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Orthopeadics

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SECUR-FIT®

ADVANCEDTechnology Guide

Refinements

V40 taper

Design

Normalizations

Proportional stem sizing

Signature body geometry of Omnifit and Secur-Fit

Polished distal tip

SOMA-designed offsets*

Transitional press-fit

PureFix HA plasma coating

*Based on 556 CT scans.

127° and 132° neck angles

SECUR-FIT® ADVANCED

Fit and fill femoral stems today

Total hip arthroplasty (THA) with cementless fit and fill femoral stems has achieved clinical success.1–3 As the THA market has expanded, orthopedic surgeons have continued to seek out femoral stem designs with clinical results.4 The Secur-Fit Advanced Femoral Hip System is designed for surgeons that prefer a femoral stem based on a clinically successful design that also features modern refinements with regards to features and instrumentation.

Population-based orthopedic design using SOMA

For over 40 years, the process of orthopedic implant development has been relatively straightforward. Historically, designs have been pioneered by industry engineers in collaboration with orthopedic surgeons, applying lessons learned from past implant designs to new devices. Implant shape and size was often dictated by taking physical measurements of a small sample of cadaveric bones using mechanical measuring devices or using X-ray measurements limited to two anatomical planes.

The way implants are designed at Stryker has changed this, thanks to investment in the new and unique Stryker Orthopaedics Modeling and Analytics (SOMA) system. At the heart of SOMA is a large database of high-resolution CT scans of bones from which size, shape, density, and inner/outer cortical boundaries are measured. The database comprises bone scans from a diverse population that includes different age groups and ethnicities, and both genders. SOMA incorporates advanced 3D modeling tools that enable analysis

across the whole SOMA library or in subsets of patients, and powerful functionality to design, model, and analyze the fit of novel orthopedic devices.+

In the design of Secur-Fit Advanced, SOMA was used to determine the appropriate neck lengths and head centers to assist with recreating natural head offset in a wide variety of patients5* – with the aim of accurately restoring biomechanics.

The fit and fill stem has advanced

One of the philosophies driving the evolution of cementless femoral stems is ‘fit and fill’, where the goal is to fit the implant such that it fills the femoral canal.6 Stryker’s flagship fit and fill stem, Secur-Fit Advanced incorporates the signature body geometry and normalizations of OmniFit and Secur-Fit. Published studies demonstrate clinical performance and survivorship of more than 15 years with OmniFit HA1 and up to 10 years with Secur-Fit HA and Secur-Fit Plus.2,3 Secur-Fit Advanced also features Stryker’s PureFix HA coating applied proximally, which is supported by over 15 years of clinical success in different stems.1

SECUR-FIT ADVANCED TECHNOLOGY GUIDE *Based on 556 CT scans +Based on the number available in the proprietary database at the time of the fit study

SECUR-FIT® ADVANCED

SECUR-FIT ADVANCED TECHNOLOGY GUIDE

Clinical advantages of Secur-Fit Advanced

Secur-Fit Advanced is based on prior clinically successful designs1–3 with refinements to the neck geometry5 and instrumentation: a proven design, refined. The Secur-Fit Advanced system offers two neck angles – 127° and 132° – which allows flexibility in adjusting offset intra-operatively. In addition, normalization patterns on the anterior and posterior aspects of the proximal end of the stem facilitate press-fit stability and load transmission. Based on 3D simulations, these normalizations are designed to convert medial and lateral shear stresses to compressive forces, which may facilitate proximal loading.7

Secur-Fit Advanced instrumentation has been designed to make surgical procedures efficient and reproducible.8 Secur-Fit Advanced features a transitional press-fit design and refined broach technology that together provide accurate and reproducible stem seating in bench-top testing.8

Additional design refinements include the use of SOMA. Stryker continues to invest in its unique proprietary SOMA system, changing the way implants are designed. Secur-Fit Advanced has SOMA-designed offsets to help restore patient biomechanics.5*

Press-fit0.125 mm/side

Press-fit gradient to end of plasma

spray region

BroachImplant

Secur-Fit HASecur-Fit Max

Secur-Fit Advanced

HS1 HS2

OmniFit HA

*Based on 556 CT scans

The evolution of Stryker’s fit and fill stems

1995 and 2005 201319901981

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Secur-Fit Advanced ImplantsDescription Catalog Number

Secur-Fit Advanced 127°

127 Size 6 Secur-Fit Advanced Stem 1601-06127







Secur-Fit Advanced 132°

132 Size 4 Secur- Fit Advanced Stem 1601-04132









References1. Capello W, D‘Antonio J, Jaffe W, Geesink R, Manley M, Feinbery J. Hydroxyapatite coated

femoral components. 15 year follow-up. Clin Orthop Relat Res. 2006;453:75–80.2. Incavo SJ, Beynnon BD, Coughlin KM. Total hip arthroplasty with the Secur-Fit and Secur-Fit

plus femoral stem design. A brief follow-up report at 5 to 10 years. J Arthroplasty. 2008;23: 670–676.

3. Australian Joint Replacement Registry Annual Report 2012.4. Surgical Procedure Volumes, 2012. Millennium Research Group.5. Stryker test report RD-13-023. Determination of Secur-Fit Advanced neck lengths and head

centers. Based on 556 CT Scans6. Laine HH, Lehto Mu, Moilanen T. Diversity of proximal femoral medullary canal. J Arthroplasty.

2000;15:86–92.7. Stryker Test Report RD-13-001. Effect of stem normalizations on the stem to bone load

transfer mechanism.8. Stryker Test Report RD-13-029. Test results for 0915A-P04: in-vitro comparison of Secur-Fit

Advanced to Secur-Fit Max press-fit designs in Sawbones during impaction loading.

A surgeon must always rely on his or her own professional clinical judgment when deciding whether to use a particular product when treating a particular patient. Stryker does not dispense medical advice and recommends that surgeons be trained in the use of any particular product before using it in surgery.

The information presented is intended to demonstrate the breadth of Stryker product offerings. A surgeon must always refer to the package insert, product label and/or instructions for use before using any Stryker product. The products depicted are CE marked according to the Medical Device Directive 93/42/EEC. Products may not be available in all markets because product availability is subject to the regulatory and/or medical practices in individual markets. Please contact your Stryker representative if you have questions about the availability of Stryker products in your area.

Stryker Corporation or its divisions or other corporate affiliated entities own, use or have applied for the following trademarks or service marks: OmniFit, PureFix, Secur-Fit, SOMA, Stryker, V40. All other trademarks are trademarks of their respective owners or holders.

Literature Number: SECUFA-B-3 Copyright © 2013 Stryker Printed in USA

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