Hallux Varus

Hallux varus is a varus deformity of the first metatarsal phalangeal joint. The lateral joint capsule is attenuated or absent while the medial side is contracted. This deformity can be caused by direct trauma. However, it is most often seen as an iatrogenic (sometimes unavoidable) complication of bunion surgery where aggressive medial eminence excision and soft tissue balancing techniques were performed. If the condition is addressed before the onset of arthritis, the surgeon may choose to realign the joint using capsular repair techniques and a Mini TightRope device along the lateral collateral ligaments to support the joint while it heals. If the joint is already arthritic, the surgeon may choose to perform a first MTP joint arthrodesis.

Mini TightRope^® Technique for Hallux Varus

The Mini TightRope^® is a low profile system designed to correct a number of forefoot deformities including hallux valgus, Lisfranc disruptions, Tailor’s bunion and hallux varus. Comprised of #2 FiberWire and two stainless steel buttons, this device improves foot and ankle patient care with its strength and versatility.

A FiberWire and button construct (distal approach) or FiberWire and anchor construct (proximal) are placed across the first and second metatarsals. As the FiberWire is tightened, the IM angle is reduced to a normal value (less than 9-11 degrees). Using the button or anchor construct, the suture is tied over the button, maintaining a secure reduction of the deformity. Used alone or in conjunction with soft tissue repair, this technique affords a greater degree of strength and security than can be achieved with a soft tissue repair alone.

Hallux Varus

Mini TightRope® Technique for Hallux Varus

Mini TightRope^® Technique for Hallux Varus