Femoral fractures resulting from birth injuries are rare. The authors undertook a study to assess their incidence and outcome. Seven patients from a total of 55,296 live births suffered 8 femoral fractures (incidence 0.13 per 1,000 live births). Twin pregnancies, breech presentations, prematurity, and disuse osteoporosis were associated with the occurrence of a fracture. The typical injury pattern was a spiral fracture of the proximal half of the femur, which was held in an extended position. A variety of treatment modalities were used, including gallows traction, spica cast, and Pavlik harness. All patients in this study, regardless of treatment, had a satisfactory clinical outcome, with no evidence of limb length discrepancy or angular deformity on follow-up.
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