POLAR3^◊

Trusted technology.  Trusted performance.

The POLAR3^◊ total hip solution, powered by Smith & Nephew’s proprietary OXINIUM^◊ on XLPE technology, has the best survivorship figures of any total hip construct according to the world’s largest national joint registry.¹ Our proprietary OXINIUM^◊ heads and a highly cross-linked polyethylene (XLPE) liner, shown to have the best revision rate in four joint registries.^2-5

For outcomes that outperform and to get patients back to life’s important moments – the solution is clear.

References

1. National Joint Registry for England, Wales, Northern Ireland and the Isle of Man Annual Report 2020.
2. Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR). Hip, Knee & Shoulder Arthroplasty: 2020 Annual Report. Adelaide: AOA, 2020.
3. Peters RM, Van Steenbergen LN, Stevens M, Rijk PC, Bulstra SK, Zijlstra WP. The effect of bearing type on the outcome of total hip arthroplasty. Acta Orthop. 2018:89;163–169.
4. Atrey A, Ancarani C, Fitch D, Bordini B. Impact of bearing couple on long-term component survivorship for primary cementless total hip replacement in a large arthroplasty registry. Poster presented at: Canadian Orthopedic Association; June 20–23, 2018; Victoria, British Columbia, Canada.
5. Davis ET, Pagkalos J, Kopjar B. Bearing surface and survival of cementless and hybrid total hip arthroplasty in the National Joint Registry of England, Wales, Northern Ireland and the Isle of Man. JBJS OA. 2020;5:e0075.

Trusted technology

Every patient, every approach, every bearing (1,2)

The POLARSTEM Cementless Stem System is designed to facilitate easy implantation and improved patient outcomes, when compared to the class average of cementless total hip constructs (3).

[IMG1] 99.02% survivorship and only a 0.98% revision rate at 7 years, with excellent functional outcomes at 12 years after total hip replacement* (4).

With a 7A* ODEP (5) rating and a clinical heritage dating back to 2002, trusted technology strikes the balance of addressing contemporary issues in total hip arthroplasty to help patients return to an active lifestyle.

Designed to achieve outcomes that outperform

Stem

• The triple taper, self-locking stem is designed to distribute load transmission without abnormal peak loads (6,7).
• The reinforced proximal body design on the anterior/posterior planes provides excellent stability and the potential to reduce subsidence (8,9).
• The shortened stem with a narrow distal tip allows ease of implantation, regardless of surgical approach (10,11).

Structure

• Proximal grooves run perpendicular to the average load direction, potentially reducing stem subsidence (8,9).
• Distinct axial structure design for improved rotational stability (8,9).

Coating

• Featuring advanced surface roughness of Titanium Plasma spray with a HA coating (12).

Instrumentation – for any surgical approach

• Compaction teeth (anterior/posterior) and bone cutting teeth (medial lateral) for good cortical bone contact.
• Female connection pocket provides consistent free access for acetabular preparation, facilitating the ‘femur first’ technique (13).

Backed by clinical evidence

View more evidence and browse surgical resources here.

For further information on POLARSTEM, or to arrange a discussion with a Smith & Nephew representative: 
Contact us

[Product ordering information]

*502 THRs between 2002 and 2005 (502 patients with a mean age of 68.7 years) with the cementless POLARSTEM femoral component and the POLARCUP acetabular component.

References:

1)        Subject to the indications, contraindications, risk factors, intraoperative, postoperative and other guidance provided in the instructions for use and surgical technique brochure. Cementless and cemented stem options for different intramedullary anatomies and bone qualities (Surgical technique No. 01217, Instructions for use No. 12.23, X-Ray templates No. 2193, 2196, 2197, 03446, 03719, 05302 and technical report «Identification of the population for POLARSTEM» acc. to EN ISO 21534: 2009).

2)      Tested and approved with appropriately sized femoral head options offered by Smith & Nephew. Stainless steel (FeCrNiMoNbN) heads and stainless steel stems should only be used together. Neither should be used with other metal components. CoCr heads should not be combined with (cemented) stainless steel stems. (Instructions for use No. 12.23 and information No. 2174).

