Prosthetic hip device and associated method
View Patent ↗A prosthetic device for replacement of a first pelvic portion of a pelvis of a patient opposite to a second pelvic portion relative to a median plane includes an acetabular component a flange component and a pubis component. The acetabular component has a first connecting portion and a second connecting portion at an angle relative to the first connecting portion, the angle selected for a corresponding anatomy of the patient. The flange component is coupled to the first connecting portion and configured to attach to a healthy pelvic portion on a same side of the median plane from the first pelvic portion. The pubis component is connected to the second connecting portion of the acetabular component and having a clamping portion configured to attach to a healthy pubis bone on an opposite side of the median plane from the first pelvic portion.
1. A prosthetic device for replacement of a first pelvic portion of a pelvis of a patient opposite to a second pelvic portion relative to a median plane comprising:
an acetabular component having a first connecting portion and a second connecting portion at an angle relative to the first connecting portion, the angle selected for a corresponding anatomy of the patient;
a flange component coupled to the first connecting portion and configured to attach to a healthy pelvic portion on a same side of the median plane from the first pelvic portion; and
a pubis component connected to the second connecting portion of the acetabular component, the pubis component having a first clamping portion and an opposed second clamping portion, wherein the opposed second clamping portion is configured to clamp a portion of a healthy pubis bone to the first clamping portion.
2. The prosthetic device of claim 1 , wherein the acetabular component is configured to connect with an acetabular implant.
3. The prosthetic device of claim 1 , wherein the acetabular component is configured to connect with a prosthetic femoral head.
4. The prosthetic device of claim 1 , wherein the acetabular component is configured to connect with a natural femoral head.
5. The prosthetic device of claim 1 , further comprising an acetabular cup configured to connect to the acetabular component.
6. The prosthetic device of claim 1 , wherein the acetabular component is fabricated from three-dimensional information obtained from imaging of the second pelvic portion.
7. The prosthetic device of claim 1 , wherein the first clamping portion includes an anchoring portion.
8. The prosthetic device of claim 1 , wherein the first clamping portion includes a hook.
9. The prosthetic device of claim 1 , wherein the first clamping portion is movable relative to the pubis component.
10. The prosthetic device of claim 9 , wherein the first clamping portion is spring-biased by a spring.
11. The prosthetic device of claim 10 , further comprising a worm drive adjusting biasing of the spring.
12. The prosthetic device of claim 1 , further comprising a taper connection between the acetabular component and the pubis component.
13. The prosthetic device of claim 1 , wherein the first connecting portion includes a bore for receiving a post from the flange component.
14. The prosthetic device of claim 1 , wherein the second connecting portion includes a bore for receiving a post from the pubis component.
15. The prosthetic device of claim 1 , wherein the median plane is a vertical longitudinal plane that divides the pelvis into substantially symmetrical halves.
16. A prosthetic device for replacement of a first pelvic portion of a pelvis of a patient opposite to a second pelvic portion relative to a median plane comprising:
an acetabular component having a first connecting portion and a second connecting portion at an angle relative to the first connecting portion, wherein the acetabular component is fabricated from three-dimensional information obtained from imaging of the second pelvic portion and the angle is selected for a corresponding anatomy of the patient;
a flange component coupled to the first connecting portion and configured to attach to a healthy pelvic portion on a same side of the median plane from the first pelvic portion; and
a pubis component connected to the second connecting portion of the acetabular component and having a first clamping portion and an opposed movable portion, wherein the movable portion is configured to clamp a portion of a healthy pubis bone to the first clamping portion and wherein the portion of the healthy pubis bone is clamped to the first clamping portion on an opposite side of the median plane from the first pelvic portion.
17. The prosthetic device of claim 16 , wherein the pubis component is fabricated from three-dimensional information obtained from imaging of the second pelvic portion.
18. The prosthetic device of claim 16 , wherein the first clamping portion is spring-biased by a spring.
19. A method of replacing a first pelvic portion of a pelvis of a patient opposite to a second pelvic portion relative to a median plane with a prosthetic device, the method comprising:
providing a prosthetic device constructed by imaging of the first and second pelvic portions;
resecting a part of the first pelvic portion such that connective tissues are still attached to a remainder of the first pelvic portion;
forming anatomical connection points on the prosthetic device to substantially match the remainder of the first pelvic portion;
connecting the prosthetic device to the remainder of the first pelvic portion at the connecting points; and
providing a first clamping portion and an opposed second clamping portion, wherein the opposed second clamping portion is configured to clamp a portion of a healthy pubis bone to the first clamping portion.
20. The method of claim 19 , further comprising coupling an acetabular cup to an acetabular component of the prosthetic device.
21. The method of claim 19 , further comprising attaching a flange of the prosthetic device to the first pelvic portion.