Page 133 - Prevention and Treatment of Incisional Hernia- New Techniques and Materials

was 25.9 (SD 5.1) and median time to follow-up was 49 months (IQR 30-75). Of all the 150 operations, 119 patients were operated due to malignant disease and 31 times due to disease of benign nature (diverticulitis, crohns disease, colitis ulcerosa, stulas etc). Most patients (92.4%) treated for malignant disease were operated by means of APR. Most patients (68.7%) treated for a disease of benign nature were operated by means of a HMP. In all midline closures a continuous closure technique with a slowly absorbable suture was used. The suture length to wound length ratio was not measured.
Parastomal and incisional hernia
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Risk factors
All possible risk factors were scored and the results are presented in Table 1. The presence of a PSH was a highly signi cant risk factor for IH occurrence (p <0.001). HMP, age and length of the incision were also signi cant risk factors for developing IH. AAA and emergency operation both showed a tendency to increase the risk for IH. No di erences were discovered between hospitals or follow-up period. During univariate analysis an OR of 7.2 (95% CI 3.3 – 15.7) was found for PSH on IH occurrence. When possibly confounding variables were controlled for in the logistic regression analyses (BMI, age, length of the incision, type of operation, emergency operation and radiotherapy), PSH
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