J Periodontol:常规植入钻头或压电骨科手术系统进行**骨皮质穿孔时的骨热力比较

2018-03-18 lishiting MedSci原创

在植入截骨术的外科预备过程中,其尖端部分仅能获得少量的冲洗和冷却。高骨体温度,高于临界10°C的阈值,会损伤骨整合,特别是在密质骨周围。这篇研究的目的是在1个猪的肋骨体外模型中评估2种不同设备和压力负荷对尖端骨皮质温度上升的影响。

在植入截骨术的外科预备过程中,其尖端部分仅能获得少量的冲洗和冷却。高骨体温度,高于临界10°C的阈值,会损伤骨整合,特别是在密质骨周围。这篇研究的目的是在1个猪的肋骨体外模型中评估2种不同设备和压力负荷对尖端骨皮质温度上升的影响。研究在猪的肋骨内预备出24个植入部位,并按照使用的设备(常规钻头系统或压电骨科手术系统)和压力负荷(1000 g或1500 g)分为4组,每组6个样本。使用橡皮障隔离冷却效果和冲洗对尖端骨皮质的作用。使用红外线温度计检验温度的变化。结果显示,压电手术系统使截骨术温度上升10.0°C的可能性增加2倍(OR = 2; 95% CI = 1.136-3.522; p < 0.05)。组1 (钻头系统-1,000 g)平均温度增加了0.07°C (SD = 0.10),组2(钻头系统-1,500 g)增加了0.22°C (SD = 0.26),组3 (压电手术-1000 g)增加了9.18°C (SD = 4.51),组4 (压电手术-1,500 g)增加了8.17°C (SD = 6.12)。采用压电手术系统预备的位点温度上升明显高于常规钻头(p < 0

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    2018-11-22 feather89
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    2018-12-26 slcumt
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    2018-06-03 wqkm

    ^_^^_^

    0

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    2018-03-20 jiyangfei

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