Fracture of the tibial tray following PCA knee replacement. A report of two cases.
We report two cases in which fracture of the tibial metal tray was thought to be due to improper design of the tray and heavy polyethylene wear. The bone beneath the fractured portion of the tray was deficient and had been replaced by granulomatous fibrous tissue including numerous polyethylene wear particles and foreign-body giant cells. Osteolysis occurred as a tissue reaction to these particles.
Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
M
M
Maruyama
K
K
Terayama
H
H
Sunohara
T
T
Adachi
S
S
Suzuki
T
T
Fukuzawa
D000368:Aged; D001860:Bone Plates; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D010014:Osteolysis / Q000209:etiology; D011095:Polyethylenes; D011183:Postoperative Complications / Q000209:etiology* / Q000601:surgery; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013977:Tibia
D011095:Polyethylenes