Subtalar arthrodesis nail implant system
AssigneeUniversity of Kentucky Research Foundation
InventorsArun Aneja, Arjun Srinath, Gavin Hautala, Lorenzo Deveza
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Abstract
A subtalar nail implant system, an apparatus and spacer for such a subtalar nail implant system and methods of fusing a subtalar joint of a patient allow for primary and revision arthrodesis of the subtalar joint. The system allows for a more stable fusion construct, compression at the fusion site and immediate weight-bearing.
Claims56
A subtalar nail implant system, comprising:
- a subtalar nail;
- a spacer adapted to fit in a subtalar joint between a talus and a calcaneus of a patient;
- and
- a plurality of fasteners to secure the subtalar nail to the talus and to the calcaneus across the subtalar joint of the patient.
A method of fusing a subtalar joint of a patient, comprising:
- placing a subtalar nail through a calcaneus into a talus of the patient;
- and
- fixing the subtalar nail to the talus and the calcaneus.
A method of fusing a subtalar joint of a patient, comprising:
- exposing the subtalar joint;
- placing a trial and cooperating guidewire outrigger in the exposed subtalar joint;
- placing a guidewire from the calcaneus to the talus through a guidewire receiver in the trial using the guidewire outrigger as a guide;
- placing a subtalar nail across the subtalar joint along the path of the guidewire;
- replacing the trial with a spacer of appropriate thickness to properly restore height to the subtalar joint;
- compressing the subtalar joint;
- and
- fixing the subtalar nail to the talus and the calcaneus.
An apparatus for use in fusion of a subtalar joint of a patient, comprising:
- a trial having a body including a guidewire receiver;
- and
- a cooperating guidewire outrigger connected to the body and adapted for aligning a guidewire with the guidewire receiver in the body.
A spacer for a subtalar joint, comprising a body having a receiver adapted to receive a subtalar nail.
Dependencies are inferred from the claim text.