[Measurement of calcium content in the blood and other biological fluids by Arsenazo III complexone].

A method of photometric measurement of total calcium in the serum and other biological liquids using Arsenazo III color complexone is offered. Physicochemical characteristics of Arsenazo III (mol extinction, affinity for other ions, spectral characteristics, and its complex with calcium) are described. Calcium was measured in 750 normal subjects, its reference value was 2.

[Hip joint arthrodesis with vascularized bone autotransplant on fixed neurovascular pedicle].

The surgical technique, clinical and anatomic explanation of the osteoplastic part of the compression arthrodesis of a hip joint has been demonstrated. The spongiform vascularized transplant from the upper flaring portion of the illeum was used for the operation. The basis for the transplant flap is a front part of musculus gluteus medius with arteries, veins and a nerve.

[The functional and morphological changes in the intestinal sphincter apparatus created by muscle flaps on a fixed vascular-neural pedicle].

Adaptive reaction to new conditions of functioning were studied morphofunctionally in an intestinal sphincteric apparatus formed by mm. gracilis, adductor longus, rectus femoris and semitendinosus in 100 experimental animals. It is established that reorganisation of vascular bed and muscular grafts mobilitive activity finishes up by 30th postoperative day and it is day 90 for morphological structures.

[Ways of raising viability of the intestinal obturator made of the gracilis muscle].

Polarographic examination was conducted in 10 patients with incompetence of the sphincter ani to study the effect of biological preparation of the gracilis muscle for creation of intestinal obturator apparatus. It was established that in initial 20% reduction of pO2, in response to compression of additional vessels and training of 30 to 60 minutes not only a sufficient arterial flow of blood to the muscle through its main supplying vessel develops but also the previously nonfunctioning network of anastomoses. Stabilization of pO2 is an objective criterion of the preparedness of the muscle for transplantation.

[The principles of autoplasty using a compound graft on a fixed vascular-neural pedicle in treating tumors of the proximal femur].

The authors give clinico-anatomical grounds of saving operations for benign and malignant tumors of the proximal part of the thigh bone with vascularized grafts on a fixed vessel-nerve pedicle. In order to make up defects of the bone the authors propose transplants from the upper flaring portion of the ilium on a "pedicle" consisting of the superior gluteal artery, veins and nerve, and a method of creation of a fascial-muscular capsule of the joint with the removal of the tumor together with the capsule and part of the muscles and the following individual prosthesis.