A spontaneously healed distal femoral fracture in an infant born preterm: A case report and review of the literature.

Distal femoral fractures are uncommon in the newborn period, and conventional radiographs can miss the diagnosis in infants born prematurely due to delayed ossification. Hence, modalities like ultrasound may have a role in diagnosis. Herein, we report a male infant born preterm with a swollen knee due to a distal femoral fracture after a non-traumatic Caesarean section. The fracture was not present on the conventional radiograph. Instead, it was detected on a repeat sonogram and healed spontaneously with no complications. This case describes the importance of musculoskeletal radiographic expertise for diagnosis of this uncommon newborn fracture.