High-resolution magnetic resonance-guided posterior femoral cutaneous nerve blocks

Jan Fritz, Cary Bizzell, Sudhir Kathuria, Aaron J. Flammang, Eric H. Williams, Allan J Belzberg, John A. Carrino, Avneesh Chhabra

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)579-586
Number of pages8
JournalSkeletal Radiology
Volume42
Issue number4
DOIs
StatePublished - Apr 2013

Fingerprint

Femoral Nerve
Nerve Block
Magnetic Resonance Spectroscopy
Skin
Conduction Anesthesia
Magnetic Resonance Imaging
Chronic Pain
Needles
Injections

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

High-resolution magnetic resonance-guided posterior femoral cutaneous nerve blocks. / Fritz, Jan; Bizzell, Cary; Kathuria, Sudhir; Flammang, Aaron J.; Williams, Eric H.; Belzberg, Allan J; Carrino, John A.; Chhabra, Avneesh.

In: Skeletal Radiology, Vol. 42, No. 4, 04.2013, p. 579-586.

Research output: Contribution to journalArticle

Fritz, J, Bizzell, C, Kathuria, S, Flammang, AJ, Williams, EH, Belzberg, AJ, Carrino, JA & Chhabra, A 2013, 'High-resolution magnetic resonance-guided posterior femoral cutaneous nerve blocks', Skeletal Radiology, vol. 42, no. 4, pp. 579-586. https://doi.org/10.1007/s00256-012-1553-8
Fritz, Jan ; Bizzell, Cary ; Kathuria, Sudhir ; Flammang, Aaron J. ; Williams, Eric H. ; Belzberg, Allan J ; Carrino, John A. ; Chhabra, Avneesh. / High-resolution magnetic resonance-guided posterior femoral cutaneous nerve blocks. In: Skeletal Radiology. 2013 ; Vol. 42, No. 4. pp. 579-586.
@article{d5f4974616984f968988b3962979b8be,
title = "High-resolution magnetic resonance-guided posterior femoral cutaneous nerve blocks",
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.",
author = "Jan Fritz and Cary Bizzell and Sudhir Kathuria and Flammang, {Aaron J.} and Williams, {Eric H.} and Belzberg, {Allan J} and Carrino, {John A.} and Avneesh Chhabra",
year = "2013",
month = "4",
doi = "10.1007/s00256-012-1553-8",
language = "English (US)",
volume = "42",
pages = "579--586",
journal = "Skeletal Radiology",
issn = "0364-2348",
publisher = "Springer Verlag",
number = "4",

}

TY - JOUR

T1 - High-resolution magnetic resonance-guided posterior femoral cutaneous nerve blocks

AU - Fritz, Jan

AU - Bizzell, Cary

AU - Kathuria, Sudhir

AU - Flammang, Aaron J.

AU - Williams, Eric H.

AU - Belzberg, Allan J

AU - Carrino, John A.

AU - Chhabra, Avneesh

PY - 2013/4

Y1 - 2013/4

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84879694725&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879694725&partnerID=8YFLogxK

U2 - 10.1007/s00256-012-1553-8

DO - 10.1007/s00256-012-1553-8

M3 - Article

C2 - 23263413

AN - SCOPUS:84879694725

VL - 42

SP - 579

EP - 586

JO - Skeletal Radiology

JF - Skeletal Radiology

SN - 0364-2348

IS - 4

ER -