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Intercostal nerve transfer in brachial plexus injuries: an experimental study
Microsurgery
|January 1, 1983
Summary
Vascularized intercostal nerve transfers showed superior reinnervation and muscle recovery compared to sural nerve grafts in dogs with brachial plexus injuries. This technique offers promising results for nerve repair.
Area of Science:
- Neurosurgery
- Regenerative Medicine
- Peripheral Nerve Injury
Background:
- Brachial plexus injuries can lead to significant functional deficits.
- Nerve grafting is a common reconstructive method, but outcomes can be variable.
Purpose of the Study:
- To compare the efficacy of vascularized intercostal nerve transfer versus sural nerve grafting for brachial plexus reconstruction.
- To evaluate reinnervation and muscle recovery following different nerve repair techniques.
Main Methods:
- Unilateral brachial plexus disruption in 18 dogs.
- Group I: Vascularized T4/T5 intercostal nerve transfer to the musculocutaneous nerve.
- Group II: Sural nerve cable graft for musculocutaneous nerve repair.
Main Results:
- Group I demonstrated significantly better electromyographic reinnervation.
- Operated biceps muscles in Group I maintained greater weight and appearance.
- Histology showed fewer fibrous tissues and more healthy axons distally in Group I.
Conclusions:
- Vascularized intercostal nerve transfer shows superiority over conventional sural nerve grafts for brachial plexus repair.
- This technique offers theoretical advantages for nerve regeneration and muscle preservation.
- Further investigation is warranted to confirm the advantages of vascularized nerve transfers.
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