Departamento de Radiologia e Diagnóstico por Imagem, Hospital Sírio-Libanês, São Paulo, SP, Brazil.
Departamento de Radiologia, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
Clin Imaging. 2021 Sep;77:158-168. doi: 10.1016/j.clinimag.2021.02.029. Epub 2021 Feb 23.
Medial meniscus posterior root tears (MMPRT) can lead to meniscal extrusion, loss of hoop tension, loss of load-sharing ability and increased contact pressure. Currently, the most commonly used technique for root repair is arthroscopic transtibial pullout repair (ATPR). This article aims to illustrate both normal and abnormal postoperative imaging findings of the MMPRT repair performed with ATPR, with emphasis on MRI. The radiologist must highlight the tunnel position, the reduction of the medial meniscus posterior root to its anatomical attachment, the signs of root healing (continuity and lower signal intensity), and eventual meniscal extrusion or signs of osteoarthritis.
内侧半月板后根撕裂（MMPRT）可导致半月板突出、环形张力丧失、负荷分担能力丧失和接触压力增加。目前，用于修复后根的最常用技术是关节镜下经胫骨牵引修复术（ATPR）。本文旨在通过 MRI 重点阐述 ATPR 治疗 MMPRT 术后的正常和异常影像学表现。放射科医生必须强调隧道位置、内侧半月板后根向其解剖附着处的复位、根愈合的迹象（连续性和低信号强度）以及最终的半月板突出或骨关节炎迹象。
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