چكيده به لاتين
Standing, while is a natural position, even though it is done based on principles and standards, however, it may cause pain and trouble in the foots. Some adverse effects of standing for a long term includes foot swelling, varicose, muscle fatigue, particularly in the foot and waist areas, neck and shoulder stiffness and other physical issues.
This study investigates the position of cardiac surgeon. This is while, any surgery has its specific position and its specific relations.
During cardiac surgery, surgeon stands for a long time in a still position such that his trunk leans forward to have a complete dominance on middle parts of patient’s chest.
As the result of leaning forwards, besides standing for a long time, it provides high pressure on the waist and knee of surgeons such that according to statistics, high percentage of surgeons suffer early lumbar disc and varicose while in the higher ages of surgeon together with increased numbers of his surgery, his surgical experiences will be also promoted. However, the pressure on lumbar disc and varicose may prevent him/her to do his/her job followed by reduced concentration on the surgery as well as reduced quality of surgery; while, cardiac surgery is a vital operation with direct effect on patient’s life.
This study was conducted by ucd method, interview, surveying, field observation and imaging from 25 cardiac surgeon and 3 scrubs.
During study, some limitations and job situations of surgeon were extracted and brought in a list. Then, by interviewing to surgeons, a list of short term and long term injuries from their surgical operations were extracted and prepared.
Finally, by studying these limitations and injuries, we found that: surgeon requires sitting on a chair during operation and it must be according to the ergonomic conditions and posture of cardiac surgeon together with observing the limitations of this profession. For example, the chair must be such designed that it could put the surgeon in a situation between standing and sitting position together with reducing the weight pressure on seat and divides it between three points i.e. seat, leg and sole; the bottom of the chair must come with an angle of 135 degrees between trunk and leg to maintain the hip arc. In addition, surgeon must be seat on it with an open angle between legs in a situation that incurring least pressure on lumbar disc.
