Acromioclavicular joint fixation using suture button contstruct with dog bone-shaped button

摘要

Methods and systems for AC joint repair using a fixation device having a specific “dog bone” configuration in a minimally invasive approach. One AC fixation system is formed of dog bone shaped buttons and at least one suture tape used to secure the buttons during an AC joint repair. The buttons are provided with openings that allow the passage of suture/tape limbs. Another AC joint fixation system is formed of a metal button inserted over a fused/joined construct having multiple flexible strands. The fused/joined construct is formed of multiple independent and separate suture strands and/or suture tapes that are joined (fused together) at about the midpoint of the tapes and/or sutures, resulting in multiple independent limbs of suture/tape. A suture tape loop construct having an integrally formed eyelet at one end of the loop may also be used in the fixation systems.

主权项

1. A method for internal fixation of acromioclavicular joint dislocations, comprising in order the steps of:
providing an internal fixation system comprising a first fixation device with a first configuration having a first plurality of slotted openings, a second fixation device with a second configuration having a second plurality of slotted openings, and a suture loop construct between the first and second fixation devices, the suture loop construct being passed through the first plurality of slotted openings such that one end of a flexible loop engages the first fixation device and attaches to the first fixation device, wherein the first fixation device is an elongated suture button having an elongated body with the first configuration, the first configuration being a dog bone shaped configuration comprising two lobes at each end of the elongated body, the elongated body including two slotted openings separated by a middle portion, the slotted openings extending from an outer circumference of the elongated body and to a plurality of apertures, the slotted openings allowing the suture loop construct to pass through the elongated body; attaching the first fixation device to the suture loop construct by passing the flexible loop through the two slotted openings and through the plurality of apertures of the elongated body so that the flexible loop engages the first fixation device; passing the flexible loop through clavicle and coracoid tunnels; pulling the flexible loop to secure the first fixation device underneath the coracoid; cutting an end of the flexible loop to create limbs; securing the second fixation device over the clavicle tunnel by securing the limbs to the second fixation device; and reducing the distance between the clavicle and the coracoid by traction of the suture loop construct.