ZMR® Hip System
Modular Design
Outstanding Intraoperative Flexibility
The ZMR Hip System is designed to provide exceptional intraoperative flexibility to meet the unpredictable demands of revision hip arthroplasty. The modular mid-stem junction allows the selection of a distal stem design independent of the proximal body design. This accommodates a wide variety of bone conditions that are often not revealed until the time of surgery. Some implants (ZMR XL options) are available with an extra large junction for patients whose bone may not provide adequate proximal support* with the standard junction components.
*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
| Spout | Calcar | Cone |
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Stem Options
| Spline | Porous | Taper |
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XL Junction
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Version
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The cone proximal body can be placed in any position relative to the distal stem to address various anatomic distortions that may be encountered. ZMR Bodies are designed to provide an opportunity for version adjustment. |
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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.
