ZMR® Hip System Taper Revision

Secure Distal Fixation

The ZMR Taper Revision Hip Prosthesis is designed to achieve secure distal fixation* in the femur using a sharply splined and tapered distal stem with a roughened Tivanium® Alloy surface.  The tapered distal stem is designed to wedge into the femoral medullary canal, transferring axial and bending forces, while the splines are press-fit into bone to provide rotational stability. The roughened Tivanium Alloy surface allows bone ongrowth. 3-5 The modular proximal bodies and distal stems provide many sizing options to help achieve anatomic restoration.

 *For femurs with inadequate proximal support, the ZMR XL Hip System should be used in combination with proximal allograft struts or other adjunctive reinforcement techniques.

Body Options

Porous plasma sprayed bodies are designed for biological fixation.

References

1. Emerson RH, Sanders SB, Head WC, et al. Effect of circumferential plasma-spray porous coating on the femoral osteolysis after total hip arthoplasty. J Bone Joint Surg. 1999;81-A;9:1291-1298.

2. Bourne RB, Rorabeck CH, Burkart BC, et al. Ingrowth surfaces – plasma spray coating to titanium alloy hip replacements. Clin Orthop. 1994;298:37-46.

3. Feighan JE, Goldberg VM, Davy D, et al. The influence of surfaceblasting in the incorporation of titanium-alloy implants in a rabbit intramedullary model. J Bone Joint Surg. 1995;77-A;9:1380-1395.

4. Zweymuller KA, Lintner FK, Semlitsch MF. Biologic fixation of a press-fit titanium hip joint endoprosthesis. Clin Orthop. 1988;235:195-206.

5. Lintner F, Zweymuller, Brand G. Tissue reactions to titanium endoprosthesis. J Arthroplasty. 1986;1;3:183-195.

6. Michelinakis E, Papapolychroniou T, Vafiadis J. The use of a cementless femoral component for the management of bone loss in revision hip arthroplasty. Hosp for Joint Diseases. 1996;55;1:28-32.

7. Hartwig CH, Bohm P, Czech U, et al. The Wagner revision stem in alloarthroplasty of the hip. Arch Orthrop Trauma Surg. 1996;115:5-9.

8. Crowninshield RD, Maloney WJ, Wentz DH, et al. The role of proximal femoral support in stress development within hip prostheses. Clin Orthop . In press 2004;4(10).

9. Data on file at Zimmer, Inc.