[Periprosthetic membrane island flap with axial pedicle. Experimental study on the effect of time and expanded volume].

This experimental study, conducted in the rat, assessed the influence the volume of expansion and time after expansion on the vascularised area of a periprosthetic membrane axial pedicle (epigastric) expanded island flap. 15 Wistar rats were operated on and divided into 3 series according to the expanded volume (20 cc, 40 cc) and the time (1, 2 months). The membrane vascularisation derived from the pedicle was study by microradiography based on geometric parameters.

[Experimental concept of periprosthetic membrane neo-flap with axial vascular pedicle].

This study was designed to demonstrate that progressive inflation of an expansion prosthesis placed under the epigastric pedicle of the rat induced the formation of vascular connections between this vessel and the periprosthetic membrane. 17 Wistar rats were operated under general anaesthesia. The 7 cc prosthesis was implanted into the inguinal fold and the valve was placed in a dorsal position via limited incisions.

[Cutaneous expansion in burns sequelae].

This technique of skin expansion with inflatable balloons has rapidly become generally used since Neuman's and Radovan's work. It offers new prospects for the treatment of the sequellae of burns as it allows increasing the surfaces of the remaining unaffected skin and using them to cover the excision of scar lesions by local or remote flaps. Experience with more than 500 implanted balloons is assessed, demonstrating very satisfactory general results in spite of a still too high number of complications, which increasingly refined techniques aim at reducing.

The nutrient flap: a new concept of the role of the flap and application to the salvage of arteriosclerotic lower limbs.

The nutrient flap is a new concept of the role of the flap. It has three functions: (1) it provides supplementary blood flow to ischemic zones, (2) it assists venous drainage in regions of venous insufficiency, and (3) it induces the formation of a capillary network. Its skin covering role is only accessory.

[The nutrient flap. Its application in saving lower limbs involved in stage IV arteritis].

The skin covering role of the nutrient flap is only accessory. However, this role is essential for an ordinary flap. In stage IV arteriosclerosis of the lower limbs when classical revascularization techniques cannot be performed, the nutrient flap can be spread over the distal extremity of the limbs.