In the past, Gigli and manual saws were used. It has now been replaced by pneumatic and electric saws. Over the years, bone saw blades have been significantly improved in manufacturing and design to improve accuracy and reduce the side effects of bone cutting. Despite the progress, there are still many adverse effects. E.g:
Saw blade heating
Friction generates a lot of heat, and too much heat can damage the meat and cells around the saw blade. Interestingly, however, they found that brine irrigation during the cutting process had little effect on temperature.
Pneumatic and electric hand-held bone saws generate vibrations, and this cumulative effect can be harmful. Because the vibration of too high frequency will make the numbness of the arm lose its perception.
We know that the amount of vibration and daily use time when using large industrial tools is significantly higher than the amount of vibration generated during sawing during surgery. However, we still need to further evaluate the long-term cumulative effect of using a vibration tool to obtain a definitive answer because it represents a potential hazard.
High levels of noise can impair hearing ability and affect speech recognition. However, some researchers have shown that although the sound level of the instrument ranges from 19.6 dB to 73.1 dB within 3 meters, the exposure frequency is small, so the staff has no effect on hearing and speech loss.
Finally, there is no evidence that the noise generated during surgery is a direct cause of hearing loss or speech difficulties. In summary, the noise generated during surgery is a potential risk for further research.
Cutting errors and debris
Inaccurate cutting due to blade and cutting block groove design or operator error can have an adverse effect. Cutting errors will affect implant alignment, which can have serious long-term effects. Bone and metal fragments generated during the cutting process accelerate wear.
Using appropriate blade thicknesses and properly matched retention slots will alleviate these problems. Therefore, the best bone saw blades can provide accurate bone cutting without generating too much heat, vibration and noise.