Presentation
Acute injury while playing football. Knee pain and limited weight-bearing.
Patient Data
Age: 10 years
Gender: Male
From the case:
Patella avulsion
{"study":{"id":44204,"case_slug":"patella-avulsion","modality":"X-ray","series":[{"id":42460630,"content_type":"image/jpeg","frames":[{"id":42460630,"width":1270,"height":2237,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"81ff8b18d4c7579348d9cdfa26e0c5_tiny.jpeg","jumbo":"81ff8b18d4c7579348d9cdfa26e0c5_jumbo.jpeg","small":"81ff8b18d4c7579348d9cdfa26e0c5_small.jpeg","thumb":"81ff8b18d4c7579348d9cdfa26e0c5_thumb.jpeg","medium":"81ff8b18d4c7579348d9cdfa26e0c5_medium.jpeg","gallery":"81ff8b18d4c7579348d9cdfa26e0c5_gallery.jpeg","big_gallery":"81ff8b18d4c7579348d9cdfa26e0c5_big_gallery.jpeg","original":"81ff8b18d4c7579348d9cdfa26e0c5.jpg"}]},"perspective":"Frontal","specifics":null},{"id":42460631,"content_type":"image/jpeg","frames":[{"id":42460631,"width":1559,"height":2876,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"e6b4204553cd0564e81e0bbff9a748_tiny.jpeg","jumbo":"e6b4204553cd0564e81e0bbff9a748_jumbo.jpeg","small":"e6b4204553cd0564e81e0bbff9a748_small.jpeg","thumb":"e6b4204553cd0564e81e0bbff9a748_thumb.jpeg","medium":"e6b4204553cd0564e81e0bbff9a748_medium.jpeg","gallery":"e6b4204553cd0564e81e0bbff9a748_gallery.jpeg","big_gallery":"e6b4204553cd0564e81e0bbff9a748_big_gallery.jpeg","original":"e6b4204553cd0564e81e0bbff9a748.jpg"}]},"perspective":"Lateral","specifics":null}],"caption":{"us":null,"gb":null},"findings":{"us":"","gb":""},"contributor_login":"drjermy","case_id":41349,"case_key_image_id":null,"case_featured_at":null},"current_user":null,"access":{"can_edit":false,"can_download":true,"can_feature":false,"can_pin":true}}
On the lateral view, there is a linear radiodensity that overlies the anteroinferior aspect of the patella.
This could be an accessory ossification center, but the overlying soft-tissue swelling is more suggestive of an avulsion injury.
Case Discussion
Because of the additional soft-tissue swelling over the patella, the suggestion of an avulsion injury was made. The child was immobilized and recovered well.
Unable to process the form. Check for errors and try again.