Long-term results and survivorship analysis of 89 total condylar knee prostheses.
The results of 89 total condylar I prostheses were assessed using both the Hospital for Special Surgery rating system and survivorship analysis. At an average follow-up period of 9.5 years (range, 5-15) 61 patients (72 knees) were available for clinical and radiographic evaluation. Thirty (41.5%) knees were rated as excellent, 29 (40.5%) good, 4 (5.5%) fair, and 6 (8.5%) poor. Three (4%) cases were considered failures because they needed a second operation. Loss of the postoperative alignment often associated with lateral instability was observed in 23 knees. Loosening of the tibial plateau occurred in two knees; in one of these a successful revision was performed. Survivorship analysis, using deep infection and aseptic loosening as end-point criteria, gave a 15-year probability of survival of 95%. These results confirm the validity of the total condylar prosthesis and the reliability of cementation in knee arthroplasty.
Rinonapoli
E
E
University of Perugia, Department of Orthopaedics, Italy.
Mancini
G B
GB
Azzara
A
A
Aglietti
P
P
D000206:Actuarial Analysis; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D011183:Postoperative Complications; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections