Shaw scalpel in revision cochlear implant surgery

Area of Science:

• Otolaryngology
• Neurosurgery
• Surgical Innovation

Background:

• Electrocautery use is restricted in cochlear implant revision/replacement surgery due to risks of tissue damage and interference with device failure analysis.
• The Shaw scalpel, a thermally activated blade, offers hemostasis and has demonstrated utility in various surgical fields.
• Minimizing wound and flap complications is critical in cochlear implant procedures.

Purpose of the Study:

• To evaluate the safety and efficacy of the Shaw scalpel in revision and primary cochlear implant surgeries.
• To assess wound healing, alopecia, and speech outcomes when using the Shaw scalpel.
• To determine if the Shaw scalpel preserves the integrity of explanted cochlear devices for diagnostic purposes.

Main Methods:

• Retrospective review of 22 cochlear implant surgeries (revision and primary) utilizing the Shaw scalpel.
• Data collection included patient demographics, surgical indications, reasons for electrocautery contraindication, and intraoperative notes.
• Postoperative evaluation focused on wound healing, alopecia, and speech recognition testing.

Main Results:

• No significant intraoperative complications were observed with Shaw scalpel use.
• Long-term wound healing outcomes were comparable to conventional surgical techniques.
• Explanted devices remained undamaged, facilitating accurate cause-of-failure analysis.
• All patients maintained or improved their preoperative speech recognition levels.

Conclusions:

• The Shaw scalpel is a safe, effective, and user-friendly instrument for cochlear implant surgery, particularly when electrocautery is contraindicated.
• It minimizes risks associated with electrocautery, such as end-organ damage and interference with device diagnostics.
• The technique supports favorable wound healing and preserves patient auditory outcomes.