Comparison of results utilizing one-step and two-step triple innervation techniques

Area of Science:

• Neurosurgery
• Regenerative Medicine

Background:

• Facial palsy significantly impacts quality of life.
• Axonal regeneration after nerve injury is crucial for functional recovery.
• Scar tissue formation can impede nerve regeneration.

Purpose of the Study:

• To compare the efficacy of one-step versus two-step triple innervation for axonal regeneration in facial palsy.
• To investigate the role of scar tissue in nerve regeneration outcomes.

Main Methods:

• Retrospective comparison of two patient groups undergoing one-step or two-step triple innervation.
• Standardized surgical technique with delayed neurorrhaphies in the two-step group.
• Statistical analysis using Wilcoxon signed-rank and Mann-Whitney tests.

Main Results:

• Both one-step and two-step procedures significantly improved facial symmetry and voluntary movements.
• No significant difference was found between groups for overall symmetry, movement, or synkinesis.
• The two-step technique demonstrated superior results for spontaneous movements like blinking and laughing.

Conclusions:

• The two-step triple innervation technique appears more effective for restoring spontaneous facial movements.
• A staged surgical approach may optimize axonal regeneration and functional recovery in facial palsy patients.
• Further research into the role of scar tissue management in nerve repair is warranted.