Long-term results of the uncemented low contact stress total knee replacement in patients with rheumatoid arthritis.
We analysed the long-term clinical and radiological results of 63 uncemented Low Contact Stress total knee replacements in 47 patients with rheumatoid arthritis. At a mean follow-up of 12.9 years (10 to 16), 36 patients (49 knees) were still alive; three patients (five knees) were lost to follow-up. Revision was necessary in three knees (4.8%) and the rate of infection was 3.2%. The mean clinical and functional Knee Society scores were 90 (30 to 98) and 59 (25 to 90), respectively, at final follow-up and the mean active range of movement was 104 degrees (55 degrees to 120 degrees ). The survival rate was 94% at 16 years but 85.5% of patients lost to follow-up were considered as failures. Radiological evidence of impending failure was noted in one knee.
Sharma
S
S
Southern General Hospital, 1345 Govan Road, Glasgow G51 4TF, UK. sssharma@hotmail.com
Nicol
F
F
Hullin
M G
MG
McCreath
S W
SW
D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000503:physiopathology / Q000601:surgery*; D019645:Arthroplasty, Replacement, Knee / Q000379:methods; D001843:Bone Cements; D002484:Cementation; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D007720:Knee Prosthesis; D008875:Middle Aged; D011475:Prosthesis Failure; D016059:Range of Motion, Articular; D012086:Reoperation; D012189:Retrospective Studies; D013314:Stress, Mechanical; D016896:Treatment Outcome
D001843:Bone Cements