Partial or complete prosthetic replacement arthroplasty of the distal radioulnar joint
AssigneeAcumed LLC
InventorsWilliam B. Kleinman, Randall J. Huebner, Larry W. Ehmke, Marcus Mohr
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Abstract
System, including methods, apparatus, and kits, for replacement of at least one surface region of a distal radioulnar joint using at least one prosthesis. In some embodiments, the system may provide restoration of normal, unconstrained biomechanics of the joint, which may preserve rotation and translation and ensure durability of the joint.
Claims20
A method of at least partially replacing a distal radioulnar joint formed by a radius and an ulna, the method comprising:
- cutting the ulna to form a pair of ulnar segments;
- arranging the ulnar segments out of alignment with each other to expose a radial region and an ulnar region of the distal radioulnar joint;
- removing bone from the radial region, the ulnar region, or both;
- attaching a radial prosthesis to a distal end portion of the radius, an ulnar prosthesis to a distal end portion of the ulna, or both;
- returning the ulnar segments to alignment with each other;
- and
- fixing the ulnar segments in alignment with one another and such that the segments cannot move relative to each other.
A method of at least partially replacing a distal radioulnar joint formed by a radius and an ulna, the method comprising:
- cutting the ulna to form a proximal segment and a distal segment;
- moving at least one of the segments relative to the other segment to expose a radial region and an ulnar region of the distal radioulnar joint;
- removing bone from the radial region, the ulnar region, or both;
- attaching a radial prosthesis to a distal end portion of the radius, an ulnar prosthesis to a distal end portion of the ulna, or both;
- and
- fixing the proximal and distal segments in fixed alignment with one another.
A method of at least partially replacing a distal radioulnar joint formed by a radius and an ulna, the method comprising:
- cutting the ulna to form a pair of ulnar segments;
- changing a configuration of the cut ulna to move an ulnar region of the distal radioulnar joint apart from a radial region of the joint;
- removing bone from the radial region, the ulnar region, or both;
- attaching a radial prosthesis to a distal end portion of the radius, an ulnar prosthesis to a distal end portion of the ulna, or both;
- fixing the ulnar segments such that the segments do not pivot relative to each other.
Dependencies are inferred from the claim text.