title: Factors Correlating Outcome in Young Infants With Congenital Muscular Torticollis.
abstract: OBJECTIVE
  No previous study using follow-up ultrasonography for evaluating the factors associated with the successful regression of congenital muscular torticollis in young infants has been published. This study aimed to assess clinical factors and sonographic features potentially influencing regression in patients with congenital muscular torticollis.
  
  
  METHODS
  From January 2010 to December 2012, 80 infants underwent neck ultrasonography because of clinical suspicion of congenital muscular torticollis. We statistically analysed the correlation between complete resolution and clinicosonographic findings when complete resolution was defined as no visible lesion on follow-up ultrasonography.
  
  
  RESULTS
  Of the 80 infants, 61 had congenital muscular torticollis and all were followed up by ultrasonography: 1) 34 underwent physiotherapy, and 27 of them (79.4%) revealed complete resolution in follow-up; 2) 27 did not undergo physiotherapy, and 15 of them (55.6%) showed complete resolution. A statistically significant correlation was found between physiotherapy and complete resolution, but not between complete resolution and patient sex; size, volume, and echogenicity of the lesion; and thickness ratio.
  
  
  CONCLUSIONS
  Physiotherapy was the only factor influencing complete resolution in young infants with congenital muscular torticollis.
authors.affiliation: Department of Radiology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea.
authors.forename: Ji Hwa
authors.initials: JH
authors.lastname: Ryu
authors.affiliation: Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea. Electronic address: dwultra@lycos.co.kr.
authors.forename: Dong Wook
authors.initials: DW
authors.lastname: Kim
authors.affiliation: Department of Radiology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea.
authors.forename: Seung Ho
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea.
authors.forename: Hyun Seok
authors.initials: HS
authors.lastname: Jung
authors.affiliation: Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea.
authors.forename: Hye Jung
authors.initials: HJ
authors.lastname: Choo
authors.affiliation: Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea.
authors.forename: Sun Joo
authors.initials: SJ
authors.lastname: Lee
authors.affiliation: Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea.
authors.forename: Young Mi
authors.initials: YM
authors.lastname: Park
authors.affiliation: Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, South Korea.
authors.forename: Hye Jin
authors.initials: HJ
authors.lastname: Baek
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009333:Neck / Q000000981:diagnostic imaging; D026741:Physical Therapy Modalities; D014103:Torticollis / Q000151:congenital* / Q000000981:diagnostic imaging / Q000628:therapy; D014463:Ultrasonography
keywords: Congenital; Neck; Sternocleidomastoid; Torticollis; Ultrasonography