Periprosthetic Distal Femur Fracture
Lewis–Rorabeck and Su classifications guide treatment; stability of the femoral component is the key decision point. Stable TKA → fixation (locking plate or retrograde nail if intercondylar box permits). Loose TKA → revision arthroplasty with long stem or distal femur replacement in poor bone stock. Biologic fixation with long, locked constructs reduces nonunion/varus collapse. Early ROM; weight‑bearing tailored to construct stability.
Practised by MCQ
10What is the primary classification system used for periprosthetic distal femur fractures (PDFFs)?
mcqIn the Lewis–Rorabeck classification, which type describes a displaced fracture with an intact and stable impl...
mcqWhich of the following is a key decision point in managing periprosthetic distal femur fractures?
mcqWhat is the recommended treatment for a displaced periprosthetic distal femur fracture with a loose implant?
mcqWhich fracture type in the Su classification originates at the proximal edge of the femoral component and exte...
mcqWhat is the approximate incidence of periprosthetic distal femur fractures following primary total knee arthro...
mcqIn the context of managing a periprosthetic distal femur fracture, early range of motion (ROM) is emphasized p...
mcqWhat is a significant risk factor for developing periprosthetic distal femur fractures?
mcqWhat imaging modality is recommended for assessing complex periprosthetic distal femur fractures?
mcqWhich of the following best describes the management of an undisplaced periprosthetic distal femur fracture wi...
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