Discoid Meniscus Clinical Presentation

Updated: Sep 27, 2021
  • Author: Ralph DiLibero, MD; Chief Editor: Thomas M DeBerardino, MD, FAAOS, FAOA  more...
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History and Physical Examination

Patients present with any combination of pain, giving way, effusion, and clicking or snapping knee. [6]

Children with discoid meniscus usually present with a snapping knee joint, especially those around 7 years old. The snap can be seen and heard. Translation of the femoral condyle over a thickened posterior rim of lateral meniscus occurs. If the child remains otherwise asymptomatic, only observation is necessary; however, snapping greatly increases the chance of tearing the lateral meniscus, either by continued microtrauma or by trauma that would not cause tearing otherwise. [20, 21]