title: Relationship between osteochondritis dissecans of the lateral femoral condyle and lateral menisci types.
abstract: The purpose of this study was to examine the relationship between osteochondritis dissecans (OCD) of the lateral femoral condyle and lateral menisci. From 1993 to 2002, 38 knees (28 patients) were diagnosed with OCD of the lateral femoral condyle. OCD locations were graded by the Cahill and Berg classification. The types of lateral menisci were classified by Watanabe's classification. The relationship between OCD of the lateral femoral condyle and lateral menisci was examined. On the anterior-posterior view, 25 OCDs were located in zone 4 and 13 in zone 5. The types of lateral menisci were complete discoid in 19 knees, incomplete discoid in 15, and normal in 4. Ten of the 19 complete discoid menisci were damaged. Complete discoid menisci without tears were found in OCDs located in zone 4; incomplete discoid menisci were found in OCDs located in zone 5. The authors found a relationship between the type of OCD and the state of the lateral meniscus.
authors.affiliation: Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.
authors.forename: Masataka
authors.initials: M
authors.lastname: Deie
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Ochi
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Sumen
authors.forename: Kenzo
authors.initials: K
authors.lastname: Kawasaki
authors.forename: Nobuo
authors.initials: N
authors.lastname: Adachi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Yasunaga
authors.forename: Osamu
authors.initials: O
authors.lastname: Ishida
mesh_terms: D000293:Adolescent; D001175:Arthrography / Q000379:methods; D001182:Arthroscopy; D002648:Child; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008592:Menisci, Tibial / Q000000981:diagnostic imaging / Q000473:pathology*; D010008:Osteochondritis Dissecans / Q000175:diagnosis* / Q000473:pathology; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index