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Is Repetitive Workload a Risk Factor for Upper Extremity Musculoskeletal Disorders in Surgical Device Mechanics? A Cross-Sectional Analysis

Author

Listed:
  • Oliver Lotter

    (Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Academic District Hospital, Zeppelinstrasse 21, 78532 Tuttlingen, Germany)

  • Tobias Lieb

    (Office for Occupational and Hand Therapy, Neuhauser Strasse 85, 78532 Tuttlingen, Germany)

  • Viktor Breul

    (Department of Medical Scientific Affairs, Aesculap AG, Am Aesculap Platz, 78532 Tuttlingen, Germany)

  • Jochen Molsner

    (IAS-Group for Occupational Health Management, Koenigstrasse 6, 78532 Tuttlingen, Germany)

Abstract

To assess the prevalence of upper extremity work-related musculoskeletal disorders (WMSDs) among surgical device mechanics compared to a control group, a total of 70 employees were included and assigned to three occupational groups (grinders, packers, and control). Personal factors, work exposure, manual skill, and complaints were assessed by two self-administered questionnaires and an industry test. WMSDs were diagnosed in a standardised clinical examination. The two-one-sided t -tests (TOST) procedure was used to test the clinical equivalence of the respective grinding and packaging groups vs. the control group in terms of the Disabilities of the Arm, Shoulder and Hand (DASH) score. Thirty-nine study participants (56%) experienced at least one WMSD at the elbow, forearm, and/or wrist, mainly with signs of epicondylitis and nerve entrapment at the medial elbow. The risk of grinders developing upper extremity WMSD was about 2.5-times higher and packers had an 8.6-fold higher risk of a clinically relevant DASH > 29 compared to the control group. However, these differences were not statistically significant. The groups were also proven to be clinically equivalent in terms of DASH score. Surgical device mechanics do not seem to have worse DASH values or be at higher risk of upper limb WMSDs compared to a control group. This is the first study to analyse and compare different workplaces in this industry that are also common in other industries.

Suggested Citation

  • Oliver Lotter & Tobias Lieb & Viktor Breul & Jochen Molsner, 2020. "Is Repetitive Workload a Risk Factor for Upper Extremity Musculoskeletal Disorders in Surgical Device Mechanics? A Cross-Sectional Analysis," IJERPH, MDPI, vol. 17(4), pages 1-19, February.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:4:p:1383-:d:323352
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    Citations

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    Cited by:

    1. André Luiz Soares & Antonio Augusto de Paula Xavier & Ariel Orlei Michaloski, 2020. "Occupational Risk Evaluation through Infrared Thermography: Development and Proposal of a Rapid Screening Tool for Risk Assessment Arising from Repetitive Actions of the Upper Limbs," IJERPH, MDPI, vol. 17(10), pages 1-19, May.
    2. Oliver Lotter & Tobias Lieb & Jochen Molsner & Viktor Breul, 2021. "Predictors for Clinical Outcomes Related to Upper Extremity Musculoskeletal Disorders in a Healthy Working Population," IJERPH, MDPI, vol. 18(17), pages 1-15, August.

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