title: Surgical reconstruction in Wassel type IV thumb duplication.
abstract: OBJECTIVE
  The aim of this study was to review the results of patients with Wassel type IV thumb duplication, treated with a single reconstructive procedure.
  
  
  METHODS
  The mean follow-up period was 76.9 months. Objective assessments were carried out using Horii modification of Tada scoring system and ALURRA scoring system. Thumb length, thumb girth, range of motion of metacarpophalangeal (MCP) and interphalangeal (IP) joints and angular deformities at MCP and IP joints were evaluated.
  
  
  RESULTS
  The mean ALURRA score was 21 (range; 16-24) and Tada Score 5.25 (range; 2-7). The length of the operated thumb was approximately 95%, the girth 89% and nail width 80% of the non-operated side. The mean range of motion was 75.1% of the unaffected thumb in interphalangeal joint and 80.1% in metacarpophalangeal joint. Metacarpophalangeal joint malalignment had shown statistically significant negative correlation with the scores of Tada, ALURRA and VAS.
  
  
  CONCLUSIONS
  Surgical reconstruction may provide a functional and stable thumb in Wassel type IV thumb duplications. The satisfaction of patients is affected by angular deformity of thumbs and cosmetic outlook.
authors.affiliation: Hand Microsurgery Orthopaedics Traumatology Hospital, İzmir, Turkey.
authors.forename: Murat
authors.initials: M
authors.lastname: Kayalar
authors.affiliation: Hand Microsurgery Orthopaedics Traumatology Hospital, İzmir, Turkey.
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Gürbüz
authors.affiliation: Department of Orthopaedics and Traumatology, Ege University, Faculty of Medicine, İzmir, Turkey.
authors.forename: Levent
authors.initials: L
authors.lastname: Küçük
authors.affiliation: Hand Microsurgery Orthopaedics Traumatology Hospital, İzmir, Turkey.
authors.forename: Tahir Sadik
authors.initials: TS
authors.lastname: Sügün
authors.affiliation: Hand Microsurgery Orthopaedics Traumatology Hospital, İzmir, Turkey.
authors.forename: Yalçin
authors.initials: Y
authors.lastname: Ademoğlu
authors.affiliation: Hand Microsurgery Orthopaedics Traumatology Hospital, İzmir, Turkey.
authors.forename: Kemal
authors.initials: K
authors.lastname: Ozaksar
mesh_terms: D000671:Amputation, Surgical / Q000379:methods*; D005260:Female; D005384:Finger Joint / Q000000981:diagnostic imaging / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007430:Intraoperative Care / Q000379:methods; D007593:Joint Instability / Q000209:etiology / Q000517:prevention & control; D008297:Male; D008662:Metacarpophalangeal Joint / Q000000981:diagnostic imaging / Q000601:surgery; D017689:Polydactyly / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery; D011183:Postoperative Complications / Q000517:prevention & control*; D011859:Radiography; D016059:Range of Motion, Articular; D020127:Recovery of Function; D053656:Tenodesis / Q000379:methods*; D013933:Thumb / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D016896:Treatment Outcome