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Advita Ortho Hip Femoral Stems

Hip Femoral Stems

Advita’s versatile portfolio of primary and revision femoral stems designed for every stage of total hip arthroplasty.

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Overview
Features & Benefits
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Versatile Portfolio

Through the Alteon® and Spartan® Femoral Stems, Advita offers a full-range of implant designs engineered for specific bone types and surgical approaches.

Hip Femoral Stems Features and Benefits

Alteon Tapered Wedge Primary Femoral Stems

The Alteon® Tapered Wedge Femoral Stems incorporate specific design features intended to achieve immediate axial and rotational mechanical stability between the medial and lateral cortices of the femoral canal.

The Alteon® Tapered Wedge Femoral Stem is a press-fit implant designed to provide immediate axial and rotational stability across all primary femur types, including Dorr A, B, and C. With optimized proximal/distal geometry, incremental sizing, and a shorter stem option to designed to reduce distal potting, it offers surgeons greater flexibility without compromising technique. Paired with the streamlined instrumentation, this system supports efficient workflows and precise fit for a wide range of patients.

Advita Ortho Hip Alteon Tapered Wedge Primary Femoral Stems
Intuitive

Optimized overall length and proximal/distal sizing designed to achieve fixation in all primary femur types (Dorr A,B,C) without compromising implant features or surgical technique.1

Stable

Medial/lateral filling implant with a pronounced lateral flare geometry is designed to evenly distribute the load in the proximal femur and provide initial mechanical stability.2

Versatile

Four neck length groupings and an array of stem sizes/offsets provide multiple options to restore patient anatomy without the need for modularity.

Alteon® HA Femoral Stem

The design philosophy of the Alteon® HA Femoral Stem evolved from more than 25 years of clinical use. It features incremental stem sizing, proportional neck geometry, and reduced stem lengths, yet adheres to the core design principles of the philosophy.1 This system is designed to be bone conserving, while providing initial stability in an uncemented prosthesis.10 Surgeons are afforded a simple broach-only technique that offers flexibility to accommodate various surgical approaches.

Advita Ortho Alteon® HA Femoral Stem
Advita Ortho Alteon HA Femoral Stem neck length groupings
Clinical Lineage

Alteon HA is a fully hydroxyapatite-coated prosthesis, and is based on a clinically proven stem design with more than 20 years of clinical performance.1-8

Incremental Sizing

Neck: Four neck length groupings and two offsets provide multiple options to restore patient anatomy without the need for
neck modularity.

Stem: Intentionally grows at a smaller rate medially to laterally when compared to other stems. This proportional growth of the
implant body addresses a wide variety of patient anatomies.9,10

Scope

Standard Offset Collared and Collarless Sizes 1-15*

Extended Offset Collared and Collarless Sizes 2-15*

*Sizes 14 and 15 are by special order only.

Reduced Overall Length

Overall stem lengths are reduced up to 25 percent versus competitive designs in order to preserve more bone and accommodate a variety of surgical approaches.10

Platform Instrumentation

Integrated into the Alteon platform hip instrumentation which can be used with multiple stems:

  • Tapered Wedge Stem
  • Short Tapered Wedge Stem
  • Monobloc Revision Stem

Alteon® Highly Polished Primary Femoral Stem

The Alteon Highly Polished Stem is a highly polished cobalt chrome cemented stem which fits within the Alteon HA broach cavity. The highly polished surface of this stem is designed to reduce the amount of wear particles.1,2 This stem also features incremental stem sizing, proportional neck geometry, and uses all of the Alteon platform instrumentation.

Alteon Highly Polished Hip Stem. The Alteon Highly Polished Stem is a highly polished cobalt chrome cemented stem which fits within the Alteon HA broach cavity.
French Paradox Cement Technique

The Highly Polished stem is used in conjunction with a thin cement mantle which provides direct cortical bone contact in some areas. This type of technique allows for a canal filling implant to be used and is designed to transfer the load from the stem to the bone.3

Incremental Sizing

Neck: Four neck length groupings and two offsets provide multiple options to restore patient anatomy without the need for neck modularity.

Stem: Intentionally grows at a smaller rate medially to laterally when compared to other stems. This proportional growth of the implant body addresses a wide variety of patient anatomies.4

Scope

Standard Offset Sizes: 4, 6, 8, 10, 12

Extended Offset Sizes: 4, 6, 8, 10, 12

Platform Instrumentation

Integrated into the Alteon platform hip instrumentation which can be used with multiple stems:

  • Tapered Wedge Stem
  • Short Tapered Wedge Stem
  • Monobloc Revision Stem

Alteon® Monobloc Revision Femoral Stem

The Alteon Monobloc Revision Femoral Stem incorporates specific philosophies designed to improve surgical experiences and clinical outcomes. The Monobloc Revision Femoral Stem intends to achieve axial and rotational mechanical stability and operative predictability through a carefully engineered combination of design features.

Axial Stability of Different Taper Angles

x-axis: Spine Angle (Deg)  /  y-axis: Axial Resistance (N/mm)

Alteon® Monobloc Revision Femoral Stem taper angle and flat/broad spline geometry
Advita Hip Revision Femoral Alteon Monobloc Center Rotation Grooves

Center of Rotation Grooves

Tapered Reamer Referencing Guide

Advita Hip Revision Femoral Alteon Monobloc Trochanteric Reaming

Trochanteric Reaming

Advita Hip Revision Femoral Alteon Monobloc Trial Placement

Trial Stem Placement

Design

The 3.5 degree taper angle and flat/broad spline geometry play an integral part in the mechanical stability that is designed to resist axial subsidence and rotation.1

Scope

Sizes/diameters: 14-24, 26, 28 and 30mm
Lengths: 195, 245 & 295mm (Center of rotation to distal tip)

Predictability

The surgical technique and instrumentation are designed to create a predictable relationship between the reamer, trial and implant locations. The result is a system with the potential for immediate and long-term center of rotation reliability and stability.

