Investigating Skin Flap Techniques for Reconstructive Surgery: A case Report of Rebuilding an Eyelid Margin Tumor in dogs via a Cutaneous-Mucosal Lip Flap Approach

Background: Skin flaps are advanced techniques in reconstructive surgery. Skin flaps consist of skin, subcutaneous tissue, and blood vessels, making them ideal for deep wounds and vascular defects due to their independent blood supply. Skin flaps are categorized into random, axial, Fasciocutaneous, and muscular types based on blood supply, location, and tissue composition. Random flaps can also be classified as progressive, displacement, or rotational. The use of skin flaps in reconstructive surgery is one of the effective methods in tumor reconstruction. Methods: In order to reconstruct an eyelid margin tumor in a canine model using cutaneous-mucosal lip flap, the upper lip of the dog was used to create mucosa-like tissue and both lip and eyelid skin were keratinized stratified squamous Epithelium. During the procedure, the dog was positioned laterally, with its head rotated and slightly raised for a clear surgical field. The tumor was marked with blue ink and removed, and a full-thickness flap was created using two convergent incisions at a ۴۵-degree angle. After gently cutting the flap edge, the mucosal portion was extracted. The area near the eye was closed with absorbable figure-of-eight sutures, while the remaining skin was sutured simply. The flap was incised from the base to the center of the defect after being carefully moved towards its base. Two layers of the flap were sutured into the defect, leaving the sewn knots attached to the tissue. Results: The surgery was successful, with no tumor recurrence observed during follow-ups. Conclusion: Based on the results, skin flaps can be regarded as a novel approach to the treatment of complex deformities and an efficient and dependable procedure in reconstructive surgery. This study opens the door for more investigation into assessing long-term results and refining reconstruction methods.

کلیدواژه ها:

Skin flaps ، Stratified Squamous Epithelium ، wounds ، tissue ، tumor