METHOD OF RESTORATION OF FINGERS EXTENSORS TENDONS OF HAND BY MESODERMAL AUTOGRAFT Russian patent published in 2019 - IPC A61B17/56 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to invasive interventions, and can be used for treating the patients with injuries, extensive deep burns of the hand, as a result of which there was damage of the extensor muscles tendons, as well as post-burn deformations and hand contractures developed as a result of damage and defect of finger extensor tendons. Surgical approach is performed on the back side of the wrist, a zone of damage of the tendons of finger extensors is exposed. Proximal and distal parts of injured tendons are separated. In the position of maximum extension of fingers determining the size of defect of tendons and measuring diastasis between proximal and distal part. Proceeding from the obtained data, transplant size is determined, and epidermal layer of skin is removed by means of dermatome in thigh area. That is followed by taking a deeper underlying mesodermal layer of skin with the help of a dermatome, the length and width of which is determined based on the size of the defect of the tendons. Donor's wound is closed with the epidermal carpal tunnel obtained at the first stage of the operation. Edges of the obtained mesodermal flap are leveled; the flap is divided in lengthwise direction into 7–10 mm wide sections and length equal to diastas size between the proximal and distal ends of the tendon. Pieces of the mesodermal autograft are sutured edge-to-edge with residues of the proximal and distal parts of the injured tendons using the tendon suture technique. Wounds of the rear of hand with graft are covered with autodermal flaps fixed by interrupted sutures. Brush is immobilized with a transosseous delivery device or a splint.

EFFECT: method provides a simple, affordable, fast-to-implement and highly effective restoration of finger extensor tendons by using mesodermal autograft sections.

1 cl, 27 dwg, 1 ex