Abstract
Tension is one of the most discussed terms related to hernia surgery and repair. Despite the universally accepted opinion that tension and reduction of tension are important concepts in hernia repair, there is very little known about the physiologic tension of the abdominal wall related to ventral hernia repair. The purpose of this project was to attempt to measure physiologic tension in patients without hernia repair and help determine a normal baseline tension. Patients were enrolled in a prospective institutional review board-approved protocol to measure abdominal wall tension from February 2014 to present. Patients undergoing abdominal surgery without hernia repair were included. Demographic information and operative details were documented. Abdominal wall tensions were measured using scales attached to Kocher clamps that are clamped to the fascia and then brought together in the midline. Total tension, surgeon's estimation of tension, and grading of the fascia were recorded. Descriptive statistics were calculated. Eleven patients met the inclusion criteria and had tension measurements performed during surgery. The average age was 58 years, with 55 per cent of them being white and 82 per cent being male, with an average BMI of 27. Operations included exploratory laparotomy for small bowel pathology in six patients, colorectal surgery in three patients, and splenectomy in a trauma patient. Average tension measurements for these patients were 1.9 lbs. Surgeon grading of tension was an average of 2.2 (range, 1-5). Obtaining tension measurements is feasible during abdominal surgery. Physiologic tension seems to be approximately 2 pounds. Further study is needed with a larger sample of patients.
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