Zimmer® M/L Taper with Kinectiv™ Technology

Hip designed to fit the unique anatomies of women and men

Zimmer Gender Solutions™ Technology

The Zimmer M/L Taper Hip Prosthesis with Kinectiv Technology helps the surgeon address a wide range of bone morphologies. For example, women tend to have lower head centers, less offset and greater anteversion whereas men tend to have greater offset and less anteversion.1-8 These gender-specific tendencies are addressed by offering a broad range of head centers and progressively increasing version for the shorter offset head center locations.

Gender Differences

  • Females tend to have shorter offset and head height (leg length).2-5
  • Females tend to have greater femoral anteversion.1,3,6-8
  • Dislocation is up to 4x more common in women than men following total hip replacement.9,10
  • Combined femoral and acetabular anteversion suggested to be approximately 10° greater for female patients.6,7

Broad Range of Head Centers

  • Broad range of head centers better match the wide range of anatomies of men and women.
  • Low head center options allow fewer bone sacrificing neck cuts to address the varus neck anatomy commonly seen in the female population.

Progressive Version

  • Progressively increasing version for the shorter offset head center locations to better match the offset and version commonly seen in males and females.
  • Kinectiv Technology is designed to better accommodate the differences in total anteversion commonly seen between men and women for a natural fit and function.
  • Version designed to match patient anatomy and mitigate risks of impingement, third body wear and dislocation.

Related Articles

Overview
Zimmer Minimally Invasive Solutions Procedures
M/L Taper with Kinectiv Technology - Built on Proven Implant Philosophy
Design Considerations

References

  1. Maruyama M, Feinberg JR, Capello WN, D’Antonio JA. Morphologic features of the acetabulum and femur. Anteversion angle and implant positioning. Clinical Orthopaedics and Related Research. 2001;393:52-65.
  2. Noble PC, Box GG, Kamaric E, Fink MJ, Alexander JW, Tullos HS. The effect of aging on the shape of the proximal femur. Clinical Orthopaedics and Related Research. 1995;316:31-44.
  3. Data from Mohamed Mahfouz, PhD, University of TennesseeCenter for Musculoskeletal Research. Femoral Bone Atlas.
  4. Sugano N, Noble PC, Kamaric E. Predicting the position of the femoral head center. The Journal of Arthroplasty. 1999;14:102-107.
  5. Data on file at Zimmer.
  6. Dorr LD, Long WT, Inaba Y, Sirianni L and Boutary M. MIS total hip replacement with a single posterior approach. Seminars in Arthroplasty. 2005; 16: 179-185.
  7. Malik A, Maheshwari A, Dorr LD. Impingement with total hip replacement. The Journal of Bone and Joint Surgery Am. 2007;89:1832-1842.
  8. Duke Orthopaedics presents Wheeless’ Textbook of Orthopaedics. Femoral Anteversion. www.wheelessonline.com/ortho/femoral_anteversion.
  9. Morrey BF. Instability after total hip arthroplasty. Orthopedic Clinics of North America. 1992;23:237-248.
  10. Morrey BF. Difficult complications after hip joint replacement. Dislocation. Clinical Orthopaedics and Related Research. 1997;344:179-187.