Department of Orthopedics and Traumatology, Malatya Training and Research Hospital, 44090, Malatya, Turkey.
Department of Mechanical Engineering, Inonu University, 44210, Malatya, Turkey.
J Mech Behav Biomed Mater. 2022 Feb;126:105030. doi: 10.1016/j.jmbbm.2021.105030. Epub 2021 Dec 10.
In this study, a hybrid processing method using saline and cryogen cooler is proposed to keep the temperature below the threshold level during bone drilling. Drilling experiments were performed dry, saline, cryogen and, hybrid (saline + cryogen). At the end of the experiment, tool wear, the effect of the methods on the temperature, and the pathological evaluation of the thermal damage were investigated. The advantageous methods for bone drilling were proposed as a hybrid, saline, cryogenic and dry machining, respectively. In addition, it was observed that when cryogen was applied directly to the cutting area, it caused damage to the cell wall structure by the formation of ice crystals in the bone matrix. For this reason, it was recommended to be applied to the body of the cutting tool and it was found that cryogen flow rate has a significant effect on tool wear.
在这项研究中，提出了一种混合处理方法，使用盐水和低温冷却器，以保持在骨钻削过程中低于阈值的温度。进行了干钻、盐水、低温和混合（盐水+低温）钻削实验。实验结束时，研究了工具磨损、各种方法对温度的影响以及热损伤的病理评估。分别提出了混合、盐水、低温和干加工作为骨钻削的有利方法。此外，观察到当低温直接应用于切削区域时，低温会导致冰晶在骨基质中形成，从而破坏细胞壁结构。因此，建议将低温应用于刀具主体，并且发现低温流量对工具磨损有显著影响。
