v3.5 Fusion Pro
Incidence rising with aging population and expanding TKA volumes. Common sites: distal femur (supracondylar), tibia (around keel/stem), patella (resurfaced patella). Classifications: Lewis–Rorabeck & Su (femur), Felix (tibia), Ortiguera–Berry (patella). Stable components → fixation; loose components/poor bone → revision with stems/augments ± megaprosthesis. Avoid iatrogenic risk factors (anterior femoral notching, malalignment, osteolysis).
What is the most common site for periprosthetic fractures after total knee arthroplasty (TKA)?
According to the Lewis-Rorabeck classification, which type of supracondylar femur fracture is characterized by less than 5 mm displacement and stable implant?
In the management of a Type II supracondylar femur fracture (displaced, stable implant), which surgical option is preferred?
What is the primary risk factor for periprosthetic fractures in elderly patients undergoing TKA?
What type of fracture does Felix Type I refer to in tibial periprosthetic fractures?
Which management option is appropriate for a stable tibial plateau fracture (Felix Type IA)?
What is the definition of anterior femoral notching in the context of TKA?
In cases of periprosthetic fractures with loose or malpositioned implants, what is the recommended management?
What is the general incidence range of periprosthetic fractures following TKA?
Which of the following is a common mechanism of injury leading to periprosthetic fractures in elderly patients?