Periprosthetic fractures of the tibia associated with total knee arthroplasty.

摘要: One hundred two periprosthetic tibial fractures associated with total knee arthroplasty were identified in 29 men and 73 women. Eighty-three occurred postoperatively, 19 intraoperatively. Fractures classified into four types based on location proximity to the prosthesis. There 61 Type I fractures, occurring at plateau; 22 II adjacent prosthetic stem; 17 III distal IV involving tubercle. Fracture additionally by whether prosthesis appeared be radiographically well fixed (A) or loose (B) time of fracture, fracture intraoperatively (C). The majority postoperative Types IB IIB, these treated most successfully revision surgery. IIA, IIIA, IVA managed usual principles treatment. IC usually intraoperative fixation, IIC bone grafting external immobilization weightbearing restrictions, IIIC conventional management. This classification system provides a guide for determining appropriate treatment arthroplasty.