Modular resurfacing prosthetic
AssigneeBiomet Manufacturing, LLC
InventorRyan C Lakin
Life of this patent
Estimating the term…
Abstract
Femoral head modular resurfacing systems are described. The systems primarily include a head component and a stem component. The configuration of the head component and stem components allow for minimum invasiveness into the femur head region, thus conserving greater amounts of bone tissue than would be possible with conventional hip replacement systems. The systems also provide for various angles and offsets to be achieved between the systems and the femur head. The systems are useful in partial hip replacement procedures, as well as total hip replacement procedures, in which case an optional acetabular component would also be employed.
Claims20
A method for implanting a joint prosthesis into a hip joint, the method comprising:
- removing only a first portion of a femoral head bearing surface while the joint is in a non-distracted position;
- removing only a second portion of an acetabulum bearing surface while the joint is in a non-distracted position;
- implanting a first prosthetic device onto the femoral head to replace the first portion, while the joint is in a non-distracted position, the first prosthetic being positioned to place a first articulating bearing surface flush with a non-removed articulating bearing portion of the head;
- and
- implanting a second prosthetic device into the acetabulum to replace the second portion, while the joint is in a non-distracted position, the second prosthetic being positioned to place a second bearing surface flush with a non-removed bearing portion of the acetabulum.
A method for implanting a joint prosthesis into a hip joint, the method comprising:
- minimally distracting a femoral head from an acetabular socket of the joint to place the joint into a minimally distracted position;
- forming a first flat surface on only a portion of a bearing surface of the femoral head while the joint is in the minimally distracted position;
- forming a second flat surface on only a portion of an acetabulum bearing surface while the joint is in the minimally distracted position;
- implanting a first prosthetic device onto the first flat surface, while the joint is in the minimally distracted position, the first prosthetic being positioned to place a first articulating prosthetic bearing surface flush with a non-removed articulating bearing portion of the femoral head;
- and
- implanting a second prosthetic device onto the second flat surface, while the joint is in the minimally distracted position, the second prosthetic being positioned to place a second articulating bearing surface of the second prosthetic flush with a non-removed articulating bearing portion of the acetabulum.
A method for implanting a joint prosthesis into a hip joint, the method comprising:
- removing only a first portion of a femoral head while the joint is in a non-distracted position;
- removing only a second portion of an acetabulum while the joint is in a non-distracted position;
- implanting a means for resurfacing only a portion of the femoral head while the joint is in a non-distracted position, the means for resurfacing only a portion of the femoral head being positioned to place a first articulating bearing surface flush with a non-removed articulating bearing surface of the femoral head;
- and
- implanting a means for resurfacing only a portion of the acetabulum while the joint is in a non-distracted position, the means for resurfacing only a portion of the acetabulum being positioned to place a second articulating bearing surface flush with a non-removed articulating bearing portion of the acetabulum.
Dependencies are inferred from the claim text.