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Comparison of microsuspension laryngoscopy positions: a randomized, prospective study.
Laryngoscope. 2015 Mar; 125(3):649-54.L

Abstract

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.

Authors+Show Affiliations

University of Pittsburgh Voice Center, Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, U.S.A.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

25446068

Citation

Smith, Libby J., et al. "Comparison of Microsuspension Laryngoscopy Positions: a Randomized, Prospective Study." The Laryngoscope, vol. 125, no. 3, 2015, pp. 649-54.
Smith LJ, Trout JM, Sridharan SS, et al. Comparison of microsuspension laryngoscopy positions: a randomized, prospective study. Laryngoscope. 2015;125(3):649-54.
Smith, L. J., Trout, J. M., Sridharan, S. S., Guyer, J. R., Owens, G. E., Chambers, A. J., & Rosen, C. A. (2015). Comparison of microsuspension laryngoscopy positions: a randomized, prospective study. The Laryngoscope, 125(3), 649-54. https://doi.org/10.1002/lary.24932
Smith LJ, et al. Comparison of Microsuspension Laryngoscopy Positions: a Randomized, Prospective Study. Laryngoscope. 2015;125(3):649-54. PubMed PMID: 25446068.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of microsuspension laryngoscopy positions: a randomized, prospective study. AU - Smith,Libby J, AU - Trout,Jenna M, AU - Sridharan,Shaum S, AU - Guyer,Joan R, AU - Owens,Grace E, AU - Chambers,April J, AU - Rosen,Clark A, Y1 - 2014/11/29/ PY - 2014/08/25/accepted PY - 2014/12/3/entrez PY - 2014/12/3/pubmed PY - 2015/4/15/medline KW - EMG KW - Surface electromyography KW - ergonomics KW - laryngeal surgery KW - laryngeal surgical ergonomics KW - microlaryngeal surgery KW - surgical ergonomics SP - 649 EP - 54 JF - The Laryngoscope JO - Laryngoscope VL - 125 IS - 3 N2 - 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. SN - 1531-4995 UR - https://www.unboundmedicine.com/medline/citation/25446068/Comparison_of_microsuspension_laryngoscopy_positions:_a_randomized_prospective_study_ L2 - https://doi.org/10.1002/lary.24932 DB - PRIME DP - Unbound Medicine ER -