ZMR® XL Revision

Extra Large Junction
Proximal support of the implant is desired in all femoral revision hip surgeries.  However, when the surgeon is unable to obtain proximal implant support, the ZMR XL Hip System should be considered. The ZMR XL Hip System was specifically designed to accommodate cases in which proximal support is not obtainable with the standard junction components*. However, as with any non-supported femoral stem, the patient would be warned of the increased risk of fatigue fracture of the stem even though a ZMR XL construct is used. 8

*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.  

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.
ZMR® Hip

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