stanmore Cemented Stem - Biomet Uk · 2 Stanmore Cemented Hip Stem Proven Design Principle Standard...
Transcript of stanmore Cemented Stem - Biomet Uk · 2 Stanmore Cemented Hip Stem Proven Design Principle Standard...
Stanmore Cemented Stem
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Stanmore Cemented Hip Stem30 Years of Clinical Success
The Stanmore hip was designed by Professor
John Scales, OBE, and Mr John Wilson, OBE.
The first stem was implanted in 1973 following its
development at the Royal National Orthopaedic
Hospital, Stanmore, England, and the Institute
of Orthopaedics, University of London. Since
1987 over 98,700 stems have been implanted
worldwide.1
Clinical Success of the Stanmore Hip Stem
91% Survivorship at 22 years follow-up in 135 patients2
73% Survivorship at 20 years, in 807 patients3
86% Survivorship at 14 years vs. 79% survivorship for the Charnley stem4
97.5% Survivorship at 10 year follow-up in 636 patients5
89.9% Survivorship at 10 year follow-up, in 105 patients6
90% Survivorship at 10 year follow-up in 57 young patients with a mean age of 41 years old
99% Survivorship at 5 year follow-up, in 97 patients7
98.2% Survivorship at 5 year follow-up, in 249 patients8
98% Survivorship at 5 year follow-up, in 2938 patients9
No revisions Revisions of failed neck of femur treatments in 31 patients: No stem revisions, 94% Merle d’Aubigne score.10
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Stanmore Cemented Hip StemProven Design Principle
Standard and Lateralised Neck Angles
Enhanced soft tissue tension and joint stability can be achieved by exchanging the 130° standard stem with the lateralised 125° stem
Collared Stem
The collar prevents subsidence to attain strong fixation of the implant to the cement
Straight and Standard Stem geometry
The horizontal offsets range from 33.5 mm to 48.5 mm to successfully restore the hip biomechanics
Type One Biomet Taper
The taper allows for use with an array of CoCr and Delta ceramic heads, up to 40 mm diameter, to benefit the joint stability and patient range of motion
The Stanmore femoral stem is a trusted device
with excellent long-term clinical success for over
30 years. The Stanmore stem geometry and
surface finish have remained unchanged, building
clinical longevity to become a gauge of lasting
improvement in patients’ life.11
Acetabular Options
Exceed ABT with Biolox Delta ceramic and 15° shell
• Improvedwearresistanceandmechanical strength compared to alumina ceramic
• IncreaseddiametersforanimprovedROM and stability
• 15°shelloptionallowsformorecupcoverage in dysplastic anatomies and optimal bearing inclination19
• TheclinicallyprovenPPScoatingmaximises long term implant fixation20,21
• BoneMastercoatingenhancesearlyimplant stability22
• 5AODEPRating
Exceed ABT with E1 Antioxidant Infused Technology
• Utilisesthedurableandclinicallyproven RingLoc technology23
• Ultralowwearversusstandardpolyethylene18
• Oxidativestabilityandhighstrengh18
• Rangeoflinertypesandsizestobetter address clinical needs:
– Standard, Hi-Wall and 10 Degree
– 22, 28, 32, 36 and 40 mm liners
• 5AODEPRating
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Stanmore Cemented Hip Stem
Satin Surface Finish
The wet blasted surface treatment creates a smooth sating finish (0.75Ra), optimal for mechanical bonding between the implant and the bone cement
Rectangular Cross-Section
The stem cross-section enhances the implant rotational stability in the femur
Tapered Stem Geometry
The 4.5° M/L and 1.4° A/P angle facilitate the stem insertion in the cement
CoCrMo Alloy
The high stiffness of the material decreases the risks of cement stresses.The high strength of the alloy reduces the risk of prosthetic fractures compared to stainless steel stems
Avantage E1
• Largeheadandanatomicallyshapedcup for a reduced risk of dislocation11
• LargeROM12
• Wearreducedby90%comparedtotraditional ArCom13
• Clinicallyprovendoublemobilitydesign14,15
• 10BODEPRating
E1 Cemented cups
• AvailableinE1andArComtoaccommodate the patient activity level
• Flanged,non-flangedandMullervariants to accommodate surgical technique preferences
• Largeheadoptionsforincreasedstability and ROM
• All-in-onepusherandinserterforcontinuous pressurisation
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Stanmore Cemented Hip StemFromPrimarytoRevision
In addition to the standard and lateralised primary
stems, Stanmore combines an unsurpassed
primary system with a proven revision technique.
The revision stems range from 196 to 214 mm
(measurements from the calcar), and have the
same proximal geometry as the standard and
straight primary stems. Amongst other applications,
it can be selected in the management of Paprosky
type one revision surgery.
