Orthopaedic shoulder implant
OwnerDavid Gerald Johnstoninventor
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Abstract
A shoulder implant for reestablishing a coracoacromial arch in a subject, the shoulder implant comprising: a dorsal surface substantially shaped as a coracoacromial arch of a shoulder, the dorsal surface for engaging at least a posterior portion of the acromium of the subject when implanted in the subject; and an inferior surface substantially shaped as an acromiohumeral arch of a shoulder, the dorsal surface being opposite the inferior surface. The implant may have a spacer having a convex shape to simulate the anatomic contour of a acromiohumeral arch and the spacer coupled to a baseplate. In certain embodiments, the baseplate and the spacer have a convex surface that may extend the length of the inferior surface of the acromium and anteriorly to the coracoid process.
Claims20
A shoulder implant for implanting into a subject, the shoulder implant comprising:
- a body, the body comprising:
- a shoulder implant dorsal surface substantially shaped as a coracoacromial arch of a reference shoulder, the dorsal surface for engaging at least an acromium posterior portion of an acromium of the subject when the shoulder implant is implanted in the subject;
- a shoulder implant inferior surface substantially shaped as an acromiohumeral arch of the reference shoulder, the shoulder implant dorsal surface being opposite the shoulder implant inferior surface;
- and
- a stabilization member coupled to the body for stabilizing the shoulder implant to a bone when implanted in the subject, wherein the stabilization member is a scapular spine extension that extends posteriorly from a posterior end of the body and is shaped to allow fixation to a scapular spine of the subject.
Dependencies are inferred from the claim text.