Distance measurement in middle ear surgery using a telemanipulator

Area of Science:

• Biomedical Engineering
• Otolaryngology
• Surgical Instrumentation

Background:

• Accurate intraoperative measurements are crucial for middle ear surgeries.
• Current methods may lack the precision needed for complex procedures like stapedotomy.
• Estimating prosthesis length in stapedotomy for otosclerosis requires precise distance data.

Purpose of the Study:

• To introduce a new micromanipulator-based tool for intraoperative distance measurement in the middle ear.
• To provide surgeons with a highly accurate instrument for determining 3D spatial distances.
• To specifically address the measurement of the stapes footplate to incus long process distance.

Main Methods:

• Development of a novel micromanipulator system for precise distance gauging.
• Application of the tool for measuring the distance between the stapes footplate and the long process of the incus.
• Evaluation of the system's accuracy using a simplified mechanical model.

Main Results:

• The developed tool demonstrated high accuracy in measuring distances within a 3D operational field.
• The system achieved a maximum measurement error of 0.04 mm.
• This precision is vital for selecting appropriate prosthesis lengths in stapedotomy.

Conclusions:

• The micromanipulator tool offers a precise solution for intraoperative distance measurements in the middle ear.
• This technology can significantly improve surgical planning and outcomes for otosclerosis treatment.
• Further applications in other middle ear surgeries are anticipated.