Nerve grafts in head and neck reconstruction

Area of Science:

• Neurosurgery
• Regenerative Medicine
• Head and Neck Surgery

Background:

• Peripheral nerve injuries in the head and neck present complex reconstructive challenges.
• Current management strategies aim to restore function while minimizing donor site morbidity.

Purpose of the Study:

• To review recent literature on peripheral nerve repair in the head and neck.
• To focus on autografts, allografts, nerve conduits, and technical considerations.

Main Methods:

• Literature review of contemporary studies on peripheral nerve repair.
• Analysis of outcomes for different grafting techniques and materials.

Main Results:

• Autografts are effective for facial nerve defects but can cause donor site morbidity.
• Human allografts show promise for inferior alveolar nerve repair.
• Neural conduits demonstrate successful reinnervation in animal models for small defects.
• Nerve graft polarity and donor nerve type (motor vs. sensory) do not appear to influence outcomes.

Conclusions:

• Interposition nerve grafting is the gold standard when primary repair is not feasible.
• Autografts remain the primary method for head and neck defects.
• Allografts and nerve conduits represent emerging options for reconstructive surgeons.
• The impact of nerve graft composition and polarity on functional outcomes requires further investigation.