Magnetic Resonance Imaging appearance of regenerative peripheral nerve interface

Yoav Morag , Theodore A. Kung , Samer Soussahn , Qiaochu Chen , Paul S. Cederna
{"title":"Magnetic Resonance Imaging appearance of regenerative peripheral nerve interface","authors":"Yoav Morag ,&nbsp;Theodore A. Kung ,&nbsp;Samer Soussahn ,&nbsp;Qiaochu Chen ,&nbsp;Paul S. Cederna","doi":"10.1016/j.bjps.2024.09.017","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>To describe the MRI appearance of regenerative peripheral nerve interface (RPNI) and the potential association between the MRI appearance and RPNI revision.</div></div><div><h3>Material and methods</h3><div>A retrospective assessment was undertaken of the MRI appearance of RPNIs performed at our institution between 1/1/2010 and 7/29/2023 with clinical correlation.</div></div><div><h3>Results</h3><div>Fourteen patients (8 men and 6 women, age range 31–80 years, median age 51 years) with technically adequate MRI of RPNIs were included in this study including 5 patients with below knee amputation with 5 tibial and 4 common peroneal nerves RPNI, 8 patients with above knee amputations (AKA) with sciatic RPNIs, and 1 patient following forequarter amputation with a brachial plexus RPNI. Two patients underwent revision RPNI surgery thrice (AKA-sciatic nerve) for a total of 6 RPNI revisions. On T1 weighted sequences, all RPNIs were isointense to the muscle and blended with the surrounding scar and muscle tissues whereas on T2 weighted sequences, all RPNIs were hyperintense in signal compared to the muscle. All but 1 RPNI underwent post contrast enhancement in variable patterns. No statistically significant difference in MRI appearance was found between RPNIs with or without a following RPNI revision surgery.</div></div><div><h3>Conclusion</h3><div>RPNI on MRI typically have a bright and intermediate signal on T2 and T1 weighted sequences, respectively, and typically undergo postcontrast enhancement in variable patterns without a statistically significant difference between the cases with and without follow-up RPNI revision. However, enhancement of RPNI should not be misconstrued as pathological.</div></div>","PeriodicalId":50084,"journal":{"name":"Journal of Plastic Reconstructive and Aesthetic Surgery","volume":null,"pages":null},"PeriodicalIF":2.0000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Plastic Reconstructive and Aesthetic Surgery","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1748681524005680","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"SURGERY","Score":null,"Total":0}
引用次数: 0

Abstract

Purpose

To describe the MRI appearance of regenerative peripheral nerve interface (RPNI) and the potential association between the MRI appearance and RPNI revision.

Material and methods

A retrospective assessment was undertaken of the MRI appearance of RPNIs performed at our institution between 1/1/2010 and 7/29/2023 with clinical correlation.

Results

Fourteen patients (8 men and 6 women, age range 31–80 years, median age 51 years) with technically adequate MRI of RPNIs were included in this study including 5 patients with below knee amputation with 5 tibial and 4 common peroneal nerves RPNI, 8 patients with above knee amputations (AKA) with sciatic RPNIs, and 1 patient following forequarter amputation with a brachial plexus RPNI. Two patients underwent revision RPNI surgery thrice (AKA-sciatic nerve) for a total of 6 RPNI revisions. On T1 weighted sequences, all RPNIs were isointense to the muscle and blended with the surrounding scar and muscle tissues whereas on T2 weighted sequences, all RPNIs were hyperintense in signal compared to the muscle. All but 1 RPNI underwent post contrast enhancement in variable patterns. No statistically significant difference in MRI appearance was found between RPNIs with or without a following RPNI revision surgery.

Conclusion

RPNI on MRI typically have a bright and intermediate signal on T2 and T1 weighted sequences, respectively, and typically undergo postcontrast enhancement in variable patterns without a statistically significant difference between the cases with and without follow-up RPNI revision. However, enhancement of RPNI should not be misconstrued as pathological.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
再生周围神经界面的磁共振成像外观
目的描述再生周围神经界面(RPNI)的核磁共振成像外观以及核磁共振成像外观与 RPNI 修复之间的潜在关联。材料和方法对 2010 年 1 月 1 日至 2023 年 7 月 29 日期间在我院进行的 RPNI 的核磁共振成像外观及临床相关性进行回顾性评估。结果14名患者(8男6女,年龄范围31-80岁,中位年龄51岁)的RPNIs核磁共振成像技术合格,其中包括5名膝下截肢患者的5条胫神经和4条腓总神经RPNI,8名膝上截肢(AKA)患者的坐骨神经RPNI,以及1名前肢截肢患者的臂丛神经RPNI。两名患者接受了三次 RPNI 翻修手术(AKA-坐骨神经),共进行了 6 次 RPNI 翻修。在T1加权序列上,所有RPNI与肌肉呈等密度,并与周围的疤痕和肌肉组织相融合,而在T2加权序列上,与肌肉相比,所有RPNI的信号均呈高密度。除 1 例 RPNI 外,其他所有 RPNI 都出现了不同模式的对比后增强。结论 MRI 上的 RPNI 在 T2 和 T1 加权序列上分别呈明亮和中间信号,通常会出现不同模式的对比后增强,但在进行和未进行后续 RPNI 修复手术的病例之间没有明显的统计学差异。不过,不应将 RPNI 的增强误解为病理增强。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
3.10
自引率
11.10%
发文量
578
审稿时长
3.5 months
期刊介绍: JPRAS An International Journal of Surgical Reconstruction is one of the world''s leading international journals, covering all the reconstructive and aesthetic aspects of plastic surgery. The journal presents the latest surgical procedures with audit and outcome studies of new and established techniques in plastic surgery including: cleft lip and palate and other heads and neck surgery, hand surgery, lower limb trauma, burns, skin cancer, breast surgery and aesthetic surgery.
期刊最新文献
Editorial Board The impact of cosmetic tourism across one year on an NHS breast surgery unit The roles of extracranial intravascular lesion, vasodilation-induced neural entrapment, and arteriolysis in migraine treatment Nail reconstruction using an osteo-onychocutaneous flap with the dorsal digital artery of the hallux as the pedicle: Techniques and anatomical insights Reduction mammaplasty relieves depression in women with macromastia: A systematic review
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1