Difference in calcium metabolism following billroth-I and billroth-II procedures for gastric and duodenal ulcers

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Abstract
There have been 7 patients with postoperative osteomalacia in our series of 500 patients who had a gastrectomy for gastric or duodenal ulcers. All seven of these patients had a Billroth-II type gastrojejunostomy or esophagojejunostomy which caused food to bypass the duodenum and the upper part of the jejunum, and six of these patients showed milk intolerance and had diarrhea on food other than cow's milk. From this finding, it may be surmised that patients are predisposed to osteopenia after gastrectomy due to disorder in the process of calcium absorption and they develop osteomalacia when treated with the Billroth-II procedure, showing milk intolerance and diarrhea on food other than cow's milk.