The magnetic resonance imaging appearance of the normal anatomy and injury pattern of capsuloligamentous complex of the first metatarsophalangeal joint.

IF 1.1 4区 医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Acta radiologica Pub Date : 2025-03-01 Epub Date: 2025-02-02 DOI:10.1177/02841851241309522
Zhan-Hua Qian, Jin-E Wang, Rong-Jie Bai, Hui-Li Zhan, Wen-Ting Li, Nai-Li Wang, Yuming Yin
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Abstract

BackgroundThe capsuloligamentous complex injury of the first metatarsophalangeal joint (MTPJ) is a common cause of turf toe.PurposeTo investigate whether high-resolution 3 T magnetic resonance imaging (MRI) could demonstrate all the normal anatomic structures and the MR features of the capsuloligamentous complex injury of the first MTPJ, and to evaluate the diagnostic performance of MRI in the diagnosis of the capsuloligamentous complex injuries of the first MTPJ.Material and MethodsA total of 115 feet were included in this study, including 48 feet from 24 healthy volunteers and 67 feet from 67 patients with the capsuloligamentous complex of the first MTPJ injuries. All feet had MRI examination. The MRI features of the capsuloligamentous complex of the first MTPJ of the volunteers and patients were analyzed. Diagnostic sensitivity, specificity, and accuracy of MRI were calculated using the surgery as the standard of reference. The inter-observer agreement was assessed using kappa analysis.ResultsThe central portion of the plantar plate and ligament injury manifested as discontinuity, with an indistinct appearance with hyperintense signal within the involved structures. The sensitivities, specificities, and diagnostic accuracy value of MRI for diagnosing most structures of the capsuloligamentous complex injuries of the first MTPJ were 67%-100%, 93%-100%, and 0.82-0.99, respectively, and overall good to perfect inter-observer agreements (kappa=0.63-0.95).ConclusionHigh-resolution MRI allows adequate visualization of normal anatomic structures of the first MTPJ. The best visualized structure is sesamoid phalangeal ligament and the most frequent injury is complete tear of the medial sesamoid phalangeal ligament.

第一跖趾关节囊寡韧带复合体正常解剖结构的磁共振成像表现及损伤模式。
背景:第一跖趾关节(MTPJ)的囊膜寡韧带复合体损伤是草皮趾的常见原因。目的:探讨高分辨率3t磁共振成像(MRI)能否显示第一MTPJ囊寡结缔组织复合体损伤的所有正常解剖结构和MR特征,评价MRI在第一MTPJ囊寡结缔组织复合体损伤诊断中的诊断价值。材料和方法:本研究共纳入115英尺,其中48英尺来自24名健康志愿者,67英尺来自67名首次MTPJ损伤的囊膜寡聚复合体患者。所有足部均行MRI检查。分析了志愿者和患者第一MTPJ的囊膜寡聚复合体的MRI特征。以手术为参照标准,计算MRI的诊断敏感性、特异性和准确性。使用kappa分析评估观察员间的协议。结果:足底板中部及韧带损伤表现为不连续,外观模糊,受累结构内有高信号。MRI对第一MTPJ大部分结构的诊断敏感性为67% ~ 100%,特异性为93% ~ 100%,诊断准确率为0.82 ~ 0.99,总体观察者间一致性良好至完美(kappa=0.63 ~ 0.95)。结论:高分辨率MRI可以充分显示第一MTPJ的正常解剖结构。目视结构最好的是籽状指骨韧带,最常见的损伤是内侧籽状指骨韧带完全撕裂。
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
Acta radiologica
Acta radiologica 医学-核医学
CiteScore
2.70
自引率
0.00%
发文量
170
审稿时长
3-8 weeks
期刊介绍: Acta Radiologica publishes articles on all aspects of radiology, from clinical radiology to experimental work. It is known for articles based on experimental work and contrast media research, giving priority to scientific original papers. The distinguished international editorial board also invite review articles, short communications and technical and instrumental notes.
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