Presentation
Knee pain and swelling for a year.
Patient Data
Age: 10 years
Gender: Male
From the case:
Intra-articular loose body - knee
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/68271/annotated_viewer_json?_c=1669398130\u0026lang=us"}
- chondral defect on the medial patellar facet
- loose osteochondral body in the lateral posterior capsular recess of the knee joint
- moderate joint effusion
From the case:
Intra-articular loose body - knee
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/68273/annotated_viewer_json?_c=1669398130\u0026lang=us"}
- chondral defect on medial patellar facet (black arrow)
- loose body in the lateral posterior capsular recess of the knee joint (yellow arrow)
- moderate joint effusion
Case Discussion
MRI is the best imaging modality to see the location and nature of an intra-articular loose body.