[An improvement in the technic for operations in iatrogenic injuries and cicatricial strictures of the hepatic duct and choledochus].

The authors have an experience with operations on 78 patients with scarry strictures and iatrogenic injuries of the hepatocholedochus who had transhepatic drainage of the hepaticodigestive anastomosis after Pradery--Smith and Seipol--Kurianu. The authors have developed a special method of operations. For each step there are special instruments facilitating performance of operations, reducing traumatism and minimizing the amount of postoperative complications.