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Partial nerve injuries in the upper extremity.

S E Varitimidis1, D G Sotereanos

  • 1Department of Orthopaedics, University of Pittsburgh Medical Center, Pennsylvania, USA.

Hand Clinics
|March 4, 2000
PubMed
Summary
This summary is machine-generated.

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Electrical stimulation mapping aids peripheral nerve repair for injuries in the forearm. End-to-end repair of fascicular groups shows promising results, potentially outperforming nerve grafts for specific injuries.

Area of Science:

  • Neurosurgery
  • Peripheral Nerve Surgery
  • Microsurgery

Background:

  • Peripheral nerve injury severity significantly impacts repair outcomes.
  • Nerve anatomy changes from pure sensory/motor fascicles at the wrist to mixed nerves proximally.
  • Accurate fascicular group identification is crucial for successful nerve repair.

Purpose of the Study:

  • To evaluate the efficacy of electrical stimulation for mapping fascicular orientation in peripheral nerve injuries.
  • To compare functional outcomes of end-to-end fascicular repair versus nerve grafting for upper extremity nerve injuries.

Main Methods:

  • Electrical stimulation mapping to identify fascicular orientation in peripheral nerves from the wrist to the distal forearm.
  • Patient selection criteria emphasizing adequate anesthesia for intraoperative cooperation.

Related Experiment Videos

  • Review of literature and case series reporting outcomes of nerve repair techniques.

    • Main Results:

    • Electrical stimulation mapping is indicated for injuries between the wrist and distal forearm.
    • End-to-end repair of fascicular groups yielded very good functional outcomes (e.g., MRC motor 4.0, sensory 3.8).
    • End-to-end repair demonstrated superior results compared to nerve grafting when the nerve gap is less than 2 cm.

    Conclusions:

    • Electrical stimulation mapping is a valuable technique for precise peripheral nerve repair.
    • End-to-end repair of fascicular groups offers better functional recovery than nerve grafting for suitable injuries.
    • Optimal outcomes depend on injury level, patient selection, and anesthetic management.