Traumatic Subperiosteal Haematoma of the Femur in the Newborn

Subperiosteal haemorrhage usually accompanies fracture of a long bone at birth. The occurrence at birth of a subperiosteal haematoma without fracture was not widely recognized until attention was drawn to the condition by Snedecor, Knapp and Wilson (1935), who called it 'traumatic ossifying perios-titis'. A few other reports of this type of birth injury were subsequently published under such titles as periosteal stripping (Burman and Langsam, 1939), neonatal contusion (Caffey, 1945) and ossify-ing haematoma (Brailsford, 1948), and the subject was later reviewed by Snedecor and Wilson (1949). The number of reported cases is still small, and no pathological studies have yet been published; we therefore present two cases, one of which wa

Subchondral Cystlike Lesions Develop Longitudinally in Areas of Bone Marrow Edema–like Lesions in Patients with or at Risk for Knee Osteoarthritis: Detection with MR Imaging—The MOST Study1

Prevalent bone marrow edema-like lesions strongly predict incident subchondral cystlike lesions (SCs) in the same subregion longitudinally, even after adjustment for full-thickness cartilage loss, which supports the bone contusion theory of SC formation