METHOD FOR LOWER LID RECONSTRUCTION IN CASE OF FULL-LAYER EXTENSIVE AND SUBTOTAL DEFECTS Russian patent published in 2017 - IPC A61F9/00 A61F9/07 

FIELD: medicine.

SUBSTANCE: for reconstruction of the back plate of the lower eyelid in case of extensive and subtotal full-layer eyelid defects, back plate defect is replaced using lower periosteal and tarso-conjunctival flaps on a stem. A periosteal flap in the form of curved bar with an angle of 85-120°between the horizontal and vertical parts, down the anterolateral surface of the frontal process of the zygomatic bone, considering that the periosteal flap base is located vertically along the edge of the outer wall of the orbit or up to the front boundary of the tubercle of the zygomatic bone so that the horizontal line that intersects it is located between the middle of the pupil to 3 mm above. The vertical size of the periosteal flap base is 5-14 mm, flaps length is 4-20 mm. Relaxation incisions are applied to the anterior stem of the medial adhesion of the lower eyelid. A tarso-conjunctival flap is cut out from the upper eyelid on the upper eyelid levator, the remaining defect of the lower eyelid is closed by the flap and sutured to the periosteal flap on the lateral side and to the eyelid medial adhesion lower stem on the medial side. Front plate defect of the eyelid is closed with a cutaneous muscle flap, or a displaced skin flap, or a free skin graft. After 4 weeks, the stem of the upper eyelid levator is dissected in the inter-palpebral space.

EFFECT: method allows to create a skeleton structure of the lower eyelid in case of extensive and subtotal defects that provides an adequate support of the lower eyelid and its fixation to the bone, reliable strengthening of the external can thus, eyelid fixation to the medial can thus, long-lasting traction of the lower eyelid upwards due to the upper lid levator, good adaptation to the eyeball leading to the achievement of better functional and cosmetic results of reconstruction.

1 ex, 3 dwg