背景:我们报告了一种相对罕见的情况,即在外侧半月板的下表面出现部分厚度的放射状撕裂,而上表面完好无损。这种情况类似于PASTA肩袖撕裂。同时,边缘有一个全厚度的径向撕裂。
方法:一个17岁的男孩在打篮球时扭伤了左膝盖。磁共振成像(MRI)显示外侧半月板的放射状撕裂。在关节镜检查期间,发现边缘有大约2毫米的全厚度径向撕裂。进行部分半月板切除术以治疗位于白色区域的radial半月板撕裂。之后,我们发现外侧半月板的上表面是完整的。然而,在外侧半月板的下表面,发现部分厚度的径向撕裂延伸到红色区域。我们使用FASTFIX(史密斯和侄子)进行全内部缝合。手术后三个月,病人恢复顺利。
结论:怀疑力作用在弯月面的特殊位置上,并且弯月面的厚度不均匀。因此,它导致下表面部分厚度的径向撕裂,而上表面完好无损。
结论:外侧半月板下表面的部分厚度放射状撕裂相对罕见。这种情况类似于PASTA肩袖撕裂。因为弯月面的上表面是完整的,它可能导致误诊。容易忽视下表面损伤。
BACKGROUND: We report a relatively rare
case of partial-thickness radial tear in the inferior surface of lateral meniscus, while the superior surface is intact. This situation was similar to PASTA rotator cuff tear. Meanwhile, there is a full-thickness radial tear in the edge.
METHODS: A 17-year-old boy twisted the left knee while playing basketball. Magnetic resonance imaging (MRI) revealed radial tear of the lateral meniscus. During arthroscopy, it was found that there was a full-thickness radial tear of about 2 mm located in the edge. Partial meniscectomy was performed to treat radial meniscal tear located in the white area. After that, we found that the superior surface of the lateral meniscus was intact. However, in the inferior surface of the lateral meniscus, partial-thickness radial tear was found extending to red zone. We used FASTFIX (Smith & Nephew) for all-inside suture. As of three months after this surgery, the patient recovered smoothly.
CONCLUSIONS: Suspect that the force acts on a special position of meniscus and the thickness of the meniscus is uneven. Thus, it leads to partial-thickness radial tear in the inferior-surface, while the superior surface is intact.
CONCLUSIONS: Partial-thickness radial tears in the inferior surface of lateral meniscus are relatively rare. This situation was similar to PASTA rotator cuff tear. Because the superior surface of the meniscus is intact, it may results in misdiagnosis. It\'s easy to ignore the inferior surface injury.