction of passive movement of the eye, and different de- grees of diplopia before surgery. Of these 65 eyes,60 eyes had normal motility without diplopia at 3 months after surgery;5 cases still had residual diplopia outside 30° central visual field which would not affect daily life. Conclusion Medpor porous polyethylene implants in orbital blowout fracture repair is safe, effective and reliable.