3)      National Joint Registry for England, Wales and Northern Ireland. Implant Summary Report for POLARSTEM, dated 16 May 2018.

4)      Cypres A, Fiquet A, Girardin P, et al. Excellent long-term outcomes of a triple taper femoral stem for cementless total hip replacement. Poster presented at: 2nd World Arthroplasty Congress; April 19-21, 2018; Rome, Italy.

5)      Orthopaedic Data Evaluation Panel (ODEP). Available at http://www.odep.org.uk. Accessed 23 August 2018.

6)      Clinical Evaluation Safety and Efficacy POLARSTEM. Smith & Nephew Internal, 2013, pages 17-19.

7)       Vidalain et al. Twenty-year results of the cementless Corail stem. International Orthopaedics (SICOT) (2011) 35: 189.

8)      Lee et al. Early Failure of the Polarstem Total Hip Arthroplasty—Can The Australian NJR Tell Us The Full Story? The Journal of Arthroplasty, Volume 29, Issue 3, 609 – 611.

9)      Cypres et al. Midterm POLARSTEM results. Bone Joint Science, 2012.

10)   https://doi.org/10.1007/s00264-010-1117-2.

11)     http://www.smith-nephew.com/education/resources/video/2014/january/polarstemdesign-rationale-and-mid-term-clinical-results/

12)   http://www.smith-ephew.com/education/resources/video/2014/january/the-advantages-of-polarstem-being-implanted-through-the-direct-anterior-approach/

13)   Zweymüller, KA. Bony Ongrowth on the Surface of HA-CoatedFemoral Implants. Zeitschrift fur Orthopadie und Unfallchirurgie [18 Oct 2011, 150(1):27-31] 2012.

http://www.smith-nephew.com/education/resources/video/2014/january/the-advantages-of-polarstem-being-implanted-through-the-direct-anterior-approach/

Trusted performance for joint stability

Clinical heritage meets modern design

The R3 Acetabular System offers flexible instrumentation and a wide range of advanced bearing options, successfully combining proven performance with innovative, modern design features that aim to optimise primary joint stability.

[IMG1] 98.9% implant survival rate and only a 1.1% revision rate demonstrated at a minimum 5-year follow-up* (1).

With a 10A* ODEP (2) rating and a clinical heritage dating back to 2009, our advanced STIKTITE™ porous coating delivers a high friction coefficient and excellent bony ingrowth for immediate fixation and primary stability (3,4).

Designed for instant stability and lasting performance

Cup stability with STIKTITE technology

• A true ‘scratch-feel’ fit for all bone types.
• Higher coefficient friction than trabecular metal (3).
• Optimal pore sizing for bony ingrowth, designed to offer more stability than other porous coatings (4).

Liner stability with double channel locking system 

• Suitable for multiple bearings, the highly cross-linked polyethylene (XLPE) liner offers exceptional stability without soft tissue entrapment (5).
• A deep-set, double channel lock promotes axial stability (5).
• Rotational stability through 12 anti-rotational tabs (5).

Backed by clinical evidence

View more evidence and browse surgical resources here.

For further information on R3, or to arrange a discussion with a Smith & Nephew representative:
Contact us

[Product ordering information]

*293 THAs with the R3 acetabular component. 97% (n=283) cementless THA with POLARSTEM femoral component, 3% (n=10) hybrid component.

References:

1)        Teoh KH, Whitham RDJ, Golding DM, Wong JF, Lee PYF, Evans AR. R3 cup does not have a high failure rate in conventional bearings: a minimum of 5-year follow-up. J Arthroplasty. 2018:33; 460–463.

2)      Orthopaedic Data Evaluation Panel (ODEP). Available at http://www.odep.org.uk. Accessed 23 August 2018

3)      Heiner et al. Frictional coefficients of a new bone ingrowth structure. Poster no. 1623 presented at: Orthopaedic Research Society Annual Meeting; Feb 11-14, 2007; San Diego, CA.

