Spacer block
First Claim
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1. A knee arthroplasty system for use in a patient'"'"'s knee joint, the knee joint including a tibia and a femur, the system comprising:
- a spacer block instrument including a base portion, a tibial component extending from the base portion and configured for placement against a tibia, and a femoral component configured for placement against a femur, the femoral component being rotatably coupled to the tibial component; and
one or more spacer block shims structured for removable attachment to the tibial component.
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Abstract
A knee arthroplasty system for use in a patient'"'"'s knee joint comprises a spacer block instrument including a base portion, a tibial component extending from the base portion and configured for placement against a tibia, and a femoral component configured for placement against a femur. The femoral component is rotatably coupled to the tibial component. The system further includes one or more spacer block shims structured for removable attachment to the tibial component.
139 Citations
20 Claims
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1. A knee arthroplasty system for use in a patient'"'"'s knee joint, the knee joint including a tibia and a femur, the system comprising:
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a spacer block instrument including a base portion, a tibial component extending from the base portion and configured for placement against a tibia, and a femoral component configured for placement against a femur, the femoral component being rotatably coupled to the tibial component; and one or more spacer block shims structured for removable attachment to the tibial component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20)
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15. A method of using a knee arthroplasty instrument to evaluate a resected knee joint, the method comprising:
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observing a resection gap between a distally resected femur and a proximally resected tibia; selecting a first spacer block shim from a plurality of spacer block shims; attaching the first spacer block shim to a tibial component of the knee arthroplasty instrument; inserting the knee arthroplasty instrument into the resection gap, including positioning the tibial component and attached first spacer block shim adjacent to the proximally resected tibia and positioning a femoral component of the knee arthroplasty instrument adjacent to the distally resected femur, the femoral component being rotatably connected to the tibial component; and evaluating tension in the resected knee joint, including determining a first joint angle formed between the tibial component and the femoral component. - View Dependent Claims (16, 17, 18, 19)
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Specification