Disclosed herein are systems and methods for bone preparation with designed areas having accurate tolerance profiles to enable improved initial fixation and stability for cementless implants and to improve long-term bone ingrowth/ongrowth to an implant. A method of preparing a bone surface to receive a prosthetic implant thereon having an articular surface and a bone contacting surface includes resecting the bone surface at a first location to create a first resected region having a first tolerance profile with a first cross-section, resecting the bone surface at a second location to create a second resected region having a second tolerance profile with a second cross-section less dense than the first cross-section, and contacting the bone contacting surface of the prosthetic implant with the first resected region.
1. A method of preparing a bone surface to receive a prosthetic implant thereon, the prosthetic implant having an articular surface and a bone contacting surface, the method comprising:
resecting the bone surface at a first location to create a first resected region having a first tolerance profile with a first cross-section having peaks and valleys;
resecting the bone surface at a second location to create a second resected region having a second tolerance profile with a second cross-section less dense than the first cross-section such that the second cross-section has peaks further apart and valleys deeper than the peaks and valleys of the first cross-section; and
contacting the bone contacting surface of the prosthetic implant with the first resected region.
2. The method of claim 1 , further comprising:
forming at least one recess in the bone surface prior to implanting the prosthetic implant on the bone surface; and
inserting a retention element extending from the bone contacting surface in the at least one recess in the bone surface.
3. The method of claim 2 , including applying downward force to the articular surface of the prosthetic implant to compact bone in the first resected region.
4. The method of claim 1 , further comprising:
resecting the bone surface at a plurality of locations to create a plurality of resected regions each having a tolerance profile with a cross-section, wherein the tolerance profile of each of the plurality of resected regions is denser than the cross-section of the second tolerance profile.
5. The method of claim 4 , wherein the tolerance profile of the second resected region is ±0.010 inches and the tolerance profile of the plurality of resected regions is ±0.025 inches.
6. The method of claim 4 , wherein a first of the plurality of resected regions is located at an anterior aspect of the bone surface.
7. The method of claim 6 , wherein a second of the plurality of resected regions is located at an outer aspect of the bone surface.
8. The method of claim 7 , wherein a third of the plurality of resected regions is located at a posterior aspect of the bone surface.
9. The method of claim 8 , wherein the cross-section of the tolerance profile of the first of the plurality of resected regions is less dense than the cross-section of the tolerance profile of the second of the plurality of resected regions and is more dense than the cross-section of the tolerance profile of the third of the plurality of resected regions.
10. A method of preparing a bone surface to receive a prosthetic implant thereon, the prosthetic implant having an articular surface and a bone contacting surface, the method comprising:
resecting the bone surface at an anterior aspect thereof to create a first resected region having a first tolerance profile with a first cross-section having peaks and valleys;
resecting the bone surface at a posterior aspect thereof to create a second resected region having a second tolerance profile with a second cross-section having peaks further apart and valleys deeper than the peaks and valleys of the first cross-section such that the first cross-section is denser than the second cross-section; and
contacting the bone contacting surface of the prosthetic implant with the first resected region.
11. The method of claim 10 , further comprising:
forming at least one recess in the bone surface prior to implanting the prosthetic implant on the bone surface; and
inserting a retention element extending from the bone contacting surface in the at least one recess in the bone surface.
12. The method of claim 11 , including applying downward force to the articular surface of the prosthetic implant to compact bone in the first resected region.
13. The method of claim 10 , further comprising:
resecting the bone surface at a plurality of locations to create a plurality of resected regions each having a tolerance profile with a cross-section, wherein the tolerance profile of each of the plurality of resected regions is denser that the cross-section of the second tolerance profile.
14. The method of claim 13 , wherein the tolerance profile of the second resected region is ±0.010 inches and the tolerance profile of the plurality of resected regions is ±0.025 inches.
15. A method of preparing a bone surface to receive a prosthetic implant thereon, the prosthetic implant having an articular surface and a bone contacting surface, the method comprising:
resecting the bone surface at a peripheral region thereof to create a first resected region having a first tolerance profile with a first cross-section having peaks and valleys;
resecting the bone surface at an anterior region thereof to create a second resected region having a second tolerance profile with a second cross-section having peaks further apart and valleys deeper than the peaks and valleys of the first cross-section such that the first cross-section is denser than the second cross-section; and
contacting the bone contacting surface of the prosthetic implant with the first resected region.
16. The method of claim 15 , further comprising:
forming at least one recess in the bone surface prior to implanting the prosthetic implant on the bone surface; and
inserting a retention element extending from the bone contacting surface in the at least one recess in the bone surface.
17. The method of claim 16 , including applying downward force to the articular surface of the prosthetic implant to compact bone in the first resected region.
18. The method of claim 15 , further comprising:
resecting the bone surface at a plurality of locations to create a plurality of resected regions each having a tolerance profile with a cross-section, wherein the tolerance profile of each of the plurality of resected regions is denser than the cross-section of the second tolerance profile.
19. The method of claim 18 , wherein the tolerance profile of the second resected region is ±0.010 inches and the tolerance profile of the plurality of resected regions is ±0.025 inches.