سمانه عباس زاده

Musculoskeletal disorders are one of the most common work-related diseases in the world, and surgeons have a high risk of suffering from musculoskeletal problems more than other medical professions due to continuous dynamic and static activities. In the present study, in order to design a device to reduce musculoskeletal pressure in surgeons, the preva‎lence of musculoskeletal problems in surgeons has been investigated first, then the examination of different operating postures and their eva‎luation in terms of ergonomics and the pressure on the body parts of surgeons has been done, until the product Finally, according to the user's needs and wishes, working conditions that require immediate intervention should be designed. Research method: This applied-experimental study, which was conducted based on the "user-centered" design method. First, to determine the amount of musculoskeletal disorders, surgeons with different specialties were studied in different departments of Ibn Sina Hospital in Tehran affiliated to Tehran University of Medical Sciences, Imam Hossein Hospital in Tehran affiliated to Shahid Beheshti University in Tehran, Gandhi Limited Surgery Center in Tehran. Nordic musculoskeletal disorders symptoms questionnaire and occupational characteristics questionnaire were completed for 23 surgeons. Then, in order to find the design features and find out the user's preferences in the designed product, a semi-structured interview was conducted in three stages. AHP analysis was done based on user preferences to choose the final design. Finally, SUS index analysis was done to test usability and acceptance, all data processing was done by Excel software. Results: The present study showed that there is a direct relationship between the number and duration of operations and the preva‎lence of musculoskeletal disorders. The more the number of procedures per week and the longer the duration of the procedures, the more disorders will increase. The highest frequency of work activity type is "permanent standing" with 86.95% and the highest preva‎lence of musculoskeletal disorders with an average of 14 registered members is related to this type of operation. Also, 53.8% of people felt burning pain or numbness during the operation, the most of which was related to the back (30.77%) and neck (23.08%), based on which the focus of the design of the wearable chair was to reduce the musculoskeletal pressure of this type of activity. The results of the SUS index showed that out of 8 people, 4 people were at the upper limit of acceptance and two people were at the borderline limit of accepting the final design of the wearable chair, which was 75% of the design acceptance rate.

جراح , اختلالات اسكلتي – عضلاني , طراحي كاربر محور , صندلي پوشيدني

surgeon , Musculoskeletal Disorders , User Centered Design , wearable chair

Samane Abbaszade

Dr. Koleini - Dr. Khorram