Association of Baxter's Neuropathy and Fatty Infiltration of the Abductor Digiti Minimi Muscle on Magnetic Resonance Imaging: A Systematic Review.

IF 2.2 3区医学 Q1 ORTHOPEDICS

Journal of Foot and Ankle Research Pub Date : 2025-09-01 DOI:10.1002/jfa2.70075

John S C Chen, Mandy Abbott, Karl B Landorf

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引用次数: 0

Abstract

Background: Fatty infiltration-or fatty atrophy-of the abductor digiti minimi (ADM) muscle of the foot on magnetic resonance imaging (MRI) has been attributed to entrapment of the first branch of the lateral plantar nerve (i.e., Baxter's neuropathy), a condition associated with plantar heel pain (PHP). The aim of this study was to investigate the evidence relating to the association between fatty infiltration of ADM and Baxter's neuropathy.

Methods: This systematic review conducted searches in MEDLINE, CINAHL, SPORTDiscus, Embase and the Cochrane Library from 20^th June 2023 to 19^th of March 2024. Peer-reviewed articles of retrospective, cross-sectional observational, or cohort studies written in English that investigated the prevalence or frequency of fatty infiltration of ADM on MRI in adult participants were included. Study quality and risk of bias were assessed using the National Institutes of Health quality assessment tool for observational cohort and cross-sectional studies.

Results: Four studies (1052 participants) were identified and included in the review. Two studies were retrospective studies and two studies were cross-sectional observational studies. Only one study was rated 'good' on quality assessment. The reported prevalence of fatty infiltration of ADM on MRI was reported to be between 4% and 11% in the general population. Prevalence was also reported to be similar in people with and without generalised foot pain (approximately 8% and 6%, respectively). No studies reported prevalence in specific populations with PHP or with Baxter's neuropathy.

Conclusion: The association between fatty infiltration of ADM on MRI and entrapment of the first branch of the lateral plantar nerve as part of PHP still remains unknown due to the lack of robust evidence. Additional high-quality studies investigating the association between PHP and fatty infiltration of ADM on MRI would be worthwhile to improve our understanding of the diagnostic value of MRI for this condition, which may aid decision-making for the treatment of PHP, particularly surgical treatment of Baxter's neuropathy.

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巴克斯特神经病变与小指外展肌脂肪浸润在磁共振成像上的关系：一个系统的回顾。

背景：磁共振成像（MRI）显示足部指外展肌（ADM）的脂肪浸润或脂肪萎缩是由于足底外侧神经第一分支的卡压（即Baxter神经病变），这是一种与足底跟痛（PHP）相关的疾病。本研究的目的是探讨ADM脂肪浸润与Baxter神经病变之间的关系。方法：本系统综述于2023年6月20日至2024年3月19日在MEDLINE、CINAHL、SPORTDiscus、Embase和Cochrane Library进行检索。回顾性、横断面观察性或英语队列研究的同行评审文章被纳入，这些研究调查了成人参与者MRI上ADM脂肪浸润的患病率或频率。使用美国国立卫生研究院的观察性队列和横断面研究质量评估工具评估研究质量和偏倚风险。结果：四项研究（1052名受试者）被确定并纳入本综述。两项研究是回顾性研究，两项研究是横断面观察性研究。只有一项研究在质量评估中被评为“良好”。据报道，在一般人群中，MRI上ADM脂肪浸润的患病率在4%至11%之间。据报道，有和没有全身性足部疼痛的人群的患病率相似（分别约为8%和6%）。没有研究报道PHP或Baxter神经病变在特定人群中的患病率。结论：由于缺乏强有力的证据，MRI上ADM的脂肪浸润与作为PHP一部分的足底外侧神经第一分支的卡压之间的关系尚不清楚。更多高质量的研究探讨PHP与MRI上ADM脂肪浸润之间的关系，将有助于提高我们对这种情况的MRI诊断价值的理解，这可能有助于PHP治疗的决策，特别是Baxter神经病变的手术治疗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Foot and Ankle Research ORTHOPEDICS-

CiteScore

4.50

自引率

10.30%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Foot and Ankle Research, the official journal of the Australian Podiatry Association and The College of Podiatry (UK), is an open access journal that encompasses all aspects of policy, organisation, delivery and clinical practice related to the assessment, diagnosis, prevention and management of foot and ankle disorders. Journal of Foot and Ankle Research covers a wide range of clinical subject areas, including diabetology, paediatrics, sports medicine, gerontology and geriatrics, foot surgery, physical therapy, dermatology, wound management, radiology, biomechanics and bioengineering, orthotics and prosthetics, as well the broad areas of epidemiology, policy, organisation and delivery of services related to foot and ankle care. The journal encourages submissions from all health professionals who manage lower limb conditions, including podiatrists, nurses, physical therapists and physiotherapists, orthopaedists, manual therapists, medical specialists and general medical practitioners, as well as health service researchers concerned with foot and ankle care. The Australian Podiatry Association and the College of Podiatry (UK) have reserve funds to cover the article-processing charge for manuscripts submitted by its members. Society members can email the appropriate contact at Australian Podiatry Association or The College of Podiatry to obtain the corresponding code to enter on submission.