Optipac Mixing System
World leading patented mixing system and cement accessories
• Providesmixingandcollectionundervacuumforoptimalporosityreduction
• Allingredientscomepre-packedinthemixingsystem,whichremainscloseduntil cement delivery
• Offersfurtherporosityreductionresultinginimprovedcementquality
• Reducedexposuretothecementcomponentsforabetterworkingenvironment16,17
• Cementdeliveryandpressurizationsystems,allowsforadequatecementfilling and improved cement penetration into the bone
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Stanmore Cemented Hip StemModern Instrument platform
Biomet is the only orthopaedic company that offers a 10 year limited warranty on specific products, in particular on the Stanmore stem. The Warranty procedure is simple, quick, with minimal paperwork, allowing Biomet Clinical Research Department to rapidly initiate the warranty for revision cases. Should warranted implants require revision within 10 years after the implantation date, Biomet will provide a free of charge replacement implant for the revision operation.
The instrumentation enables a reproducible and
easy technique, allowing optimal restoration of the
joint biomechanics and reduced pain.
10 Year Warranty Programme – When confidence is Key
The 10 year limited warranty is not offered in every country. Please contact your local Biomet Clinical Research Department for more information about the Warranty Programme and its availability in your country.
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References 1. Biomet recorded sales data from 1987.
2. Gerritsma-Bleeker CL et al. The Stanmore total hip replacement. A22yearFollowup.JBoneJointSurg.Br2000;82(1):97–102.
3.EmeryDFGetal.TheStanmoretotalhiparthroplasty.A15to20yearfollowupstudy.JofArth.1997Oct;Vol12No7:728-35.
4. Britton AR et al. Long-term comparison of Charnley and Stanmore design total hip replacements. J Bone Joint Surg. Br. 1996;78(5):802-8.
5. Swedish Hip Register 2009 Annual Report Stanmore modular stem / Stanmore cup
6. Swedish Hip Register 2009 Annual Report Stanmore Monobloc stem / Stanmore cup
7. Swedish Hip Register 2009 Annual Report Stanmore modular stem / Trilogy® HA cup
8. Swedish Hip Register 2009 Annual Report Stanmore modular stem / ZCA® cup
9. UK National Joint Register 2010 Annual report Stanmore stem
10.VanderLugtJCTetal.SatisfactoryresultsofStanmoretotalhiparthroplasty after failed osteosynthesis of the femoral neck. Acta Orthop.Belg.,2004;70:25-30.
11. Gerritsma-Bleeker CL et al. The Stanmore total hip replacement. A22yearFollowup.JBoneJointSurg.Br2000;82(1):97–102.
12. Data on file at Biomet. Information on file 10.04.12 Avantage ROM. Not necessarily indicative of clinical performance
13. Data on file at Biomet. Wear testing of Avantage E1 liners – Verification and/or validation report number INST: 4.1.6.2. Notnecessarily indicative of clinical performance
14. Leclercq, S. et al. Charnley-Kerboull - Bousquet hybrid THR after 10 years. Total Hip Arthroplasty. Conference. 3rd International Symposium 2000
15. Tarasevicius, S., Busevicius, M., Robertsson, O., Wingstrand, H. et al. Dual mobility cup reduces dislocation rate after arthroplasty for femoral neck fracture. BMC Musculoskeletal Disorders Journal. 11:175, 2010
16. Data on file at Biomet. Report from Lund University (20070814). Porosity analysis in pre-pack vacuum mixing system.
17. Data on file at Biomet. Report from SP Technical Research Institute of Sweden (20070813). Airborne methyl methacrylate monomer during the use of different bone cement mixing systems
18. Data on file at Biomet. Wear test. Not necessarily indicative of clinical performance
19. Zahos, K. et al. The 15° face-changing acetabular component for treatment of osteoarthritis secondary to developmental dysplasia ofthehip.JBJS[B].Vol.94-B,No.2,February2012
20. Mauerhan, D. et al. Integral porous femoral stem: 5 to 8-year follow-up study. The Journal of Arthroplasty. Vol 12, Issue 3,p250–255, 1997
21. Bourne, RB., et al. Ingrowth surfaces - plasma spray coating to titanium alloy hip replacements. Clinical Orthopaedics and Related Research, No. 298: 37-46, 1994
22. Schmidmaier, G. et al. A new electrochemically graded hydroxyapatite coating for osteosynthetic implants promotes implant osteointegration in a rat model. J Biomed Mater Res 63: 168–172, 2002
23.Reina, R.J., et al. Fixation and Osteolysis in Plasma-SprayedHemispherical Cups with Hybrid Total Hip Arthroplasty. Journal of Arthroplasty. 22:4:531-4, 2007
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