Scorpio® Knee TSSingle Axis Revision Knee System

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Scorpio Knee TSSingle Axis Revision Knee System

Uncompromising Stability.

Improved Ligament StabilityScorpio TS is designed to maintain aconstant center of rotation throughoutthe range of motion. This provides uniform ligament tension during thetransition from full extension to deepflexion.

By preserving ligament isometry,Scorpio TS eliminates mid-flexioninstability, which is a common concern in revision knee surgery.

Varus/Valgus StabilityThe Scorpio TS eminence is designed toprovide ±2° of varus/valgus constraint.

Rotational StabilityThe Scorpio TS System is designed toallow up to 10° of internal/externalrotation. This allows for stability withoutconstraint.

Scorpio TShas a single FE axis Competitive designs have multiple FE axes

Scorpio TS achieves ±2°

varus/valgus constraint

Competitive designs alsoallow ±2° of varus/valgus constraint

Scorpio TS allows up to ±10° ofinternal/external

rotation

Competitive designsallow only ±4° of internal/external rotation

Zone ofPotentialInstability

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• Femoral/Tibialoffset adaptor

• Femoral/Tibialoffset adaptor

• Tibial tray

• Posterior femoral boneaugmentation block

• Raised anterior flange

• Femoral stemextension

• Tibial stemextension

• Femoral component

• Tibial bone augmentation block

• Deltafit Keel

• Stabilizer post

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Modular Femoral ComponentDesign• Cobalt Chromium Alloy with LFITSurface Treatment to reduce thepotential for polyethylene wear

• Single medial/lateral radius* betweenfemoral and tibial articulating surfacesto maximize contact area and reducepolyethylene stresses, decreasing thepotential for polyethylene wear

• Compatible with both PS and TSInserts for intraoperative flexibility

• Left and right femoral components withraised lateral flange to improve patellatracking

Femoral Bone AugmentationDesign• Distal and posterior femoral augmenta-tion are mechanically attached to femur

• Augmentation Options:• Distal Femoral BoneAugmentation Blocks, 5mm,10mm, and 15mm

• Posterior Femoral BoneAugmentation Blocks, 5mmand 10mm

Modular Tibial Tray Design• Cobalt Chromium Alloy provides superior wear characteristics at themodular junction

• Deltafit Keel** achieves fixation in thebest quality bone available

• Increased projected area andnormalizations increase load-carrying capability

Maximized Contact Area.Minimized PolyethyleneWear.

Scorpio TS tibial and femoral componentsare conforming in both the M/L and A/Pplanes, and remain conforming throughoutthe range of motion due to single axis rotation, maximizing contact area andreducing the potential for polyethylenewear.

Tibial Bone Augmentation Design• Bone augmentation blocks aremechanically attached to tibial tray

• Augmentation Options:• Tibial Bone AugmentationBlocks, 5mm and 10mm

• 10mm Full AugmentationBlock

• 5° Full Augmentation Wedge

Tibial Bearing Inserts – UHMWPE• TS Insert provides posteriorstabilization, varus/valgus androtational stability

• Available in 10mm-24mm thicknesses

Offset Adaptors• 4mm, 6mm, and 8mm offset adaptorsallow tibial tray to be positioned radiallyabout the stem extender, allowingoptimal bone coverage for tibial applications

• Offsetting capabilities minimize tibialtray overhang that may occur when utilizing stem extenders

• 2mm and 4mm offset adaptors can bepositioned radially, allowing for optimalplacement of femoral component rela-tive to canal

Stem Extension Design• Cobalt-chromium Cemented andTitanium Fluted Press-Fit StemExtender options address all approachesto IM fixation

• Stem interchangeability minimizes O.R.inventory; one set works for bothfemoral and tibial components

• Press-fit stem lengths for femoral andtibial components: 80mm and 155mm

• Twelve Cobalt Chromiumdiameters (10, 11, 12, 13, 14,15, 16, 17, 18, 19, 21, and23mm)

