| Popis: |
A stress fracture of the femoral neck is not an uncommon event in the elderly. Treatment of an undisplaced femoral neck stress fracture usually consists of screw fixation across the fracture site, followed by a period of protected weight-bearing. Nonunion in this type of fracture may occur in 5% of cases1 and is usually accompanied by increasing angulation or impaction of the femoral head, together with penetration of the screw through the femoral head or retrograde extrusion out of the cortex at the site of insertion. In this case report, we describe an elderly man who presented with a stress fracture of the femoral neck and breakage of an underlying lag screw and a single derotation screw that had been placed four and one-half years previously for internal fixation of a basicervical fracture of the same bone. To the best of our knowledge, this is the first report of implant failure occurring as a result of a femoral neck stress fracture. The patient was informed that data concerning the case would be submitted for publication, and he provided consent. A seventy-eight-year-old man with cardiovascular disease, prostate cancer, and spinal stenosis presented with a two-year history of increasing pain in the left hip and groin, with a steady decline in the ability to walk. Four and one-half years previously, he had sustained a basicervical fracture of the left femur following a fall from standing height (Fig. 1); he … |
