Pellegrini-Stieda Lesion (X-Ray of Knee)

- A Pellegrini-Stieda lesion refers to a post traumatic ossification in or near the medial collateral ligament near the margin of the medial femoral condyle. One presumed mechanism of injury is a Stieda fracture (avulsion injury of the medial collateral ligament at the medial femoral condyle).

Etymology
Named after Augusto Pellegrini (1877–1958) italian surgeon and Alfred Stieda (1869–1945) german surgeon

SOURCE: Radiopaedia.org, http://radiopaedia.org/articles/pellegrini-stieda-lesion