Discoid Meniscus

(SBQ16SM.92) A 13-year-old girl presents with lateral knee pain after a twisting injury during basketball. Physical examination reveals mild effusion, lateral sided tenderness, and range of motion from 10-85 degrees without any signs of instability. Imaging studies are depicted in Figures A and B. Which of the following is most accurate about the etiology of her diagnosis?

(SBQ16SM.13) A 12-year-old basketball player reports frequent and moderately painful popping in his left knee during his games. His symptoms have remained persistent and both he and his parents are concerned as this limits his performance. He is evaluated and the decision is made to proceed with arthroscopic saucerization. Which of the following is true of his pathology?

(SBQ13PE.9) A 6-year-old boy complains of a 'clunking' sensation in his left knee. He has no associated pain and denies trauma. He can elicit the sensation when moving his knee from flexion into full extension. He is otherwise healthy, with no birth or developmental issues. On examination, there is a palpable clunk felt over the anterior knee through range of motion. There is no obvious instability or tenderness and he had normal patellar tracking. An AP radiograph of the knee is shown in Figure A. What would be the most likely diagnosis?

(SBQ13PE.10) Which statement is true regarding discoid menisci?

(OBQ07.129) An 11-year-old soccer player presents with a 6 month history of snapping and discomfort along the lateral joint line of the knee. Examination shows a 10 degree loss of active extension. An AP radiographs is shown in Figure A. Sequential sagittal MRI images of the lateral compartment of the knee are shown in Figure B. What is the most appropriate course of action?

(OBQ05.166) An 8-year-old boy was playing at school and took a direct blow to his knee causing pain and swelling. His pediatrician ordered an MRI which is shown in Figure A. The patient was referred to your office for a consultation. He denies any past history of pain, clicking, or locking. His knee exam is unremarkable. Radiographs of the knee in your office are normal. What course of action will you recommend?