Rao P. Sripathi, Rao Sharath K., Paul Rajesh
Department of Orthopaedics, Kasturba Medical College Hospital, Manipal, India.
Arthroscopy. 2001 Mar;17(3):275-277. doi: 10.1053/jars.2001.19973.
To establish the common clinical and radiologic features of discoid lateral meniscus in a setting where magnetic resonance imaging was not routinely possible because of cost and access. Arthroscopy was used to confirm the diagnosis. Type of Study: Retrospective study of group of patients with discoid lateral meniscus as the diagnosis. METHODS: Of 1,643 arthroscopies of the knee performed between January 1993 and January 1999, 87 patients (95 knees) with discoid lateral meniscus were studied with regard to their clinical presentation and radiologic features. Arthroscopy was used for confirmation of diagnosis, classification of types of discoid lateral meniscus and pattern of tears, and for treatment. RESULTS: Of all the knee arthroscopies, 5.8% involved patients with discoid lateral meniscus. The average age of patients at presentation (24.7 years), contributed to a 67.3% incidence of associated tears. Tears were more frequently associated with patients older than 15 years, which was statistically significant (P =.0005). The most common clinical features were pain and joint-line tenderness. In this series, the incidence of radiologic findings was high (53.9%). CONCLUSIONS: The high incidence of tears is attributable to the late presentation. The incidence of radiologic findings in this series is high.
在因成本和可及性而无法常规进行磁共振成像的情况下，确定盘状外侧半月板的常见临床和放射学特征。通过关节镜检查来确诊。研究类型：对诊断为盘状外侧半月板的患者群体进行回顾性研究。方法：在1993年1月至1999年1月期间进行的1643例膝关节镜检查中，对87例（95个膝关节）诊断为盘状外侧半月板的患者的临床表现和放射学特征进行了研究。关节镜检查用于确诊、盘状外侧半月板类型和撕裂模式的分类以及治疗。结果：在所有膝关节镜检查中，5.8%的患者患有盘状外侧半月板。患者就诊时的平均年龄（24.7岁）导致相关撕裂的发生率为67.3%。撕裂在15岁以上患者中更常见，具有统计学意义（P = 0.0005）。最常见的临床特征是疼痛和关节线压痛。在本系列中，放射学检查结果的发生率较高（53.9%）。结论：撕裂的高发生率归因于就诊延迟。本系列中放射学检查结果的发生率较高。
