Use of Integra® on avascular tissue

Area of Science:

• Oral and Maxillofacial Surgery
• Regenerative Medicine
• Dermatology

Background:

• Integra® is a dermal regeneration template typically used on vascularized tissue for wound reconstruction.
• Its application on avascular tissues like bone and cartilage for reconstruction has not been widely explored.

Purpose of the Study:

• To evaluate the novel use of Integra® directly on avascular tissues (bone and cartilage) in oral and maxillofacial surgery patients.
• To assess the efficacy of Integra® in reconstructing full-thickness defects without requiring secondary skin grafting.

Main Methods:

• Seventeen patients with full-thickness defects down to bone or cartilage underwent reconstruction using Integra®.
• The dermal layer of Integra® was placed directly onto the avascular bed, secured with sutures and a bolster dressing.
• Wounds were kept dry for 14 days, followed by standard wound care.

Main Results:

• Complete defect healing was achieved in 16 out of 17 patients.
• Histology confirmed epidermis development on the Integra® surface.
• One-year follow-up showed the appearance of normal scarred skin.

Conclusions:

• Integra® can be effectively used directly on avascular tissues in oral and maxillofacial surgery for defect reconstruction.
• This technique offers a viable alternative to free-flap surgery or skin grafting, simplifying reconstruction and facilitating future resections.
• This novel application expands the utility of dermal regeneration templates in complex surgical scenarios.