Presentation
Pain in the front of the knee with a sense of patella slipping
Patient Data
Age: 35 years
Gender: Female
{"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/150151/annotated_viewer_json?lang=us"}
In axial T2 sequences, there’s trochlear dysplasia type C after David Dejour, with shallow trochlear groove and marked medial femoral condyle hypoplasia. There's edema of the soft tissues of the prepatellar region. Otherwise, there are no abnormalities.
Case Discussion
Characteristic imaging findings of trochlear dysplasia type C after Dejour and Le Coultre.
The walls of the trochlea stabilize the patella which can slide into the center of the trochlea during knee flexion increasing the strength and efficiency of the quadriceps muscles of the thigh. If the trochlea is flat or dome-shaped it is easier to dislocate the kneecap.
Imaging technologist: TSRM Nunzio Bianco
Unable to process the form. Check for errors and try again.