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Commissurotomy Using Carbon Dioxide Laser in 67 Dogs.

Abigail Sharp1, Mark M Smith1, Kendall Taney1

  • 1Center for Veterinary Dentistry and Oral Surgery, Gaithersburg, USA.

Journal of Veterinary Dentistry
|October 6, 2023
PubMed
Summary
This summary is machine-generated.

Carbon dioxide (CO2) laser commissurotomy in dogs offers rapid surgical access for oral tumors. This technique demonstrated a low complication rate, with most minor dehiscences healing well and major ones resolved with revision surgery.

Keywords:
canine oral neoplasiacarbon dioxide lasercommissurectomycommissurotomyneoplasiaoral neoplasiaoral surgery

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Area of Science:

  • Veterinary Surgery
  • Oral and Maxillofacial Surgery
  • Surgical Oncology

Background:

  • Commissurotomy is a surgical incision of the lip commissure.
  • Indications include cheiloplasty, partial commissurectomy, or surgical access to the maxilla/mandible.
  • Oral and maxillofacial neoplasms in dogs often require resective surgery, potentially involving the lip commissure.

Purpose of the Study:

  • To evaluate the efficacy and complications of carbon dioxide (CO2) laser commissurotomy in dogs with oral or maxillofacial neoplasms.
  • To assess the healing process and long-term outcomes of CO2 laser commissurotomy.

Main Methods:

  • CO2 laser was used for commissurotomy or commissurectomy in 67 dogs with oral/maxillofacial neoplasms.
  • Procedures included partial commissurectomy (n=7) and access for oral surgery (n=60).
  • Healing was evaluated at 2 weeks, with a minimum follow-up of 6 weeks (mean 104.6 ± 99.2 weeks).

Main Results:

  • Six postoperative complications related to commissurotomy were reported: 3 mucosal dehiscences (<1.5 cm), 2 lip margin dehiscences (<1.0 cm), and 1 complete wound dehiscence.
  • Two cases of wound dehiscence, including the complete one, healed after revision surgery.
  • Minor dehiscences healed by second intention, and periwound edema resolved by 2 weeks.
  • Complications were independent of surgical procedure type, tumor type, and surgical margin evaluation.

Conclusions:

  • CO2 laser commissurotomy provides rapid, unimpeded surgical exposure with minimal hemorrhage for resective oral and maxillofacial surgery in dogs.
  • The technique is associated with a low complication rate, and complications are manageable.
  • CO2 laser commissurotomy is a viable option for accessing the caudal maxilla and mandible in veterinary oral surgery.