Premium
Comparison of microsuspension laryngoscopy positions: A randomized, prospective study
Author(s) -
Smith Libby J.,
Trout Jenna M.,
Sridharan Shaum S.,
Guyer Joan R.,
Owens Grace E.,
Chambers April J.,
Rosen Clark A.
Publication year - 2015
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.24932
Subject(s) - medicine , physical therapy , otorhinolaryngology , randomized controlled trial , laryngoscopy , physical medicine and rehabilitation , anesthesia , surgery , intubation
Objectives/Hypothesis To evaluate muscle fatigue and participant pain in the upper back, cervical, and arm muscles associated with microlaryngeal surgery (MLS) in standardized favorable and unfavorable ergonomic positions. Study Design Individual randomized counterbalanced design. Methods Electromyographic sensors were placed on targeted muscles involved with performing MLS on 18 otolaryngology residents/fellows. Subjects were randomly counterbalanced in both favorable and unfavorable positions while completing simulated laryngeal microsurgical tasks. Participants reported their extent of muscle discomfort in targeted muscle regions on a standardized survey. Results Muscle fatigue and self‐reported pain were reduced, and productivity was improved in the favorable position. In the lower trapezius, significantly less muscle activation ( P = 0.025) and less pain ( P < 0.05) were found while in the favorable position compared to the unfavorable position. Conclusion This is the first study to demonstrate electromyographic evidence of decreased muscle activation and fatigue, in addition to self‐reported pain with a more favorable microsurgical ergonomic position, which may help surgeons avoid musculoskeletal injuries. Level of Evidence 1b. Laryngoscope , 125:649–654, 2015