Ligaments of the Transverse Tarsal Joint Complex: MRI-Anatomic Correlation in Cadavers
Ligaments of the Transverse Tarsal Joint Complex: MRI-Anatomic Correlation in Cadavers
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DOI：
10.2214/ajr.08.2084
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发表时间：
2009-09-01
影响因子：
5
通讯作者：
Resnick, Donald
中科院分区：
文献类型：
--
作者：
Melao, Lina;Canella, Clarissa;Resnick, Donald
目标。本研究的目的是阐明颧骨关节横韧带复合体的详细解剖结构，并结合身体标本的详细解剖关系，评价MRI对颧骨关节复合体的诊断能力。对10只新鲜身体足关节内注射吉多喷妥钠地葡胺溶液前后的高空间分辨率磁共振成像进行了研究。两位读者对MR图像进行了评估，重点是韧带结构的可见性及其外观和信号强度。读者还测量了弹簧韧带复合体、分叉韧带和足跟立方体韧带的不同组成部分的尺寸(长度、宽度和厚度)，用于解剖分析，9具身体标本在与MRI相同的平面上被切成3 mm厚的切片。结果：在所有10具身体标本中，我们能够识别不同的韧带成分，它们的不同形态，影像特征，以及对跟骨关节复合体整体稳定性的贡献。结论：通过清楚地定义正常韧带对跟骨-立方体关节稳定性的影响，MRI可以更准确和正确地诊断跟骨-立方体不稳定的病因，也许可以进行更具体的手术治疗。MRI还可以更好地了解距跟舟关节韧带结构的不同组成部分的正常影像解剖，特别是弹簧韧带复合体。
OBJECTIVE. The objective of our study was to clarify the detailed anatomy of the transverse tarsal joint ligamentous complex and evaluate the diagnostic capability of MRI in the assessment of the tarsal joint complex with detailed anatomic correlation in cadavers.MATERIALS AND METHODS. Ten fresh cadaveric feet were studied with high-spatial-resolution MRI before and after intraarticular injection of a gadopentetate dimeglumine solution. MR images were evaluated by two readers, with an emphasis on the visibility of ligamentous structures and their appearance and signal intensity. Readers also measured the dimensions (length, width, and thickness) of the different components of the spring ligament complex, bifurcate ligament, and plantar calcaneocuboid ligaments, For anatomic analysis, nine cadaveric specimens were sectioned in 3-mm-thick slices in the same planes used for MRI. One additional foot specimen Was used for dissection.RESULTS. In all 10 cadaveric specimens, we were able to identify the various ligamentous elements, their different configurations, imaging characteristics, and contributions to the overall stability of the transverse tarsal joint complex.CONCLUSION. By clearly defining the normal ligaments that contribute to the stability of the calcaneocuboid joint, MRI allows a more precise and correct diagnosis of the etiology of the calcaneocuboid instability, perhaps permitting a more specific surgical management. MRI also allows a better understanding of the normal imaging anatomy of the different components of the ligamentous structures of the talocalcaneonavicular joint, particularly of the spring ligament complex.