Implant for knee replacement
The present invention provides a system and method for gender specific medical treatment. The medical treatment system can include gender specific medical devices which are designed to account for the anatomical and physiological differences in the male and female genders. The medical treatment system can also include a medical device identification system which differentiates use for male and female patients. The medical device identification system includes a container adapted to receive a medical device and a gender specifier. The gender specifier is used to identify the gender the medical device in designed for. The gender specifier can be in text form, symbolic form, or color coded.
1. A method for providing prosthetic implants for a surgical procedure, the method comprising:
providing a first femoral component of a knee joint implant for the surgical procedure, the first femoral component designed, configured, and dimensioned for female anatomy, the first femoral component including a trochlear groove portion, a trochlear groove angle, a bearing surface having a maximum medial-lateral dimension, and a bone contacting surface having a maximum anterior-posterior dimension; and
providing a second femoral component of a knee joint implant for the surgical procedure, the second femoral component not specifically designed, configured, and dimensioned for female anatomy, the second femoral component including a trochlear groove portion, a trochlear groove angle, a bearing surface having a maximum medial-lateral dimension, and a bone contacting surface having a maximum anterior-posterior dimension,
wherein the maximum anterior-posterior dimension of the bone contacting surface of the first femoral component is the same as the maximum anterior-posterior dimension of the bone contacting surface of the second femoral component to enable the bone contacting surface of the first femoral component and the bone contacting surface of the second femoral component to be positioned on one prepared femur,
wherein the prepared femur comprises a distal portion of the femur that is cut to provide at least three implant contacting surfaces,
wherein the maximum medial-lateral dimension of the bearing surface of the first femoral component is smaller than the maximum medial-lateral dimension of the bearing surface of the second femoral component,
wherein the trochlear groove portion of the second femoral component is wider than the trochlear groove portion of the first femoral component, and
wherein the trochlear groove angle of the first femoral component is larger than the trochlear groove angle of the second femoral component.
2. The method of claim 1 , wherein the surgical procedure is a total knee replacement and each of the first and second femoral components is configured and dimensioned to replace at least a portion of the lateral and medial condyles of the knee.
3. The method of claim 2 , wherein the first femoral component includes an anterior flange having an anterior flange width and the second femoral component includes an anterior flange having an anterior flange width and wherein the anterior flange width of the second femoral component is wider than the anterior flange width of the first femoral component.
4. The method of claim 3 , wherein the first femoral component includes a lateral condyle portion and the second femoral component includes a lateral condyle portion and wherein the lateral condyle portion of the second femoral component is wider than the lateral condyle portion of the first femoral component.
5. The method of claim 4 , wherein the lateral condyle portion of the second femoral component is thicker than the lateral condyle portion of the first femoral component.
6. The method of claim 1 , wherein a bearing surface area of the second femoral component is greater than a bearing surface area of the first femoral component.
7. The method of claim 1 , wherein a modulus of elasticity of material of the first femoral component is greater than a modulus of elasticity of material of the second femoral component.
8. The method of claim 1 , wherein the first and second femoral components are not modular.
9. The method of claim 1 , further comprising:
providing a tibial component;
providing a cushioning material configured to couple to the tibial component and to correspond to the bearing surface of at least one of the first and second femoral components; and
providing a patella component configured to correspond to at least one of the first and second femoral components.
10. The method of claim 1 , wherein the first and second femoral components are configured to be implanted with bone cement.
11. The method of claim 1 , wherein the first and second femoral components include an ingrowth surface.
12. A system of prosthetic implants for a total knee replacement surgical procedure, the system comprising:
a first femoral component of a knee joint implant for the surgical procedure, the first femoral component including a lateral condyle portion, a trochlear groove portion, a bone contacting portion, and a trochlear groove angle; and
a second femoral component of a knee joint implant for the surgical procedure, the second femoral component including a lateral condyle portion, a trochlear groove portion, a bone contacting portion, and a trochlear groove angle,
wherein the first and second femoral components are not modular,
wherein the trochlear groove angle of the first femoral component differs from the trochlear groove angle of the second femoral component,
wherein the lateral condyle portion of the second femoral component is wider than the lateral condyle portion of the first femoral component, and
wherein the trochlear groove portion of the first femoral component is smaller than the trochlear groove portion of the second femoral component,
wherein the first and second femoral components are configured for implantation on one prepared femur, such that the bone contacting surface of the first femoral component and the bone contacting surface of the second femoral component have the same maximum anterior-posterior dimensions.
13. The system of claim 12 , wherein the trochlear groove angle of the first femoral component and trochlear groove angle of the second femoral component differ by more than five percent.
14. The system of claim 13 , wherein the trochlear groove angle of the first femoral component is greater than the trochlear groove angle of the second femoral component.
15. The system of claim 12 , wherein the prepared femur further comprises a distal portion of the femur that is cut to provide at least three implant contacting surfaces.
16. The system of claim 12 , further comprising:
a tibial component;
a cushioning material configured to couple to the tibial component and to correspond to the bearing surface of at least one of the first and second femoral components; and
a patella component configured to correspond to at least one of the first and second femoral components.
