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Vascularized nerve grafts for lower extremity nerve reconstruction
Julia K Terzis1, Vasileios K Kostopoulos
1Department of Surgery, Division of Plastic and Reconstructive Surgery, Eastern Virginia Medical School, 700 Olney Road, Norfolk, VA 23501, USA. mrc@jkterzis.com
Annals of Plastic Surgery
|January 26, 2010
Summary
Vascularized nerve grafts (VNG) offer improved outcomes for lower extremity nerve reconstruction. Early intervention within 6 months is critical for successful muscle strength recovery in patients with common peroneal nerve injuries.
Area of Science:
- Orthopedics
- Neurosurgery
- Regenerative Medicine
Background:
- Vascularized nerve grafts (VNG) were first reported in 1976.
- Systematic reports on VNG for lower extremity reconstruction are scarce.
- Understanding factors influencing VNG outcomes is crucial.
Purpose of the Study:
- To systematically evaluate the outcomes of VNG in lower extremity nerve reconstruction.
- To compare VNG results with conventional nerve grafts.
- To identify critical factors for successful VNG outcomes.
Main Methods:
- Retrospective analysis of 14 lower extremity nerve injuries in 12 patients reconstructed with VNG since 1981.
- Common peroneal and posterior tibial nerves were the primary targets.
- Sural nerves with or without vascularized fascia were used as grafts.
Main Results:
- All patients achieved improved sensibility and adequate posterior tibial nerve function.
- Early reconstruction (denervation time < 6 months) led to muscle strength grade ≥ 4 for common peroneal nerve injuries, regardless of graft length.
- Late reconstructions resulted in inadequate muscle function.
Conclusions:
- Denervation time of 6 months or less is critical for successful VNG outcomes in lower extremity reconstruction.
- VNG are strongly recommended for traction avulsion injuries with extensive nerve damage.
- Early surgical intervention significantly improves functional recovery in nerve reconstruction.
