title: A study of phonomicrosurgical arm support postures using a magnetic motion tracking system.
abstract: OBJECTIVE
  To study the different arm support postures used in phonomicrosurgery by using a magnetic-based phonomicrosurgery instrument tracking system (MPTS). Through quantitative motion parameter data collected from four arm support postures (elbow support [ES], forearm support [FS], forearm and hand support, and no support), phonomicrosurgical operation postures were analyzed and compared.
  
  
  METHODS
  Prospective cohort study.
  
  
  METHODS
  Seven subjects operated on phonomicrosurgical simulation cutting tasks with four arm support postures while being monitored by MPTS. The motion parameters, including operation time, path length, depth perception, and motion smoothness were analyzed. The subjects' cutting quality was also calculated.
  
  
  RESULTS
  With the FS, the nondominant hand showed improved S, better D, and shorter P (P < 0.05). Better motion control in the dominant hand resulted from ES posture (P < 0.05). Better operation quality was associated with increased motion control in the nondominant hand.
  
  
  CONCLUSIONS
  Forearm support resulted in higher steadiness and shorter surgical path in the nondominant hand. In the dominant hand, ES resulted in increased steadiness, shorter surgical path, and better D. The effect of both gravity and wrist dexterity on movement control should be considered when selecting proper arm supports.
  
  
  METHODS
  4.
authors.affiliation: Department of Otorhinolaryngology, Fujian Provincial College of Fujian Medical University, Fuzhou, Fujian Province.
authors.forename: Ting
authors.initials: T
authors.lastname: Chen
authors.affiliation: Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, U.S.A.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Vamos
authors.affiliation: Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, U.S.A.
authors.forename: Seth H
authors.initials: SH
authors.lastname: Dailey
authors.affiliation: Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, U.S.A.
authors.forename: Zhixian
authors.initials: Z
authors.lastname: Geng
authors.affiliation: Department of Otolaryngology, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, China.|Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, U.S.A.
authors.forename: Jack J
authors.initials: JJ
authors.lastname: Jiang
mesh_terms: D000328:Adult; D001132:Arm / Q000502:physiology*; D002983:Clinical Competence; D004867:Equipment Design; D005260:Female; D006801:Humans; D060328:Magnetic Phenomena; D008297:Male; D008866:Microsurgery / Q000295:instrumentation*; D011187:Posture / Q000502:physiology*; D011446:Prospective Studies
keywords: Phonomicrosurgery; arm support posture; magnetic-based; motion tracking; surgical simulation