Microsurgical Nerve Repair Overview

Principles

Definition

Microsurgical nerve repair is a specialized academic and clinical domain focused on the investigation and application of techniques utilizing surgical microscopy and fine instruments to restore continuity and function in injured peripheral nerves. This field examines principles of nerve regeneration, surgical methodology, and functional outcomes following nerve repair.

Ontological type

Core Techniques

Indications and Timing

Functional Outcome Measures

Key developments

Key Figures

Surgical and Vascular Principles era

H. Millesi [1] was a leading figure in the Surgical and Vascular Principles era, with work spanning the Medical University of Vienna [3] and the University of Vienna [4] during this period. Millesi [1] advanced interfascicular nerve grafting through The Interfascicular Nerve-Grafting of the Median and Ulnar Nerves [6], a development that emphasized tension-free constructs and axonal alignment essential for functional reinnervation. Göran Lundborg [2] is associated with the University of Gothenburg [5], a leading center for peripheral nerve research during this era. Lundborg [2] provided insights from Structure and function of the intraneural microvessels as related to trauma, edema formation, and nerve function [7], underscoring why preserving microvascular perfusion was central to vascular-sparing approaches in this era.

Guided Bioelectrical Regeneration era

Tessa Gordon [1] conducted research across institutions including the University of Maryland, Baltimore [2] and Florida College [3]. Her key contribution is showing that brief electrical stimulation promotes the speed and accuracy of motor axonal regeneration in the paper Brief Electrical Stimulation Promotes the Speed and Accuracy of Motor Axonal Regeneration [4], a finding that advanced the integration of electrical cues with conduit-based guidance in this period. Affiliations at University of Maryland, Baltimore [2] and Florida College [3] underscore her role within a network advancing scaffold-informed, bioelectrically guided nerve repair. This work laid foundational insights that later guided the design of integrated scaffold and bioelectrical strategies to accelerate motor axon regrowth and improve targeting.

Tissue-Engineered Modular Constructs era

Antonios G. Mikos [1] is a leading figure in the Tissue-Engineered Modular Constructs era, with affiliations at Baylor College of Medicine [3] and Rice University [4] during this period. His 2002 work Bioactive poly(l-lactic acid) conduits seeded with Schwann cells for peripheral nerve regeneration [7] exemplifies the era’s emphasis on cellular augmentation and biomimetic, bioactive conduits that promote directional axon growth across gaps. Paul J. Kingham [2] is a notable contributor in this era, with affiliations to Umeå University [5] and the University of Bristol [6]. His 2014 Engineered neural tissue with aligned, differentiated adipose-derived stem cells promotes peripheral nerve regeneration across a critical sized defect in rat sciatic nerve [8] demonstrates how aligned cellular constructs and scaffold architectures enable functional regeneration, aligning with the era’s translational emphasis on modular, off-the-shelf constructs.