Experimental investigations of drilling temperature of high-energy ultrasonically assisted bone drilling

Bone drilling is a basic operation widely used in orthopedic surgery. During bone drilling, heat is generated by the friction between the bone and the drill bit, and also the plastic deformation of the bone material. Due to the low thermal conductivity of bone tissue (in the range of 0.2 –2.27 W/mK) [1], the heat of bone drilling is difficult to spread quickly. This results in a relatively high temperature of the drilling part of the bone. Excessive heat generation in bone drilling process can cause necrosis or even osteomyelitis of the bone tissue, which will adversely influenc e the operation and the postoperative recovery [2,3].
Source: Medical Engineering and Physics - Category: Biomedical Engineering Authors: Source Type: research