4)      Bourne et al. The next generation of acetabular shell design and bearing surfaces. Supplement to Orthopaedics Innovation in Total Hip Arthroplasty, pp. 92-96, December 2008.

5)      Smith & Nephew - Data on File.

Exclusive bearing technology for hips

Designed for wear performance and corrosion avoidance, to improve patient outcomes (1-4)

A proprietary construction of OXINIUM™ oxidized zirconium and highly cross-linked polyethylene (XLPE), offering a versatile bearing combination capable of avoiding ceramic-like fractures (5).

Having demonstrated the highest survivorship of all bearing couples for cementless total hip arthroplasty (THA), using VERILAST may positively impact long-term outcomes (6).

[IMG1] Revision rates in total hip arthroplasty using OXINIUM were just 2.5% and 3.5% at 5 years and 9 years respectively*(7).

[IMG2] 96.5% survivorship at 10 years and a 33% lower revision risk from 3 months, compared to other bearing types** (8).

Superior wear performance and clinical survivorship (1, 9-11)

With a clinical heritage dating back to 2004, OXINIUM incorporates a metal that undergoes transformation to create a ceramic surface with an unmodified core-metal substrate, highly resistant to fracture or peeling.

VERILAST Technology for THA has been laboratory tested for up to 45 million cycles against other bearing choices and has demonstrated superior clinical survivorship (1).

[IMG] – Comparison graph, Referenced- Parikh

Built to avoid corrosion (2-4) and improve patient outcomes 

The biocompatible oxidized zirconium in VERILAST has demonstrated reduced taper corrosion in total hip arthroplasty, minimising trunnionosis (2-4).

In a 22-year database, OXINIUM femoral heads demonstrated decreased corrosion damage compared to CoCr, with a complete absence of chromium-rich deposits (4).

[IMG – corrosion comparison – Referenced Cartner

Backed by clinical evidence

[IMG4] Patients who are intolerant of other bearing types may tolerate OXINIUM (12-14).

View more evidence and browse surgical resources here.

For further information on VERILAST, or to arrange a discussion with a Smith & Nephew representative:
Contact us

[Product ordering information]

*209,912 primary THAs with non-metal-on-metal implants registered in the Dutch Arthroplasty Register, 2007-2016, with a maximum 10-year follow-up. 6 most frequently employed bearing types compared: CoHXPLE n=70,715, CoPE n=40,109, MoPE n=37,351, MoHXLPE n=32,867, CoC n=17,625, OxHXLPE n=11,875.

**According to a 2018 report. 33% revision risk: ceramicised metal/XLPE vs metal/XLPE. 0-3 months: HR=1.10 (0.96, 1.27), p=0.150. 3 months+: HR: 0.67 (0.60, 0.76), p<0.001.

References:

1) Parikh et al. “Long-term simulator wear performance of an advanced bearing technology for THA,” Orthop Res Soc, San Antonio,TX, Jan 26-29, 2013, 1028.

2) Pawar et al. Acidic Fretting Tests of Oxidized Zr-2.5Nb, CoCr, and SS Femoral Heads, ASMI, 2004.

3) Li C, Parikh A, Sprague J, Pawar V. Mechanically assisted crevice corrosion on CoCrMo heads after long-term hip simulator wear testing. Poster 0270 presented at ORS Congress 2015. NV, USA.

4) Cartner, J et al. Characterization of Femoral Head Taper Corrosion Features Using a 22-year Retrieval Database.HSS Jrnl (2017) 13: 35. https://doi.org/10.1007/s11420-016-9517-5.

5) Hunter, G et al. Creation of Oxidized Zirconium Orthopaedic Implants. Journal of ASTM International, July/August 2005, Vol. 2, No. 7 Paper ID JAI12775.

6) Atrey A, Ancarani C, Fitch D, Bordini B. Impact of bearing couple on long-term component survivorship for primary cementless total hip replacement in a large arthroplasty registry. Poster presented at: Canadian Orthopedic Association; June 20-23, 2018; Victoria, British Columbia, Canada.