17. The system of claim 12 , wherein the first and second femoral components are configured to be implanted with bone cement.
18. The system of claim 12 , wherein the first and second femoral components include an ingrowth surface.
19. A method for providing prosthetic implants for a total knee replacement surgical procedure, the method comprising:
providing a first femoral component of a knee joint implant for the surgical procedure, the first femoral component including a maximum medial-lateral dimension and an anterior flange having an anterior flange width and a bone contacting surface having a maximum anterior-posterior dimension; and
providing a second femoral component of a knee joint implant for the surgical procedure, the second femoral component including a maximum medial-lateral dimension and an anterior flange having an anterior flange width and a bone contacting surface having a maximum anterior-posterior dimension,
wherein the maximum medial-lateral dimension of the first femoral component is smaller than the maximum medial-lateral dimension of the second femoral component,
wherein at least a portion of the first femoral component has less material than the second femoral component,
wherein the anterior flange width of the second femoral component is larger than the anterior flange width of the first femoral component, and
wherein the maximum anterior-posterior dimension of the bone contacting surface of the first femoral component is the same as the maximum anterior-posterior dimension of the bone contacting surface of the second femoral component to enable the bone contacting surface of the first femoral component and a bone contacting surface of the second femoral component to be positioned on one prepared femur.
20. The method of claim 19 , further comprising color-coding at least one of the first femoral component and packaging of the first femoral component to indicate the first femoral component is for implantation in a female patient.
21. The method of claim 19 , wherein at least one of the first femoral component and packaging of the first femoral component is color coded to indicate the first femoral component is for implantation in a female patient.
22. The method of claim 19 , wherein a bearing surface area of the second femoral component is greater than a bearing surface area of the first femoral component.
23. The method of claim 19 , wherein the first femoral component includes a lateral condyle portion having a thickness and the second femoral component includes a lateral condyle portion having a thickness and wherein the lateral condyle portion of the second femoral component is thicker than the lateral condyle portion of the first femoral component.
24. The method of claim 19 , wherein the prepared femur further comprises a distal portion of the femur that is cut to provide at least three implant contacting surfaces.
25. The method of claim 19 , further comprising:
providing a tibial component;
providing a cushioning material configured to couple to the tibial component and to correspond to the bearing surface of at least one of the first and second femoral components; and
providing a patella component configured to correspond to at least one of the first and second femoral components.
26. The method of claim 20 , wherein the first and second femoral components are configured to be implanted with bone cement.
27. The method of claim 19 , wherein the first and second femoral components include an ingrowth surface.
28. A system of femoral component implants, the system comprising:
a first series of femoral component implants, the first series of femoral component implants having a first sized implant and a second sized implant, each of the first and second sized implants including a maximum medial-lateral dimension and a bone contacting surface having a maximum anterior-posterior dimension; and
a second series of femoral component implants, the second series of femoral component implants having a first sized implant and a second sized implant that correspond to the first and second sized implants of the first series of femoral component implants, each of the first and second sized implants including a maximum medial-lateral dimension and a bone contacting surface having a maximum anterior-posterior dimension;
wherein the first sized implant of the first series has a smaller maximum medial-lateral width than the first sized implant of the second series,
wherein the first sized implant of the first and second series of femoral component implants are configured to be implanted on one prepared femur, such that the maximum anterior-posterior dimension of the bone contacting surface of the first sized implant of the first series is the same as the maximum anterior-posterior dimension of the bone contacting surface of the first sized implant of the second series.
29. The system of claim 28 , wherein the maximum medial-lateral width of the first sized implant of the first series is smaller than the maximum medial-lateral width of the first sized implant of the second series by about 5 percent or more.
30. The system of claim 28 , wherein the first and second series are configured and dimensioned to replace at least a portion of lateral and medial condyles of the knee.
31. The system of claim 28 , wherein each of the first sized implant of the first series and the first sized implant of the second series has a trochlear groove portion and wherein the trochlear groove portion of the first sized implant of the second series is wider than the trochlear groove portion of the first sized implant of the first series.
32. The system of claim 28 , wherein each of the first sized implant of the first series and the first sized implant of the second series has a lateral condyle portion and wherein the lateral condyle portion of the first sized implant of the second series is wider than the lateral condyle portion of the first sized implant of the first series.
33. The system of claim 28 , wherein each of the first sized implant of the first series and the first sized implant of the second series has a bearing surface area and wherein the bearing surface area of the first sized implant of the second series is greater than the bearing surface area of the first sized implant of the first series.
34. The system of claim 28 , wherein the first series is designed, configured, and dimensioned for female anatomy.
35. The system of claim 28 , wherein the prepared femur further comprises a distal portion of the femur that is cut to provide at least three implant contacting surfaces.
36. The system of claim 28 , further comprising:
a tibial component;
a cushioning material configured to couple to the tibial component and to correspond to the bearing surface of at least one of the first and second femoral components; and
a patella component configured to correspond to at least one of the first and second femoral components.
37. The system of claim 19 , wherein the first and second series of femoral component implants are configured to be implanted with bone cement.
38. The system of claim 28 , wherein the first and second femoral components include an ingrowth surface.