Segmental knee arthroplasty
AssigneeBonutti Skeletal Innovations LLC
InventorPeter M. Bonutti
Life of this patent
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Abstract
A method for unicompartmental knee replacement. Replacement of a medial or lateral compartment may be through a limited incision and patellofemoral replacement may be through the same incision or another incision. An embodiment may include a trochlear implant and medial implant. Implants may be dimensioned and configured so that bone is located between the implants. Implants may be modular, being assembled inside the body or outside the body prior to implantation.
Claims30
A method for segmental, unicompartmental replacement of at least two portions of a knee joint, the method comprising:
- identifying at least two of a medial joint articulation surface, lateral joint articulation and trochlear joint articulation surface of a femur;
- selecting at least two joint replacement components configured for alignment relative to each other and configured to replace at least part of the at least two articulations surfaces of the femur;
- and
- replacing at least two of the medial, lateral, and trochlear joint articulation surfaces of the femur with the at least two joint replacement components, wherein the at least two joint replacement components are proximate each other on the same femur.
The method for segmental, unicompartmental replacement of at least two portions of a knee joint, the method comprising:
- placing an instrument configured to align at least two of a trochlear portion, medial portion, and lateral portion of the knee joint;
- removing at least part of at least two of the trochlear, medial, and lateral portions of a femur;
- positioning a first arthroplasty component adjacent at least one of the medial and lateral portions and a second arthroplasty component adjacent the trochlear portion, wherein the instrument positions the first and second arthroplasty components for alignment relative to each other and for replacing at least a part of an articulation surface of the at least one of the medial and lateral portions and the trochlear portion of the femur;
- and
- positioning the first and second arthroplasty components proximate one another on the same femur.
Dependencies are inferred from the claim text.