Related Experiment Video
Updated: Feb 16, 2026
04:26
Author Spotlight: A Reproducible and Efficient Method for Accessing Porcine Brain via Craniectomy
Published on: July 5, 2024
1.0K
Heat generation by ultrasonic bone curette comparing with high-speed drill
Kengo Suzuki1,2, Masahiko Wanibuchi3, Yoshihiro Minamida1
1Department of Neurosurgery, Sapporo Medical University School of Medicine, South 1, West 16, Chuo-ku, Sapporo, Hokkaido, 060-8543, Japan.
Acta Neurochirurgica
|January 6, 2018
Summary
Ultrasonic bone curettes generate more heat than high-speed drills. Using brush-like strokes and high-volume irrigation is crucial for managing heat during bone procedures.
Area of Science:
- Surgical technology
- Biomedical engineering
- Orthopedics
Background:
- Ultrasonic bone curettes are used in surgery, but the heat they generate is not well understood.
- This study quantifies heat production by ultrasonic bone curettes compared to high-speed drills.
Purpose of the Study:
- To quantitatively assess and compare the heat generated by ultrasonic bone curettes and high-speed drills.
- To investigate the influence of surgical technique and irrigation on thermal changes.
Main Methods:
- Swine skulls were used to measure thermal changes during bone curetting.
- Surgical techniques (brush-like strokes vs. pushing) and irrigation methods (room temperature vs. cold water, low vs. high volume) were evaluated.
Main Results:
- Ultrasonic curettes produced higher temperatures (72.5°C) than high-speed drills (44.7°C).
- Brush-like strokes significantly reduced heat compared to pushing motions for drills (44.7°C vs. 69.2°C).
- High-volume irrigation was most effective in reducing heat from curettes (60.5°C).
Conclusions:
- Ultrasonic bone curettes generate more heat than high-speed drills.
- Brush-like strokes are essential for minimizing thermal elevation with both instruments.
- High-volume irrigation is necessary to manage heat effectively when using ultrasonic bone curettes.
More Related Videos
Related Concept Videos
01:16Specific Heat
67.9K
The specific heat capacity of a substance refers to the energy required to increase the temperature of one gram of that substance by one degree Celcius. Specific heat capacity is often represented in calories (cal), grams (g), and degrees Celsius (oC), but can also be expressed in joules (J), kilograms (kg), and Kelvin (K), among other units.
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
67.9K
02:46Quantifying Heat
62.4K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the...
62.4K
01:12Heat Flow and Specific Heat
6.8K
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is...
6.8K
02:44Heating and Cooling Curves
28.1K
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
28.1K
01:08Speed of Sound in Gases
4.1K
The speed of sound in a gaseous medium depends on various factors. Since gases constitute molecules that are free to move, they are highly compressible. Hence, sound waves travel slowly through gases. Thermodynamics helps us understand the relationship between pressure, volume, and temperature of gases, thus, the speed of sound in an ideal gas can be determined using the laws of thermodynamics. At the same time, Newton's laws of motion and the continuity equation of fluid dynamics also come...
4.1K
01:13Speed of a Transverse Wave
4.0K
The speed of a wave depends on the characteristics of the medium. For example, in the case of a guitar, the strings vibrate to produce the sound. The speed of the waves on the strings and the wavelength determine the frequency of the sound produced. The strings on a guitar have different thicknesses but may be made of similar material. They have different linear densities, and the linear density is defined as the mass per length.
One of the key properties of any wave is the wave speed. Light...
One of the key properties of any wave is the wave speed. Light...
4.0K