title: [Clinical effects of total knee arthroplasty in the treatment of ankylosed knee].
abstract: 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.
authors.affiliation: Orthopedic Hospital of Shenyang, Shenyang 110044, China.
authors.forename: Chong-guang
authors.initials: CG
authors.lastname: Leng
authors.forename: Zhong-qiang
authors.initials: ZQ
authors.lastname: Li
authors.forename: Chong-min
authors.initials: CM
authors.lastname: Chen
authors.forename: Can-xiang
authors.initials: CX
authors.lastname: Liu
authors.forename: Jiang-tao
authors.initials: JT
authors.lastname: Zhao
authors.forename: Shu-feng
authors.initials: SF
authors.lastname: Fan
authors.forename: Hong-na
authors.initials: HN
authors.lastname: Zhang
authors.forename: Ming
authors.initials: M
authors.lastname: Chang
mesh_terms: 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*