[Clinical effects of total knee arthroplasty in the treatment of ankylosed knee].
OBJECTIVE
To investigate the clinical effects of total knee arthroplasty in treatment of ankylosed knee caused by various reasons.


METHODS
Four patients with 7 ankylosed knees, caused by ankylosing spondylitis in 1 case, septic arthritis with bony ankylosis in 1 case, and rheumatoid arthritis in 2 cases, underwent artificial knee replacement. Before the operation joint activity was 0 degrees , Knee Society score (KSS) was 42 (11 - 63), and the function score was 17. Follow-up was conducted for 5 - 27 months.


RESULTS
Follow-up showed that the average joint activity was raised to 83 degrees (60 degrees - 110 degrees ), KSS score to 83 (64 - 91) points, and function score to 77 points. No infectious case was found.


CONCLUSIONS
Total knee arthroplasty has a satisfactory effect in treatment of ankylosed knee. Computer assisted navigation system is helpful in femoro-tibial osteotomy and soft tissue balance. Individualized and directed rehabilitation is a pivotal factor.
Leng
Chong-guang
CG
Orthopedic Hospital of Shenyang, Shenyang 110044, China.
Li
Zhong-qiang
ZQ
Chen
Chong-min
CM
Liu
Can-xiang
CX
Zhao
Jiang-tao
JT
Fan
Shu-feng
SF
Zhang
Hong-na
HN
Chang
Ming
M
D000328:Adult; D000368:Aged; D000844:Ankylosis / Q000601:surgery; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*