Management and outcomes in 353 surgically treated sciatic nerve lesions

Area of Science:

• Neurosurgery
• Orthopedic Surgery
• Traumatology

Background:

• Sciatic nerve injuries result from various mechanisms, including trauma and iatrogenic causes.
• Management strategies and functional outcomes for these injuries require detailed analysis.

Purpose of the Study:

• To analyze injury mechanisms, locations, surgical timing, techniques, and functional outcomes of surgically treated sciatic nerve lesions.
• To provide guidelines for the management of sciatic nerve injuries based on a large patient cohort.

Main Methods:

• Retrospective analysis of 353 surgically treated sciatic nerve lesions from 1968 to 1999.
• Categorization of injuries by level (buttock vs. thigh) and mechanism (e.g., GSW, fracture, injection).
• Evaluation of functional outcomes based on surgical techniques (neurolysis, suture, graft) and intraoperative nerve action potentials (NAPs).

Main Results:

• Neurolysis with positive NAPs yielded high functional recovery (Grade 3+) in tibial (87-96%) and peroneal (71-79%) divisions.
• Suture repair showed good recovery (Grade 3+) in tibial (73-93%) and peroneal (30-69%) divisions.
• Graft repair demonstrated good outcomes in tibial (62-80%) but lower rates in peroneal (24-45%) divisions, even for proximal repairs.

Conclusions:

• Surgical exploration and neurolysis are beneficial when intraoperative NAPs are positive.
• Repair with sutures or grafts is indicated for negative NAP results, offering worthwhile outcomes in selected sciatic nerve injury cases.