$hairline fracture in knee$

Intraoperative implants and instruments used in revision knee surgery. Irregular resurfacing of the patella, inappropriate thickness of the residual patella, and the use of single peg implants have been associated with patellar periprosthetic fractures. Damage to the blood supply of the patella may lead to patellar bone death and subsequent fracture. Fractures of the patella occur commonly due to intraoperative surgical techniques. Kneecap (patella) fractures are common in cases where the patella is resurfaced with a plastic prosthetic component. Fractures with an unstable prosthesis are revised usually with a long stem prosthesis. Unstable fractures with a stable prosthesis may be managed with plates, cables, wires, etc. Nonsurgical treatment in the form of bracing/casting may be done for nondisplaced stable fracture. Tibial fractures occur most commonly due to mal-aligned components or in patients with a prior history of tibial surgery. Rarely, an extensive fracture in the elderly may require the replacement of the entire lower end of the femur (distal femoral replacement). Fractures above the prosthesis with a stable prosthesis may be fixed with a nail or a metal plate which is fixed with screws.Ī loose femoral component is managed with a revision involving a femoral component with a long stem.

$hairline fracture in knee$

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.

$hairline fracture in knee$

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.

$hairline fracture in knee$

Hairline fracture in knee