METHOD FOR ELIMINATION OF HYPEREXTENSION OF PROXIMAL INTERPHALANGEAL JOINT OF FINGER AFTER TWO-STAGE TENDOPLASTY Russian patent published in 2024 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to traumatology and orthopaedics, and can be used for elimination of hyperextension of proximal interphalangeal joint arising after injury of hand flexor tendons. Method involves approaching the structures of the proximal interphalangeal joint, removing the scars, mobilizing and performing the shortening repair. Access is made to the dorsal surface of the formed tendon sheath and structures of the palmar surface of the proximal interphalangeal joint, through old scars, along the palmar surface of the finger in the projection of the PIPJ. Neurovascular bundles are shifted aside. Back wall of the canal formed around the prosthesis inserted during the tendoplasty is separated from the level of the PIPJ to a distal one-third of the main phalanx. It is separated from scars and surrounding tissues, mobilized, U-shaped horizontal suture is applied. Excess canal tissues formed during suture tightening are displaced to the rear, bringing it as close as possible to the place of natural attachment of the palmar plate on the main phalanx. Skin sutures and an alcohol bandage are applied. Immobilization is performed.

EFFECT: method provides elimination of hyperextension of proximal interphalangeal joint of finger, with restoration of its function and prevention of recurrence of this pathology due to the fact that the incision along the old cicatrix makes it possible to exclude skin-cicatricial contracture in the postoperative period and reduces risks of necrosis of skin flaps, shift of neurovascular bundles to the side eliminates their damage, separation of the formed canal dorsal wall, and separation from scars and surrounding tissues, and mobilization, allows to use it to pull up the middle phalanx to the main one, careful attitude in the surface adjacent to the tendons, allows to reduce risks of formation of cicatricial changes on sliding surface, and application of U-shaped horizontal suture allows to bring together distal end of canal with proximal one, thus pulling middle phalanx to main one.

1 cl, 13 dwg, 2 ex