203例盘状半月板的关节镜治疗和探讨

203 Cases of Discoid Lateral Meniscus:Arthroscopic Evaluation and Treatment

目的 :探讨盘状半月板损伤的机制和特点 ,研究残留半月板组织的处理原则。方法 :对 2 0 3例行关节镜诊治的盘状半月板病例的临床资料进行分析 ,探讨盘状半月板患者的年龄分布特点和 14岁以下半月板损伤患者中盘状半月板病例的比例。对上述资料进行统计学分析。结果 :盘状半月板损伤患者的年龄分布 ,在 2 0岁以下组患者数量最多 ,较其它组有显著差异 (P <0 .0 5 )。14岁以下半月板损伤的患者中外侧盘状半月板组所占比例与普通半月板组比较有显著差异 (P <0 .0 5 )。结论 :盘状半月板的症状、体征和MRI有其相对的特殊性 ,其年龄分布显示青少年患者较多。盘状半月板损伤的机制与其解剖特征和组织学构成有关 ,镜下治疗的原则是保留一个外形和厚度接近正常 ,边缘稳定、光滑的半月板组织。

Objective:To study the mechanism and feature of discoid lateral meniscus injuries and management for remnant meniscus.Methods:According to the analysis of 203 cases(211 knees) discoid lateral meniscus diagnozed by arthoscopy,a comparative analysis was made to evaluate the distribution of discoid lateral meniscus in different age groups,and 62 cases discoid lateral meniscus were compared with 81 cases meniscus injuries in children younger than 14 years.Results:There was significant difference in the distribution of discoid lateral meniscus between 20 and over 20-year of age( P <0.05).There was a 77% incidence of discoid lateral meniscus in children younger than 14 years.It was higher than those of commom meniscus:77% versus 23%( P <0.05).Conclusion:There are particular symptom, physical sign and MRI of discoid lateral meniscus.The age distribution shows that teenagers are more than other age groups.The injuries of discoid lateral meniscus are associated with characteristic of anatomic and histological comstruction.The remnant meniscus is preserved and reshaped to produce the similar appearance to the normal lateral meniscus in terms of width and thickness.It is trimmed to have a balanced and smooth rim of meniscal tissue.