Hallux valgus repairs using suture-button construct

Abstract

A technique and associated instrumentation for correcting large intermetatarsal angles that result from hallux valgus. The system includes a button and a suture loop attached to the button. A suture strand is threaded through holes in the button to attach the button to the suture. The suture ends are then brought together (by being swaged, spliced or cinched together, for example) to form the suture loop comprising a continuous, uninterrupted suture loop with a single strand of swaged-together ends. The swaged-together ends may be attached to a suture passing instrument such as a K-wire (Kirschner wire) that may be further used to drill a hole through the first and second metatarsals. The swaged-together ends of the suture are then passed through the drill holes in the first and second metatarsals; and the ends of the suture are pulled until the button abuts the second metatarsal. The swaged together portion of the suture loop is then cut, and the free suture ends are passed through holes in another (second) button. The suture ends are pulled to adjust the first metatarsal to a correct intermetatarsal angle, and the first metatarsal is secured in place by tying the ends of the suture together against the second button.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 314,015, filed Mar. 15, 2010, the entire disclosure of which is incorporated by reference herein.FIELD OF THE INVENTION[0002]The present invention relates to the field of surgery and, in particular, to a bunion repair technique using a suture-button construct and to a device.BACKGROUND OF THE INVENTION[0003]Hallux valgus, more commonly known as bunions, is a condition where the first metatarsal deviates inward toward the second metatarsal. This results in an intermetatarsal angle that is too large. Bunions are caused when certain tendons, ligaments, and supportive structures of the first metatarsal no longer function correctly causing the first metatarsal to be misaligned. Bunions may be caused by a variety of conditions intrinsic to the structure of the foot, such as flat feet, excessive ligamentous flexibility, abnormal bone structure, and certain neurological co...

AI Technical Summary

Benefits of technology

The present invention provides a system and method for correcting intermetatarsal angles caused by hallux valgus. The system includes a button and a continuous suture loop attached to the button. The suture loop is formed by swaging or cinching together the ends of a suture strand that is woven through the button. The suture is then passed through drill holes in the metatarsals and attached to another button. This suture- button construct is used to secure the metatarsals in place and adjust the intermetatarsal angle. The technical effects of this invention include simplifying the procedure of correcting large intermetatarsal angles, reducing the duration of surgery, and improving the stability and accuracy of the correction.

Problems solved by technology

This results in an intermetatarsal angle that is too large.

This procedure requires a higher degree of technical difficulty, however, since both drill holes must be parallel and in the same plane.

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