1)        Peters RM, Van Steenbergen LN, Stevens M, Rijk PC, Bulstra SK, Zijlstra WP. The effect of bearing type on the outcome of total hip arthroplasty. Acta Orthop. 2018:89; 163–169.

2)      Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR). Hip, Knee & Shoulder Arthroplasty, 2018 Annual Report. Adelaide, AOA, 2018. Accessed November 16, 2018. Available from https://aoanjrr.sahmri.com/annual-reports-2018

3)      Al-Khateeb H, Teeter M, Naudie D, McCalden RW. Oxidised zirconium versus cobalt-chromium in THA: analysis of retrieved acetubular liners. Orthopaedic Proceedings. 2016; 98-B:(Supp 1)14-14. Abstract only.

4)      Jassim S, Patel S, Wardle N, et al. Five-yearcomparison of wear using oxidised zirconium and cobalt–chrome femoral heads in total hip arthroplasty. Bone Joint J. 2015; 97:883-889.

5)      Papannagari R, Hines G, Sprague J. Long-term wear performance of an advanced bearing technology for TKA. Poster 1141

6)      Mihalko WM, Goodman SB,Amini M, Hallab N. Metal sensitivity testing and associated total joint outcomes. Poster presented at AAOS Biomedical Engineering and Biological Implants Committees, 2013.

7)       Caicedo M, Pawar V, Hallab N. Oxidized Zr-alloy particles induce a lower incidence of in vitro lymphocyte metal-sensitivity responses compared to cobalt and titanium implant alloys. Poster 0946 presented at ORS Congress 2014. LA, USA.

8)      Hallab NJ, McAllister K, Jacobs JJ, Pawar V. Zirconium-alloy and zirconium-oxide particles produce less toxicity and inflammatory cytokines than cobalt-alloy and titanium-alloy particles in vitro, in human osteoblasts, fibroblasts and macrophages. Poster 0971 presented at ORS Congress 2012. CA, USA.

9)        Al-Khateeb H, Teeter M, Naudie D, McCalden RW. Oxidised zirconium versus cobalt-chromium in THA: analysis of retrieved acetubular liners. Orthopaedic Proceedings. 2016; 98-B:(Supp 1)14-14. Abstract only.

10)      Jassim S, Patel S, Wardle N, et al. Five-yearcomparison of wear using oxidised zirconium and cobalt–chrome femoral heads in total hip arthroplasty. Bone Joint J. 2015; 97:883-889.

11)      Papannagari R, Hines G, Sprague J. Long-term wear performance of an advanced bearing technology for TKA. Poster 1141 presentedat ORS Congress 2011. CA, USA.

12)        Mihalko WM, Goodman SB,Amini M, Hallab N. Metal sensitivity testing and associated total joint outcomes. Poster presented at AAOS Biomedical Engineering and Biological Implants Committees, 2013.

13)      Caicedo M, Pawar V, Hallab N. Oxidized Zr-alloy particles induce a lower incidence of in vitro lymphocyte metal-sensitivity responses compared to cobalt and titanium implant alloys. Poster 0946 presented at ORS Congress 2014. LA, USA.

14)      Hallab NJ, McAllister K, Jacobs JJ, Pawar V. Zirconium-alloy and zirconium-oxide particles produce less toxicity and inflammatory cytokines than cobalt-alloy and titanium-alloy particles in vitro, in human osteoblasts, fibroblasts and macrophages. Poster 0971 presented at ORS Congress 2012. CA, USA.

Surgeon resources

Animation Video

06887_V2_Polarstem_15Y_Animation__2018__INTL_wmv_534928

Surgical technique guide

01217_en_V5_POLARSTEM_Surgical_Technique(1513)_A4_0917_LOW.pdf 

Design rationale

02135_en_V3_POLARSTEM_Product_Information_0718.pdf

Tray layout

Clinical Evidence

[IMG1] The POLAR3 Total Hip Solution is backed by a growing body of clinical evidence. View our Evidence in Focus collection (will link to EiF landing page when built)

For more resources, such as surgical techniques, webinars and expert discussion, join Education & Evidence