title: Symptoms of discoid lateral menisci.
abstract: OBJECTIVE
  This study aims to determine the symptoms of the patients with discoid lateral meniscus.
  
  
  METHODS
  We prospectively collected cases of the knees with discoid lateral meniscus. Twenty patients (7 female, 13 male) admitted between January 2012 and February 2014 were enrolled in this study. The mean age of the patients was 34 years (range 28-40).
  
  
  RESULTS
  The identified symptoms of a discoid lateral meniscus were "pain, stiffness, popping of the knee, feeling that the knee is "giving way", inability to fully extend (straighten) the knee". Thirteen patients (65%) had pain, 11 (55%) had popping of the knee, 4 (20%) had stiffness, 2 (10%) had "giving way" feeling, and 1 (5%) had inability to fully extend the knee. These symptoms did not prevent any patient's daily activities. No patients required surgical treatment.
  
  
  CONCLUSIONS
  Pain and popping of the knee were the most common symptoms in patients with a discoid lateral meniscus. The other symptoms were stiffness, feeling that the knee is "giving way", and inability to fully extend the knee, respectively. No symptoms had been required surgical treatment.
authors.affiliation: Department of Orthopaedics and Traumatology, Kanuni Sultan Suleyman Education and Research Hospital, Istanbul 34303, Turkey.
authors.forename: Serhat
authors.initials: S
authors.lastname: Mutlu
authors.affiliation: Department of Orthopaedics and Traumatology, Taksim Education and Research Hospital, Istanbul 34433, Turkey.
authors.forename: Harun
authors.initials: H
authors.lastname: Mutlu
authors.affiliation: Department of Physical Medicine and Rehabilitation, Nisa Hospital, Istanbul 34196, Turkey.
authors.forename: Burcu
authors.initials: B
authors.lastname: Mutlu
authors.affiliation: Department of Orthopaedics and Traumatology, Medipol University Medical School, Istanbul 34083, Turkey.
authors.forename: Olcay
authors.initials: O
authors.lastname: Guler
authors.affiliation: Department of Orthopaedics and Traumatology, Kanuni Sultan Suleyman Education and Research Hospital, Istanbul 34303, Turkey.
authors.forename: Tahir Mutlu
authors.initials: TM
authors.lastname: Duymus
keywords: Discoid lateral meniscus; Knee; Popping knee