title: [The value of 3 dimensional-fat suppression-spoiled gradient-recalled acquisition sequence on single compartment osteoarthritis for unicompartmental arthroplasty preoperative assessment].
abstract: OBJECTIVE
  To analyze the 3 dimensional-fat suppression-spoiled gradient-recalled acquisition (3D-FS-SPGR) sequence in the diagnosis of knee articular cartilage injury.
  
  
  METHODS
  A total of 56 knee osteoarthritis patients (26 males, 30 females, ages 52-73 years, mean 61.8 years) treated in Department of Orthopedics, Chinese People's Liberation Army General Hospital between June 2013 and May 2014 were involved in this study. All patients underwent knee MRI, plus 3D-FS-SPGR sequence, arthroscopic exploration, and in contrast to the results of MRI results analysis, evaluation 3D-FS-SPGR and conventional sequence of cartilage damage consistent with the arthroscopic accuracy.
  
  
  RESULTS
  Divided 56 knee joints into 336 cartilage articular surface, included 55.1% normal articular surface, 21.4% early osteoarthritis and 23.5% advanced osteoarthritis. The accordance of 3D-FS-SPGR sequence grading and arthroscopic was 90.2%. The sensitivity of 3D-FS-SPGR sequence was 93.1%, specificity was 98.3%, and Kappa value was 0.849. The sensitivity of T2WI sequence was 84.4%, specificity was 96.9%, and the Kappa value was 0.671.
  
  
  CONCLUSIONS
  For unicompartment osteoarthritis , MRI 3D-FS-SPGR sequence is effective in sensitivity and specificity of cartilage damage.
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Zhao
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China; Email: liuyujie301@163.com.
authors.forename: Yujie
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Qu
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Bangtuo
authors.initials: B
authors.lastname: Yuan
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Xuezhen
authors.initials: X
authors.lastname: Shen
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Hongliang
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Lu
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Guo
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Qi
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Juanli
authors.initials: J
authors.lastname: Zhu
mesh_terms: D000368:Aged; D001178:Arthroplasty; D001182:Arthroscopy; D002358:Cartilage, Articular; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures; D020370:Osteoarthritis, Knee / Q000601:surgery*; D011300:Preoperative Care; D012680:Sensitivity and Specificity