title: Radiographic outcomes after treatment of pediatric supracondylar humerus fractures using a treatment-based classification system.
abstract: OBJECTIVE
  To develop a radiographic method to categorize supracondylar fractures into four types that have logical treatment correlations. The new classification is described, illustrated, and then tested to see if it is reproducible, safe, and effective.
  
  
  METHODS
  Clinical follow-up study.
  
  
  METHODS
  Level I trauma center.
  
  
  METHODS
  One hundred forty-one extension-type supracondylar fractures.
  
  
  METHODS
  According to our system, a long arm cast without reduction was indicated for no or little displacement (Type I), closed reduction and long arm casting was indicated for minimal displacement (Type II), closed reduction and lateral pinning was indicated for moderate displacement (Type III), and closed or open reduction and medial-lateral crossed pinning was indicated for complete displacement (Type IV).
  
  
  METHODS
  Baumann's angle (anteroposterior) and the shaft-condylar angle (lateral).
  
  
  RESULTS
  : No significant differences were observed among the four types with respect to changes in Baumann's angle or the shaft-condylar angle. No patient experienced a major loss of reduction and no iatrogenic ulnar nerve injury was encountered.
  
  
  CONCLUSIONS
  The described treatment-based classification of extension-type supracondylar humerus fractures demonstrates promising results.
authors.affiliation: Department of Orthopaedic Surgery, Cheju Halla General Hospital, Yeon-dong, Jeju, Republic of Korea.
authors.forename: Bong-Jin
authors.initials: BJ
authors.lastname: Lee
authors.forename: Sung-Rak
authors.initials: SR
authors.lastname: Lee
authors.forename: Seong-Tae
authors.initials: ST
authors.lastname: Kim
authors.forename: Woo-Sung
authors.initials: WS
authors.lastname: Park
authors.forename: Tae-Ho
authors.initials: TH
authors.lastname: Kim
authors.forename: Kwon-Hee
authors.initials: KH
authors.lastname: Park
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D020000:Decision Support Systems, Clinical; D005260:Female; D006801:Humans; D006810:Humeral Fractures / Q000145:classification / Q000000981:diagnostic imaging* / Q000601:surgery*; D007223:Infant; D008297:Male; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome