Abstract
Pathology of the navicular can be a difficult entity to treat, particularly when the injury has progressed to osteonecrosis. While various nonoperative and operative modalities have been described, the emerging field of additive manufacturing has become a potential solution to this difficult problem in certain scenarios. While these implants have largely been used for fusion in the past, the concept of joint sparing with 3D printed implants is also emerging, and this case highlights a patient treated with a talonavicular joint-sparing, patient-specific 3D printed total navicular replacement.
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