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[Long-term animal experiment analysis of the use of resorbable staple sutures in partial gastrectomy].

In animal experiments with a 12-month follow-up, the safety and compatibility of absorbable staple lines following gastrointestinal surgery were analysed. In two groups of pigs, partial gastrectomies with gastroduodenostomy (Billroth I, n = 10) or gastrojejunostomy (Roux-en-Y, n = 12) were performed, and Lactomer-a copolymer of glycolic acid and lactic acid-staple lines were used for closure of the lesser curvature of the stomach and the duodenal stump. Application of the staple lines caused no problems and was safe. In 1 of the 22 pigs, which died of an ileus 9 days postoperatively a suture dehiscence (4.5%) at the lesser curvature of the stomach was observed. Macroscopic examination showed no major inflammation around the staples. Microscopically complete absorption of the Lactomer staples without extensive scarification in the gastrointestinal wall could be demonstrated 12 months postoperatively. Our results yielded no contraindications for the clinical use of absorbable staple lines in gastrointestinal surgery. The manufacturer has given advance notice of smaller staples, which it is considered will be an advantage.