Streamlined Instrumentation

The surgical technique and instrumentation are designed to create a predictable relationship between the reamer, trial and implant locations. The result is a system with the potential for immediate and long-term center of rotation reliability and stability.

Spartan Hip Stem

The Spartan and Logical System is a comprehensive total hip arthroplasty system engineered for reproducibility, performance and efficiency. Featuring incremental stem sizing, proportional neck geometry, and reduced stem lengths.

Advita Ortho's Spartan and Logical System is a comprehensive total hip arthroplasty system engineered for reproducibility, performance and efficiency.
Plasma Spray

Computer-controlled plasma spray surface treatment featuring hydroxyapatite.

Stress-offloading

Proximal steps engineered for compressive implant-to bone energy transfer.

Polished and Anodized

distal segment with distinctive biplanar taper.

Short Design

Available in 81mm for smaller anatomies.

Cementless

triple taper, friction-fit geometry.

Speed and Efficiency
  • Distinct color matching between instruments, implants and implant packaging
  • ASC-friendly, single-instrument tray
Polished Collar

featuring a coated underside is intended to enhance axial and rotational stability.

Distinctive Advantages
  • Appropriate for a variety of surgical approaches.
  • Proprietary femoral broach design.

Hip Femoral Stem Resources

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Tapered Wedge:

  1. Data available upon request. TR-2013-039. Wedge Femoral Stem Template Study Report.
  2. Leali A, Fetto J, Insler H, Elfenbein D. The effect of a lateral flare feature on implant stability. Int. Orthop. 2002;26(3):166-9.

Alteon HA:

  1. Vidalain JP. Twenty-year results of the cementless Corail stem. Int Orthop. 2011 Feb;35(2):189-94.
  2. Hallan, G, Lie SA, Furnes O, Engesaeter LB, Vollset SE, Havelin LI. Medium and long term performance of 11516 uncemented femoral primary stems from the Norwegian arthroplasty register. J Bone Joint Surg [Br] 2007 Dec;89(12):1574-80
  3. Havelin LI, Espehaug B, Vollset SE, Engesaeter LB. Early aseptic loosening of uncemented femoral components in primary total hip replacement. A review based on the Norwegian Arthroplasty Register. J Bone Joint Surg Br. 1995 Jan;77(1):11-7. Erratum in: J Bone Joint Surg Br 1995 Nov;77(6):985.
  4. Hardy DC, Frayssinet P, Guilhem A, Lafontaine MA, Delince PE. Bonding of hydroxyapatite-coated femoral prostheses. Histopathology of specimens from four cases. J Bone Joint Surg Br. 1991 Sep;73(5):732-40.
  5. Rokkum M, Brandt M, Bye K, Hetland KR, Waage S, Reigstad A. Polyethylene wear, osteolysis and acetabular loosening with an HA-coated hip prosthesis. A follow-up of 94 consecutive arthroplasties. J Bone Joint Surg Br. 1999 Jul;81(4):582-9.
  6. Froimson M, Garino J. Minimum 10-Year Results of a Tapered, Titanium, Hydroxyapatite Coated Hip Stem: An Independent Review. J. Arthroplasty. 2007;22:17.
  7. Reikeras O et al.: 0% Aseptic Loosening at 12 years. Acta Orthop Scand, 2004
  8. MA Jun; HUANG Ze-yu; SHEN Bin; YANG Jing; ZHOU Zong-ke; KANG Peng-de; PEI Fu-xing. Effects of prosthesis of fixed neck length on the lower limb lengthening of Chinese people after the THA; Chinese Journal of Bone and Joint Surgery, 2013-05
  9. Data available upon request.
  10. Data available upon request. TM-2017-0944.

Highly Polished:

  1. Janssen D, van Aken J, Scheerlinck T, Verdonschot N. Finite element analysis of the effect of cementing concepts on implant stability and cement fatigue failure. Acta Orthop. 2009 Jun;80(3):319-24.
  2. Clauss M, Gersbach S, Butscher A, Ilchmann T. Risk factors for aseptic loosening of Müller-type straight stems: a registry-based analysis of 828 consecutive cases with a minimum follow-up of 16 years. Acta Orthop. 2013 Aug;84(4):353-9. doi: 10.3109/17453674.2013.810517. Epub 2013 Jun 25.
  3. Langlais F, Kerboull M, Sedel L, Ling R. S. M. The ‘French Paradox.’ J Bone Joint Surg (Br). 2003 Jan; Vol85-B. No. 1. 17-20.
  4. Data available upon request at Advita.

Monobloc:

  1. Pierson J, Small S, Rodriguez J, Kang M, Glassman A. The Effect of Taper Angle and Spline Geometry on the Initial Stability of Tapered, Splined Modular Titanium Stems. J Arthroplasty. 2015 Jul;30(7):1254-9.

*Laboratory test results may not necessarily be indicative of clinical performance.

Spartan:
The Spartan Stem and Logical Cup are manufactured by Signature Orthopedics and distributed by Advita Ortho.

These products are manufactured by Exactech, Inc. and distributed by Advita Ortho, LLC.