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A 6-year-old boy presented with progressive pain in the right groin for a couple of months. Physiotherapy was initially started because of no apparent trauma, but did not deliver any relief. An x-ray examination of the hip showed a Salter–Harris type 2 fracture of the femoral neck without any callus formation (fig 1). The medical history consisted of fractures in the hands and feet. On physical examination, a head circumference +2.5 standard deviations of the mean was noticed. Bone density was assessed by dual-energy x-ray absorptiometry scan and was 10 standard deviations above the mean for the patient’s age for both the lumbar spine and both hips. Radiographs …
Competing interests None.
Patient consent Parental/guardian consent obtained.
Provenance and peer review Not commissioned; externally peer reviewed.