• Twelve Titanium Fluteddiameters (10, 11, 12, 13, 14,15, 16, 17, 18, 19, 21, and23mm)

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Longer Moment Arm IncreasesPerformanceTraditional multiple axis knee designshave a relatively short patello-femoralmoment arm which gets shorter as itmoves anteriorly and proximally with thechanging center of rotation. This decreasesleverage on the quadriceps muscle,forcing the patient to work harder toachieve full extension. In comparison, the center of rotation of the Scorpio TSfemoral component is fixed at thetrans epicondylar axis. This increases thelength of the patello-femoral momentarm, which maximizes quadricepsefficiency and allows the patient toachieve full extension with less effort.1

Longer Moment Arm DecreasesPotential for PainPatello-femoral joint reaction forcefrequently contributes to anterior kneepain following total knee arthroplasty.Traditional knee designs with a shortpatello-femoral moment arm increasejoint reaction force, and thus increase the potential for anterior knee pain.However, the Scorpio TS design, with itslonger patello-femoral moment arm, canbe expected to decrease the potential foranterior knee pain. Patients will appreciatethis advantage, especially when risingfrom a chair, climbing or descendingstairs, or walking long distances.1

Reliable Joint Line RestorationThe Scorpio TS System providesinstrumentation and augmentationoptions to accurately restore the anatomicaljoint line. The system utilizes threereference points from which to base jointline restoration: medial epicondyle, inferiorpole of the patella, and tibial tubercle.

The Advantages ofAdvanced, Single AxisDesign

Traditional DesignTraditional multiple axis patello-femoralmoment arm and multiple radius distal/posterior condyles has transitionpoints in rotation.

360 degree instrumented femoral radial offsetting. The all-in-one cutting guidehas been designed to allow for a 2mm or 4mm radial offset for calculated,accurate and reproducible radial positioning.

Scorpio Knee DesignSingle axis patello-femoral moment arm islonger than that of traditional designs andScorpio has a single distal/posterior radius,providing smooth rotation.

1 Mahoney O, McClung C, Phil M, Schmalzried T.Improved Extensor Mechanism Function with theScorpio Total Knee Replacement. Orthopedic ResearchSociety annual meeting, 1999.

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325 Corporate DriveMahwah, NJ 07430t: 201 831 5000

www.stryker.com

A surgeon must always rely on his or her own professional clinical judgment when deciding whether to use aparticular product when treating a particular patient. Stryker does not dispense medical advice and recommendsthat 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 mustalways refer to the package insert, product label and/or instructions for use before using any Stryker product.Products may not be available in all markets because product availability is subject to the regulatory and/or medicalpractices in individual markets. Please contact your Stryker representative if you have questions about the availabilityof Stryker products in your area.

Stryker Corporation or its divisions or other corporate affiliated entities own, use or have applied for the followingtrademarks or service marks: LFIT, Scorpio, Stryker. All other trademarks are trademarks of their respective ownersor holders.

Literature Number: LSKTS/B Rev. 1MS/GS 06/11

Copyright © 2011 StrykerPrinted in USA

Scorpio Knee TSSingle Axis Revision Knee System

Designed ForUncompromising Stability

• Single axis design

• Improved ligament stability

• Varus/valgus stability

• Excellent rotational stability

A Strong Commitment to YourTotal PreparationStryker understands the unexpectedchallenges facing the orthopaedicsurgeon during revision knee surgery.That is why we are committed to providingthe finest, most comprehensive system ofimplants and instruments available – asystem uniquely designed to enable theorthopaedic surgeon to be prepared forany situation that may be encounteredduring complex revision knee surgery.

Scorpio TS Instruments –Designed for Maximum Accuracyand Ease of UseThe Scorpio TS System features IM-based instrumentation and intuitivedesign to ensure consistent andreproducible results. Instruments allowfor radial offsetting for both the femurand tibia. (Radial offsetting is availablewith cutting blocks, trials, and implants.)

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