School of Allied Health, La Trobe University, Melbourne, Australia.
School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Australia.
BMC Musculoskelet Disord. 2022 Jun 4;23(1):533. doi: 10.1186/s12891-022-05439-x.
Measures of hip muscle morphology and composition (e.g., muscle size and fatty infiltration) are possible with magnetic resonance imaging (MRI). Standardised protocols or guidelines do not exist for evaluation of hip muscle characteristics, hindering reliable and valid inter-study analysis. This scoping review aimed to collate and synthesise MRI methods for measuring lateral hip muscle size and fatty infiltration to inform the future development of standardised protocols.
Five electronic databases (Medline, CINAHL, Embase, SportsDISCUS and AMED) were searched. Healthy or musculoskeletal pain populations that used MRI to assess lateral hip muscle size and fatty infiltration were included. Lateral hip muscles of interest included tensor fascia late (TFL), gluteus maximus, gluteus medius, and gluteus minimus. Data on MRI parameters, axial slice location, muscle size and fatty infiltrate measures were collected and analysed. Cross referencing for anatomical locations were made between MRI axial slice and E-12 anatomical plastinate sections.
From 2684 identified publications, 78 studies contributed data on volume (n = 31), cross sectional area (CSA) (n = 24), and fatty infiltration (n = 40). Heterogeneity was observed for MRI parameters and anatomical boundaries scrutinizing hip muscle size and fatty infiltration. Seven single level axial slices were identified that provided consistent CSA measurement, including three for both gluteus maximus and TFL, and four for both gluteus medius and minimus. For assessment of fatty infiltration, six axial slice locations were identified including two for TFL, and four for each of the gluteal muscles.
Several consistent anatomical levels were identified for single axial MR slice to facilitate muscle size and fatty infiltration muscle measures at the hip, providing the basis for reliable and accurate data synthesis and improvements in the validity of future between studies analyses. This work establishes the platform for standardised methods for the MRI assessment of lateral hip musculature and will aid in the examination of musculoskeletal conditions around the hip joint. Further studies into whole muscle measures are required to further optimise methodological parameters for hip muscle assessment.
磁共振成像（MRI）可用于测量髋关节肌肉形态和组成（例如，肌肉大小和脂肪浸润）。目前尚无评估髋关节肌肉特征的标准协议或指南，这阻碍了可靠和有效的研究间分析。本范围综述旨在整理和综合测量髋关节外展肌大小和脂肪浸润的 MRI 方法，为未来制定标准化方案提供信息。
检索了五个电子数据库（Medline、CINAHL、Embase、SportsDISCUS 和 AMED）。纳入使用 MRI 评估髋关节外展肌大小和脂肪浸润的健康或肌肉骨骼疼痛人群。感兴趣的髋关节外展肌包括臀中肌筋膜张肌（TFL）、臀大肌、臀中肌和臀小肌。收集并分析了 MRI 参数、轴向切片位置、肌肉大小和脂肪浸润测量值的数据。对 MRI 轴位切片与 E-12 解剖塑料切片的解剖位置进行了交叉参考。
从 2684 篇已确定的文献中，78 项研究提供了关于体积（n=31）、横截面积（CSA）（n=24）和脂肪浸润（n=40）的数据。对髋关节肌肉大小和脂肪浸润的 MRI 参数和解剖边界进行了仔细检查，发现存在异质性。确定了七个用于提供一致 CSA 测量的单水平轴位切片，包括三个用于臀大肌和 TFL 的切片，以及四个用于臀中肌和臀小肌的切片。用于评估脂肪浸润的六个轴位切片位置，包括两个用于 TFL 的切片，以及四个用于每个臀肌的切片。
确定了几个用于单轴 MRI 切片的一致解剖水平，以方便髋关节的肌肉大小和脂肪浸润肌肉测量，为可靠和准确的数据综合以及提高未来研究间分析的有效性奠定了基础。这项工作为髋关节外展肌群的 MRI 评估建立了标准化方法的平台，并将有助于髋关节周围肌肉骨骼状况的检查。需要进一步研究全肌肉测量方法，以进一步优化髋关节肌肉评估的方法学参数。
