title: Role of magnetic resonance imaging versus ultrasound for detection of plantar plate tear.
abstract: BACKGROUND
  Plantar plate tears could be the reason of forefoot pain, affecting foot function. Magnetic resonance imaging (MRI) and ultrasound (US) were commonly used for the diagnosis of plantar plate tears. The decision of whether to use MRI or US carried some controversy. Our study aimed to find out the diagnostic accuracy of MRI versus US for plantar plate tears.
  
  
  METHODS
  The database of the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, and relative orthopedic meetings until May 2016 were searched. Studies involved in the diagnostic detection of MRI or ultrasound for plantar plate tears with surgical criteria as the reference test were included. Data was analyzed by meta-analysis. We compared sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and summary receiver operating characteristic (sROC) plot of both MRI and US.
  
  
  RESULTS
  Seven studies involving 246 plantar plate tears were included. The MRI showed more diagnostic accuracy than US for the detection of plantar plate tears. The sensitivity, specificity, positive likelihood ratio, and negative likelihood ratio of MRI were 95%, 54%, 2.08, and 0.08, respectively, while the same values for US were 93%, 33%, 1.20, and 0.35, respectively. And the sROC showed more superior diagnostic accuracy than the US.
  
  
  CONCLUSIONS
  The current result suggests that MRI has better accuracy than US for detection of plantar plate tears.
authors.affiliation: Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Duan
authors.affiliation: Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China.
authors.forename: Lang
authors.initials: L
authors.lastname: Li
authors.affiliation: Department of Bone and Joint Surgery, Affiliated Hospital of Westsouth Medical University, #25 Taiping Steeet, Luzhou, Sichuan Province, China.
authors.forename: Dai-Qing
authors.initials: DQ
authors.lastname: Wei
authors.affiliation: Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Liu
authors.affiliation: Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Yu
authors.affiliation: Anesthesia Department, West China Hospital, Sichuan University, # 37 Guoxuexiang Street, Chengdu, Sichuan province, China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Xu
authors.affiliation: Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Long
authors.affiliation: Orthopedics Department, West China Hospital, Sichuan University, #37 Guoxuexiang Street, Chengdu, 610017, Sichuan Province, China. xiangzhou15@hotmail.com.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Xiang
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods / Q000592:standards; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods / Q000592:standards*; D000069262:Plantar Plate / Q000000981:diagnostic imaging* / Q000293:injuries*; D012421:Rupture / Q000000981:diagnostic imaging*; D014463:Ultrasonography / Q000379:methods / Q000592:standards*
keywords: Diagnosis; MRI; Plantar plate tear; Ultrasonic sound