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Bilateral femoral neck stress fractures in military recruits with unilateral hip pain
  1. Ing How Moo,
  2. Y H D Lee,
  3. K K Lim and
  4. K V Mehta
  1. Department of Orthopaedics Surgery, Changi General Hospital, Singapore, Singapore
  1. Correspondence to Dr Ing How Moo, Department of Orthopaedics Surgery, Changi General Hospital, Singapore 752356, Singapore; zell53{at}


Femoral neck stress fractures are rare and can be easily missed and failure to diagnose these injuries early can lead to avascular necrosis, malunion and osteoarthritis. It is important to have a high index of suspicion for femoral neck stress fractures in military recruits. We present three cases of bilateral femoral neck fractures in military recruits, all presenting with unilateral hip symptoms and signs. All the asymptomatic contralateral hips had femoral neck stress fractures diagnosed by screening MRI. Tension type and displaced femoral neck fractures were treated surgically. All the fractures managed healing without complications. Military recruits with unilateral groin pain should have an early referral for MRI hip to rule out femoral neck stress fractures and those military personnel with ipsilateral femoral neck fracture should have MRI of the contralateral hip. Two of the patients had vitamin D deficiency, of which one had elevated parathyroid hormones and low bone mineral density. Our case series highlights the significance of vitamin D deficiency among military recruits.


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