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臨床外科手術中骨切削技術的研究現狀及進展

A review of bone cutting in surgery

  • 摘要: 對骨切削研究中的骨切削數值仿真本構模型、骨切削手術工藝及機理等方面進行了綜述, 著重介紹了切削參數對骨切削的影響、骨切削刀具設計等, 并對醫學領域新興的超聲骨切削技術進行了介紹和分析.最后得出應從以下方面完善骨切削研究: (1)骨切削數值仿真的本構模型有待開發; (2)構建系統的骨材料切削理論以解釋骨材料切屑形態的切削機理; (3)骨材料切削刀具的開發需要進一步深化; (4)超聲骨切削由于安全性高、損傷小、愈合快的特點將成為未來臨床骨切割操作的發展方向和趨勢.

     

    Abstract: Bone cutting is a basic and vital clinical operation in surgery. Traditional mechanical processing methods such as drilling, grinding, and milling, are widely applied in bone surgery. Bone is a hard biological tissue with a complex structure. The compact bone structure is similar to a brittle fiber-reinforced composite. It is easy to damage bone tissue and reduce bone activity during cutting. The quality and efficiency of bone cutting are related to the therapeutic and rehabilitative outcomes of patients. A correct understanding of bone-cutting processes and mechanisms, optimizing the process parameters of bone cutting, and developing advanced bone-cutting surgical tools are important ways to reduce cutting-induced thermal-mechanical damage from bone cutting and improve the postoperative rehabilitation of patients. This article reviewed published works related to constitutive models of bone tissue, bone cutting processes, and the cutting mechanisms used in different bone-cutting surgeries, with a main focus on the effect of machining parameters and tool design. The latest techniques and challenges in ultrasonic bone cutting were also discussed. Finally, it is concluded that bone-cutting research should address the following aspects: (1) improving the constitutive model for numerically simulating bone cutting; (2) constructing a systemic bone-material-cutting theory that explains the cutting mechanism as it relates to the chip morphology of bone material; (3) further refining the development of cutting tools for bone materials; (4) recognizing the advantages of ultrasonic bone cutting, including high safety levels, less damage, and faster healing, which will guide the development trends of future clinical bone-cutting operations.

     

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