• Littrell TA

• Aged, 80 and over
• Female
• Fractures, Avulsion / diagnosis
• Knee Injuries / diagnostic imaging
• Open Access Document

This 94-year-old female patient with a history of Non-Hodgkin Lymphoma in remission described long-standing low back pain and right knee pain to her chiropractor. The AP and lateral lumbopelvic radiographs revealed the expected findings of osteoporosis, advanced degenerative disk disease of the lumbar spine, posterior facet arthrosis with grade I degenerative spondylolistheses, and calcified atherosclerotic plaques within the abdominal aorta and iliac arteries. The AP and lateral knee radiographs demonstrated osteoporosis, osteoarthrosis, and an unexpected finding of a crescent-shaped osseous fragment in the intercondylar notch, representative of an avulsion of the tibial insertion of the anterior cruciate ligament. Diastasis of the fracture fragment was present.

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