Pediatric lower extremity complaints are a common source of concern for parents. Gait concerns such as in-toeing are considered a developmental variant of childhood growth and are a common reason for visits to a pediatrician. In-toeing specifically is a common anatomic structural variation encountered by pediatric primary care providers and pediatric orthopedic specialists and may be accentuated between six months and five years during which children are developing their coordination skills. This study focuses on the three most common causes of in-toeing in the pediatric population; femoral anteversion (FA), tibial torsion (TT), and metatarsus adductus (MA) with the purpose of providing a brief review to give providers confidence in addressing these common developmental abnormalities.
Osteoporosis leads to reduced bone mass and disrupted bone architecture. Bisphosphonates are used to treat osteoporosis by inhibiting bone resorption. Chronic bisphosphonate use has been associated with adverse effects including atypical femoral fractures (AFF). We report the case of a 63-year-old woman with a history of osteoporosis treated with alendronate, who presented with bilateral hip and groin pain. Radiography detected a chronic-appearing callus in the left hip concerning for a chronic stress fracture versus malignancy. Initial imaging could not rule out malignancy, prompting positron emission tomography (PET) and bone biopsy. PET scan was negative for malignancy and biopsy found changes consistent with chronic bisphosphonate use. This prompted prophylactic intramedullary nailing of the femur. This case highlights the importance of considering AFF in patients with a history of hip pain in the setting of chronic BPs use and reviews criteria within the literature to manage patients with AFFs.
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