TOTAL KNEE JOINT MOLD AND METHODS
3 Assignments
0 Petitions
Accused Products
Abstract
In one embodiment, a method for treating an infected implant area of a knee joint comprises surgically accessing the implant area, and inserting a tibial component into the tibia using an antibiotic-impregnated material. A femoral component is formed that is configured to interact with the tibial component by stable knee joint articulation and motion. The femoral component is formed of an antibiotic-impregnated material using a mold. The femoral component is attached to the femur using an antibiotic-impregnated material, and the tibial component is interfaced with the femoral component to form a stable temporary knee joint capable of reducing the spread of infection while permitting movement of the knee joint.
57 Citations
30 Claims
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1-20. -20. (canceled)
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21. A kit for treating an infected implant area of a knee joint, the kit comprising:
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a tibial component for placement into the tibia using an antibiotic-impregnated material, wherein the tibial component comprises a tray, a central stem that is inserted into a opening in the tibia and a posterior stabilizing protrusion, and wherein the antibiotic-impregnated material is placed onto the central stem so as to be within the opening in the tibia, wherein placement of the central stem into the opening in the tibia provides stability to the tibial component while attached to the tibia; and a mold for forming a femoral component using an antibiotic-impregnated material, the mold comprising a smooth U-shaped back surface with a recess for receiving the antibiotic-impregnated material, wherein the recess contains two depressions that are spaced apart from each other by a connecting portion, whereby the resulting femoral component comprises a one-piece structure having two outer surfaces that are spaced apart from each other by a center section, and wherein the femoral component includes a front surface that is configured to interface with the tibial component and a back surface that is configured to interface with the femur. - View Dependent Claims (22)
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23. A method for treating an infected implant area of a knee joint, the method comprising:
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surgically accessing the implant area; removing an infected total knee replacement implant; inserting a tibial component into the tibia using an antibiotic-impregnated material, wherein the tibial component comprises a tray, a central stem that is inserted into a opening in the tibia and a posterior stabilizing protrusion, and wherein the antibiotic-impregnated material is placed onto the central stem so as to be within the opening in the tibia, wherein placement of the central stem into the opening in the tibia provides stability to the tibial component while attached to the tibia; forming a one-piece femoral component that is configured to interact with the tibial component, wherein the femoral component is formed of an antibiotic-impregnated material using a mold while the implant area is accessible, wherein the femoral component has a front surface that interfaces with the tibial component and a back surface that interfaces with the femur, and wherein the step of forming the femoral component further comprises pressing the antibiotic-impregnated material into the mold to form the antibiotic-impregnated material in the shape of the femoral component, removing excess antibiotic-impregnated material from a back surface of the mold and smoothing the entire back surface of the femoral component using a straight edge which provides the femoral component to be temporarily contacted with the femur, and then removing the mold and permitting the femoral component to harden; attaching the femoral component to the femur using an antibiotic-impregnated material with the femoral component resurfacing the entire distal; and interfacing the tibial component with the femoral component by placing the posterior stabilizing protrusion of the tibial component into the recess of the femoral component, with the two outer surfaces resting on the tray to form a temporary knee joint capable of reducing the spread of infection while permitting movement of the knee. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification