Echo® Hip System

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The Echo Femoral Hip System offers a modern metaphyseal loading fit and fill design to address increasing hospital demands for both primary and fracture applications. Four stem options with various fixation modes address the distinct needs of each patient, while the customizable instrumentation platform provides enhanced surgical workflow.

The Echo Femoral Hip System offers four stem designs with a wide range of sizing options to best meet patient needs and accommodate various surgical approaches:

  • Echo Bi-Metric® stem provides clinically proven1-5 proximal porous fixation in a traditional fit and fill design
  • Echo Bi-Metric Microplasty® stem allows for proximal porous fixation in a fit and fill design to conserve bone and accommodate minimally invasive surgical approaches
  • Echo FX™ stem showcases a versatile design for cementless or cemented application in the treatment of fractures or total hip arthroplasty
  • Echo PF stem is designed for cementless application in the treatment of fractures or total hip arthroplasty

Product Features

The Echo Bi-Metric stem is a metaphyseal loading, fit and fill primary hip prosthesis with PPS® coating that promotes porous proximal fixation. The stem builds upon the heritage of the clinically proven Integral® and Bi-Metric® hip stems 1-3 while integrating new design features to better meet patient needs. Key design features include:

  • Clinically Proven PPS coating applied to the proximal portion of the stem allows for initial scratch-fit stability and long-term biological fixation 9,10
  • 3 Degree Bi-planar Taper provides physiological proximal load transfer and optimal implant-to-patient fit 6,8
  • Full and Reduced Proximal Profile Options accommodate a wide range of femoral canals, such as Dorr type C femurs
  • Titanium Alloy Substrate allows for stress transfer to preserve cortical density 6,7
  • Sizing Options: 7-21 (1 mm increments) accommodate varying anatomies
  • Standard (135°) and High (130°) Offsets allow for intraoperative adjustment without lengthening the leg
  • Medialized Insertion Hole offers ease of insertion

The Echo Bi-Metric Microplasty Stem is a metaphyseal loading, fit and fill femoral prosthesis with a simple, broach only surgical technique. The Echo Bi-Metric Microplasty stem is approximately 30% shorter than the Echo Bi-Metric full-length stem to conserve bone and accommodate minimally invasive surgical approaches. Key features include:

  • Short Stem Length is optimal for minimally invasive surgical approaches and reduces the need to multiple proximal profile options
  • Clinically Proven PPS coating applied to the proximal portion of the stem allows for initial scratch-fit stability and long-term biological fixation 9,10
  • 3 Degree Bi-planar Taper provides physiological proximal load transfer and optimal implant-to-patient fit 6,8
  • Titanium Alloy Substrate allows for stress transfer to preserve cortical density 6,7
  • Sizing Options: 7 mm – 21 mm ( 1 mm increments) with 2 reduced proximal profile sizing options to accommodate varying anatomies
  • Standard (135°) and High (130°) Offsets allow for intraoperative adjustment without lengthening the leg
  • Polished Bullet-shaped Distal Tip provides a gradual separation from the cortex to reduce distal stresses

The Echo FX stem femoral component is a cobalt chrome substrate with an Interlok® surface finish, allowing for cemented or press-fit application. Modern design features are included to provide a versatile, dual-purpose implant option for the hip fracture market. Key features include:

  • Fit and Fill Geometry designed to fill the metaphysis to enhance rotational stability
  • Roughened Interlok Finish promotes secure bone on-growth fixation
  • Collared Neck transfers stress to the calcar region and reduces subsidence
  • Standard (135°) and High (130°) Offset to allow for intraoperative adjustment without lengthening the leg
  • Reduced Proximal Profile provides optimal fit for Type C or stove pipe canal often associated with elderly hip fracture patients
  • Sizing Options: Offered in 2 mm increments ranging from 7 mm - 17 mm
  • PMMA Distal Stem Positioner provides for a consistent cement mantle; distal centralizers available in 1 mm increments

 

