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Short-term MRI Follow-up and Thin-layer PDWI Sequence Without Fat Suppression for Detecting Cartilage Loose Bodies: A Case Report.

Ying Liu, Lei Gao, Junfei Li, Jujia Li,Jian Zhao

Current medical imaging(2025)SCI 4区

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Abstract
BACKGROUND:Osteochondritis Dissecans (OCD) is an idiopathic process and can progress from stable to cartilage fragmentation with the formation of loose bodies in the affected joint capsule. Loose bodies in the knee may wear out the articular cartilage, tendons, and ligaments, leading to a series of problems, such as joint locking, bouncing, joint effusion, and meniscus tear; therefore, early recognition and treatment of intraarticular loose bodies are important to achieve favorable long-term outcomes. CASE REPORT:A 49-year-old male presented with a 1-month history of right knee discomfort. The patient underwent a knee MRI scan and was diagnosed with OCD. A short-term MRI follow-up with a thin-layer PDWI sequence without fat suppression detected the cartilage fragments in the knee capsule. Loose body removal, cartilage repair, and microfracture surgery were performed under arthroscopic surgery, and loose bodies of cartilage fragments were removed. CONCLUSION:Short-term MRI follow-up and thin-layer PDWI sequence without fat suppression are necessary for detecting cartilage loose bodies.
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要点】:本文通过短期MRI随访和无需脂肪抑制的薄层PDWI序列,成功检测到关节内的软骨游离体,为早期识别和治疗提供了有效手段。

方法】:采用短期MRI随访配合薄层PDWI序列,无需进行脂肪抑制。

实验】:对一位49岁男性患者进行右膝MRI扫描,通过短期随访和薄层PDWI序列检测到膝关节囊内的软骨游离体,并在关节镜手术中成功移除游离体。