Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
Knee Surg Sports Traumatol Arthrosc. 2009 Nov;17(11):1336-9. doi: 10.1007/s00167-009-0815-z. Epub 2009 May 15.
Only a few cases of double-layered meniscus have been described in the English literature. We report two cases of bilateral double-layered lateral meniscus, where an additional semicircular meniscus was observed over the normal lateral meniscus. One of the patients exhibited a bucket-handle tear with a double-layered meniscus. To our knowledge, this abnormality is extremely rare and the incidence of double layered meniscus with bucket-handle tear has not been previously reported.
仅有少数双层半月板的病例在英文文献中有描述。我们报告了两例双侧外侧双层半月板的病例,在正常外侧半月板上方观察到一个额外的半月形半月板。其中一名患者表现为双层半月板伴桶柄状撕裂。据我们所知,这种异常极其罕见,以前没有报道过伴有桶柄状撕裂的双层半月板的发生率。