The Echo PF (Press Fit) femoral component is a titanium alloy, press-fit stem with an Interlok finish and anterior/posterior (A/P) metaphyseal fins. It is specifically designed for surgeons who prefer to perform hemiarthroplasty or total hip arthroplasty operations while avoiding bone cement. The Interlok surface promotes secure bone on-growth fixation, while the metaphyseal fins allow for additional rotational stability and fixation. Key features include:

  • Fit and Fill Geometry designed to fill the metaphysis to enhance rotational stability
  • Roughened Interlok Finish promotes secure bone on-growth fixation
  • Reduced Proximal Profile provides optimal fit for Type C or stove pipe canal often associated with elderly hip fracture patients
  • Sizing Options: Offered in 1 mm increments ranging from 7 mm - 17 mm
  • Press-fit Application implant is oversized 1.2 mm relative to the broach in the A/P region to accommodate a true press-fit
  • Titanium Alloy Substrate allows for stress transfer to preserve cortical density 6,7
  • A/P Metaphyseal Fins protrude 1 mm to provide additional rotational stability and fixation
  • Neck Angle available in standard (135°) offset 

Clinically Proven Heritage

The Echo Bi-Metric and Microplasty stems are built upon the heritage of two clinically proven implants: the Integral® and Bi-Metric femoral components. Backed by over 20 years of clinical success,1-3 the Echo Bi-Metric and Microplasty stems enhance existing features of each offering and provide additional benefits to better meet patient needs.

  • 100% Survivorship at 7 years1 – Echo Bi-Metric Femoral Stem
  • 98% Survivorship at 12 years4 – Integral Femoral Stem
  • 100% Survivorship at 20 years5– Bi-Metric Femoral Stem

Technology

  • PPS® Porous Plasma Spray

 

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References

  1. Sueyoshi, T. et al. Changes in Femoral Stem Geometry Reduce Intraoperative Femoral Fracture Rates in Total Hip Replacement. Journal of Orthopedics. (5):115-9, 2015.
  2. Marshall, A. et al. Cementless Titanium Tapered-Wedge Femoral Stem 10- to 15-Year Follow-up. Journal of Arthroplasty. 19(5), 2004.
  3. Meding, J. et al. Twenty-year Follow-up of an Uncemented Stem in Primary THA. Clinical Orthopaedics and Related Research. (473):543-8, 2014.
  4. Marshall, A.D. et al. Cementless titanium tapered-wedge femoral stem – 10 to 15-year follow-up. Journal of Arthroplasty. 19(5): 546 – 52, 2004.
  5. Meding, J. et al. Minimum ten-year follow-up of a straight-stemmed, plasma-sprayed, titanium-alloy, uncemented femoral component in primary total hip arthroplasty. Journal of Bone and Joint Surgery. 86:9207, 2004.
  6. Romagnoli, S. Press-fit Hip Arthroplasty: A European Alternative. Journal of Arthroplasty. 17(4):108–12, 2002.
  7. Head, W. et al. Titanium as the Material of Choice for Cementless Femoral Components in Total Hip Arthroplasty. Clinical Orthopaedics and Related Research. (311):85–90, 1995.
  8. Rothman, R. et al. Primary Total Hip Arthroplasty with an Uncemented Femoral Component. A Long-Term Study of the Taperloc Stem. Journal of Arthroplasty. 19(2): 151–6, 2004.
  9. McLaughlin, J. et al. Total Hip Arthroplasty with an Uncemented Tapered Femoral Component. Journal of Bone and Joint Surgery.6(90):1290–6, 2008.
  10. Rothman, R. et al. Immediate Weight Bearing after Uncemented Total Hip Arthroplasty. Clinical Orthopedics and Related Research. 349:156–62, 1998.
  11. Head, William C. et al. A Titanium Cementless Calcar Replacement Prosthesis in Revision Surgery of the Femur: 13-Year Experience. Journal of Arthroplasty. 16(8): 183-87, 2001.
  12. Head, William C. et al. The Proximal Porous Coating Alternative for Primary Total Hip Arthroplasty. Orthopedics 22(9): 813-15, 1999.
  13. Bourne, Robert B. et al. Ingrowth Surfaces: Plasma Spray Coating to Titanium Alloy Hip Replacements. Clincal Orthopaedics and Related Research. 298: 37-46, 1994.

 

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