1.The value of 3 dimensional-fat suppression-spoiled gradient-recalled acquisition sequence on single compartment osteoarthritis for unicompartmental arthroplasty preoperative assessment.
Gang ZHAO ; Yujie LIU ; Email: LIUYUJIE301@163.COM. ; Feng QU ; Bangtuo YUAN ; Jiangtao WANG ; Xuezhen SHEN ; Hongliang LI ; Xi LU ; Qi GUO ; Wei QI ; Yang LIU ; Juanli ZHU
Chinese Journal of Surgery 2015;53(7):528-532
OBJECTIVETo analyze the 3 dimensional-fat suppression-spoiled gradient-recalled acquisition (3D-FS-SPGR) sequence in the diagnosis of knee articular cartilage injury.
METHODSA 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.
RESULTSDivided 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.
CONCLUSIONFor unicompartment osteoarthritis , MRI 3D-FS-SPGR sequence is effective in sensitivity and specificity of cartilage damage.
Aged ; Arthroplasty ; Arthroscopy ; Cartilage, Articular ; Female ; Humans ; Knee Injuries ; diagnosis ; Knee Joint ; physiopathology ; surgery ; Magnetic Resonance Imaging ; methods ; Male ; Middle Aged ; Orthopedic Procedures ; Osteoarthritis, Knee ; surgery ; Preoperative Care ; Sensitivity and Specificity
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