Piezoelectric bone surgery in otosclerosis

Area of Science:

• Otolaryngology
• Surgical Technology
• Biomedical Engineering

Background:

• Conventional rotating instruments in otologic surgery can pose risks to surrounding soft tissues.
• There is a need for advanced tools that offer greater precision and safety in bone-cutting procedures.

Purpose of the Study:

• To evaluate the Piezosurgery device as a novel method for bone tissue management in otologic surgery.
• Specifically, to assess its efficacy in stapedotomy and osteoplasty of the external auditory duct posterior wall.

Main Methods:

• The study utilized the Piezosurgery device, a piezoelectric ultrasonic bone-cutting instrument operating at low frequencies (24.7-29.5 kHz).
• The device employs micro-vibrations for selective cutting of mineralized tissues with integrated irrigation for cooling and a blood-free field.
• Twenty patients with otosclerosis underwent surgical treatment using this device.

Main Results:

• The Piezosurgery device demonstrated rapid and easy intraoperative management in all treated patients.
• No visible injury to adjacent soft tissues was observed during the procedures.
• No adverse side effects were detected post-operatively.

Conclusions:

• The Piezosurgery device is a highly accurate and selective instrument for otologic surgery, outperforming conventional rotating tools.
• Its precise cutting capabilities ensure clean and smooth bone geometries without damaging surrounding soft tissues.
• The device represents a significant advancement in otologic surgical techniques, offering enhanced safety and efficacy.