AI Article Synopsis
- The study aimed to evaluate the feasibility and effectiveness of high-resolution MR-guided posterior femoral cutaneous nerve blocks in patients with chronic perineal pain.
- A retrospective analysis of 12 nerve blocks in 8 patients showed a 100% technical success rate with effective pain relief and no complications reported.
- Initial findings suggest that this MR-guided technique is promising, but further research with larger sample sizes is necessary to validate these results.
Article Abstract
Objective: To assess the feasibility, technical success, and effectiveness of high-resolution magnetic resonance (MR)-guided posterior femoral cutaneous nerve (PFCN) blocks.
Materials And Methods: A retrospective analysis of 12 posterior femoral cutaneous nerve blocks in 8 patients [6 (75%) female, 2 (25%) male; mean age, 47 years; range, 42-84 years] with chronic perineal pain suggesting PFCN neuropathy was performed. Procedures were performed with a clinical wide-bore 1.5-T MR imaging system. High-resolution MR imaging was utilized for visualization and targeting of the PFCN. Commercially available, MR-compatible 20-G needles were used for drug delivery. Variables assessed were technical success (defined as injectant surrounding the targeted PFCN on post-intervention MR images) effectiveness, (defined as post-interventional regional anesthesia of the target area innervation downstream from the posterior femoral cutaneous nerve block), rate of complications, and length of procedure time.
Results: MR-guided PFCN injections were technically successful in 12/12 cases (100%) with uniform perineural distribution of the injectant. All blocks were effective and resulted in post-interventional regional anesthesia of the expected areas (12/12, 100%). No complications occurred during the procedure or during follow-up. The average total procedure time was 45 min (30-70) min.
Conclusions: Our initial results demonstrate that this technique of selective MR-guided PFCN blocks is feasible and suggest high technical success and effectiveness. Larger studies are needed to confirm our initial results.
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| http://dx.doi.org/10.1007/s00256-012-1553-8 | DOI Listing |
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