title: Double PCL sign does not always indicate a bucket-handle tear of medial meniscus.
abstract: The discoid medial meniscus is an extremely rare anomaly. Bilateral discoid medial menisci are much more rare but intermittently reported. We report the first case of bilateral discoid medial menisci with positive double PCL sign, which typically indicates a bucket-handle tear of medial meniscus. A literature review was also conducted on bilateral discoid medial menisci.
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China.
authors.forename: Chen
authors.initials: C
authors.lastname: Liu
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China.
authors.forename: Hua Yong
authors.initials: HY
authors.lastname: Zheng
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China.
authors.forename: Hai Peng
authors.initials: HP
authors.lastname: Li
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China.
authors.forename: Han
authors.initials: H
authors.lastname: Wu
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China.
authors.forename: Tian Sheng
authors.initials: TS
authors.lastname: Sun
authors.affiliation: Department of Orthopaedics, Beijing Army General Hospital, Nanmencang #5, Dongcheng District, Beijing, 100700, People's Republic of China. swition@sohu.com.
authors.forename: Jian Hua
authors.initials: JH
authors.lastname: Yao
mesh_terms: D000293:Adolescent; D001182:Arthroscopy; D002357:Cartilage Diseases / Q000151:congenital* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D038061:Lower Extremity Deformities, Congenital / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging; D008297:Male; D008592:Menisci, Tibial / Q000002:abnormalities* / Q000000981:diagnostic imaging; D016119:Posterior Cruciate Ligament / Q000000981:diagnostic imaging*; D000070600:Tibial Meniscus Injuries / Q000000981:diagnostic imaging*
keywords: Arthroscopy; Discoid medial meniscus; Double PCL sign; MRI