[Leg lengthening using callotasis. I. History of lengthening of extremities and surgical technics].

In the first part of the article divided into two sections the authors describe the history of approaches to limb length discrepancy and they compare several methods and discuss their advantages and disadvantages. The surgical method proper used at the clinic is described incl. preoperative preparation and deliberations as used at the clinic up to the procedure used for removing the fixator after completion of the lengthening of long bones. The operation proper is described in detail from application of the apparatus to performance of osteotomy. The lengthening process is also described.