Musculoskeletal #35

What is the underlying reason for the alterations observed in the bone marrow?

– A subchondral insufficiency fracture accompanied by bone marrow edema is noted
– The presence of additional bone marrow edema in the right femoral neck, particularly in the anterolateral region, is likely indicative of an insufficiency response
– Complete cartilage damage is observed

Pelvic insufficiency fractures

-Pelvic insufficiency fractures typically manifest in the lateral aspect of the femoral neck, while stress fractures tend to occur on the medial aspect

-Additionally, damage to the articular surface can result from cartilage loss, a condition distinct from osteonecrosis

Reference: Peh WC et al: Imaging of pelvic insufficiency fractures. Radiographics. 16(2):335-48, 1996