Resources / Publications

Scientific Publication Citing Dragonfly

Patient-specific glenoid guide with a reusable guide holder

Christopher Eash (1)
United States Patent, February 2018

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Keywords

Patient-specific, Shoulder arthroplasty, Implant, Shoulder joint replacement, Reaming device, Alignment guide, Glenoid, Bone preparation guide

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Abstract

A glenoid device for preparing a shoulder joint of a patient includes a reusable guide holder having a body between an upper surface and a lower surface and a bore passing through the body of the guide holder. The glenoid device also includes a patient-specific glenoid guide having a body with an upper and lower surface. The lower surface of the patient-specific glenoid guide is configured as a negative surface of a glenoid face based on preoperative image scans of the shoulder joint of the patient. The upper face of the patient-specific glenoid guide is configured to be coupled and contact the lower face of the guide holder, such that the bore of the guide holder is aligned along a patient-specific bore through the body of the patient-specific glenoid guide and along a corresponding alignment axis of the patient-specific glenoid guide.

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How Our Software Was Used

Dragonfly was used for computer modeling to obtain three-dimensional computer images of the patient's anatomy. Design of patient-specific implants and associated tools, including, for example, alignment guides, cutting/milling/reaming/broaching or other tools for the surgical preparation of the joint.

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Author Affiliation

(1) Biomet Manufacturing LLC, Warsaw, IN (US).

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