P-064 CORRELATION BETWEEN ABDOMINAL WALL STRENGTH AND DIAMETER OF HERNIA IN PATIENTS WITH INCISIONAL HERNIA

Abstract

Abstract Aim The goal of the study was to analyse the abdominal wall strength profile in patients with incisional hernia and the relationship between the hernial defect diameter and the abdominal wall strength. Methods Observational cohort study of patients with incisional hernia (July-October 2022), classified as W2 according to the European Hernia Society. Collected data was demographic characteristics, clinical characteristics related with the hernia, and measure of the abdominal wall strength using an isokinetic dynamometer and a strain gauge. We analysed the relationship between hernia defect and abdominal wall strength with correlation tests to adjustment by age, sex, BMI, and body composition. Results 53 patients were enrolled (56,6% female) with a mean age of 57,42 age (SD 10,49). Mean BMI was 30,42 (SD 5,15), mean percentage of fat mass of 36,86% (SD 7,48), mean percentage of lean mass of 60,37% (SD 7,55), and maximum diameter of hernia defect was 6,75cm (SD 2,16). The linear regression model determined age (p = 0,02) and gender (p = 0,01) as predictor variables of the abdominal wall strength measured with isokinetic dynamometer. In terms of the relation between the hernial defect diameter and abdominal wall strength, we did not found statistically signification (p = 0,17), although largest hernia defects (p90) were related with a decrease of rate of force development (p= 0,026). Conclusions In our study, the most statistically significant predictor variables of abdominal wall strength were age and sex. Hernia defect diameter showed a tendency to a statistically signification.