title: Amount of ulnar resection is a predictive factor for ulnar instability problems after the Sauvé-Kapandji procedure: a retrospective study of 44 patients followed for 1-13 years.
abstract: BACKGROUND
  The Sauvé-Kapandji procedure can result in instability of the proximal ulnar stump.
  
  
  METHODS
  We reviewed 44 patients (mean follow-up time 6 (0.6-13) years) to investigate predictive factors for ulnar instability after Sauvé-Kapandji operation. We used several scores including an instability score specifically designed for this study.
  
  
  RESULTS
  Patients with a longer proximal ulnar stump had significantly lower instability scores, significantly better Mayo Modified wrist scores and DASH scores, and also less pain than those with shorter proximal ulna.
  
  
  CONCLUSIONS
  If the shortening of the proximal stump is less than 35 mm, a reliable improvement in motion and a high patient satisfaction can be expected. The risk of a painful ulnar instability is related to the amount of resection, and can be reduced by creating a long upper ulnar stump.
authors.affiliation: Department of Hand and Microsurgery, University of Heidelberg, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Daecke
authors.forename: Abdul-Kader
authors.initials: AK
authors.lastname: Martini
authors.forename: Sven
authors.initials: S
authors.lastname: Schneider
authors.forename: Nikolaus A
authors.initials: NA
authors.lastname: Streich
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000009:adverse effects* / Q000379:methods; D011183:Postoperative Complications / Q000175:diagnosis; D011379:Prognosis; D016059:Range of Motion, Articular; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome; D014457:Ulna / Q000503:physiopathology / Q000601:surgery*; D014954:Wrist Injuries / Q000503:physiopathology / Q000601:surgery*; D014955:Wrist Joint / Q000503:physiopathology / Q000601:surgery*