title: Hand dominance and performance in a laparoscopic skills curriculum.
abstract: BACKGROUND
  This study evaluated the influence of hand dominance on skill acquisition during a basic laparoscopic skills curriculum.
  
  
  METHODS
  A total of 27 surgical residents (5 postgraduate year 3 [PGY-3] and 22 PGY-2 residents) participated in a 4-week laparoscopic skills curriculum. The residents were pre- and posttested on six laparoscopic tasks during weeks 1 and 4. During weeks 2 and 3, the residents attended a proctored practice session. The results were compared using analysis of variance (ANOVA), (with significance determined by a p value less than 0.05.
  
  
  RESULTS
  The posttest scores were significantly higher than the pretest scores. On the pretest, lefthand-dominant (LHD) surgeons (n = 4) performed significantly better than righthand-dominant (RHD) surgeons (n = 23). In the analysis of individual task pretest scores, LHD surgeons performed significantly better on pattern cutting and vessel loop application. Posttest analysis of overall performance did not show significant differences between the RHD and LHD surgeons.
  
  
  CONCLUSIONS
  Participation in a laparoscopic skills curriculum improved overall performance. The LHD surgeons demonstrated better initial performance, but posttest comparison showed no difference between the two groups.
authors.affiliation: Feinberg School of Medicine, Department of Surgery, Northwestern University, Chicago, IL 60611, USA.
authors.forename: T W
authors.initials: TW
authors.lastname: Powers
authors.forename: D J
authors.initials: DJ
authors.lastname: Bentrem
authors.forename: A P
authors.initials: AP
authors.lastname: Nagle
authors.forename: M T
authors.initials: MT
authors.lastname: Toyama
authors.forename: S A
authors.initials: SA
authors.lastname: Murphy
authors.forename: K M
authors.initials: KM
authors.lastname: Murayama
mesh_terms: D000328:Adult; D002983:Clinical Competence; D004521:Educational Measurement; D004724:Endoscopy / Q000193:education*; D007839:Functional Laterality; D006801:Humans; D007396:Internship and Residency; D010535:Laparoscopy; D008953:Models, Anatomic; D011597:Psychomotor Performance; D013525:Surgical Instruments; D013526:Surgical Mesh; D017792:Surgical Stapling; D013536:Suture Techniques