Non displaced stable periprosthetic fractures may be managed with nonoperative methods use as braces or casting. The management of femur periprosthetic fractures depends upon the location of the fracture and the stability of the prosthesis.
The fracture inner side of the lower end of the femur (medial femoral condyle) occurs mostly during the surgery. Localized factors such as stiffness of the knee, aseptic osteolysis, infection increase the chance of periprosthetic fracture.Certain neurological diseases such as Parkinson’s disease, epilepsy, polio, etc.Long-term steroid use may weaken the bones and to periprosthetic fractures after knee replacement.Elderly patients who may have a metabolic bone disorder such as osteoporosis are at an increased risk for periprosthetic fractures.Inflammatory arthritis such as rheumatoid arthritis increases the chances of fracture after knee replacement.There may be certain risk factors associated with periprosthetic knee fracture such as: The fracture may occur in the femur, the tibia, or the patella. The periprosthetic fracture after knee replacement may occur during the surgery, immediately after the surgery, or days/weeks/years after the surgery.
The undersurface of the kneecap is usually resurfaced and a plastic component is fixed to it. Similarly, the upper part of the shin bone (tibia) is cut and replaced with a tibial component. The lower part of the thigh bone (femur) is cut and replaced with a femoral component. The surgery involves cutting the diseased ends of the bones forming the knee joint. A knee replacement surgery is done after all nonsurgical methods of treatment have been tried for knee arthritis.
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