*smith&nephew POLARCUP™Dual Mobility System

Product Information

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

x

Low wear

Advanced bearing

technology

Low dislocation rates

Increased range of motion

Comprehensive product

portfolio

Accurate and efficient

instrumentation

DUAL MOBILITYInsert / cup articulation

Ball head / insert articulation

THIRD ARTICULATIONNeck / insert articulation

POLARCUP combined with a

polished neck stem without

any roughness is highly

recommended

ADVANTAGESof POLARCUP™ Dual Mobility System

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

02 Product Information

LOW WEAR

THE FACTS…

NEUTRAL POSITIONThe insert is self-aligning,

allowing loading following the

path of least resistance

• The majorityof movement occurs in the ball head / insert articulation.

• The freely moving insert ensures that movement never occurs in the ball head / insert articulation and the insert / cup articulation at the same time.

• The optimized cup design prevents impingement with soft tissues and the neck of the stem.

• Transmission of tensions between the bone / cement cup construct are eliminated due to the freely moving insert.

POLARCUP in vitro wear at 5 million cycles vs Total Hip Arthroplasty

LOW LEVEL ACTIVITYPrimary movement occurs in the

ball head / insert articulation,

allowing the insert to sit in its

natural position

HIGH LEVEL ACTIVITYSecondary movement occurs in

the insert / cup articulation

16

12

8

4

0

Wear rate (mg/million cycles)

8.87

0.39 0.9

12.5

Conventional THA – cross-linked Polyethylene (XLPE)

Conventional THA – Standard Polyethylene

POLARCUP – cross-linked Polyethylene (XLPE)

POLARCUP – Standard Polyethylene

*Smith & Nephew internal test data

A BA BA B

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

POLARCUP™

03

ADVANCED BEARING TECHNOLOGY

The perfect equation for hips.More than a decade ago, Smith & Nephew introduced

OXINIUM™ Oxidized Zirconium. Its combination of hardness,

smoothness and scratch-resistance makes it a superior

choice for hip implants.

The facts in black and white …

OXINIUM has a surface hardness that is

over twice that of cobalt-chrome.

OXINIUM may last longer than other

implants as it reduces implant wear

common to other hips based on lab

simulator studies.

OXINIUM avoids the risk of brittle fracture

that can occur with ceramic implants and

is 20% lighter than cobalt-chrome.

OXINIUM contains less than 0.0035%

detectable nickel, the leading cause of

adverse reactions in patients with metal

allergies.

04 Product Information

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

FLEXION

118.5°

POLARCUP

ADDUCTION

66.4°TOTAL ROM

185.4° TOTAL ROM

126.9°

EXTENSION

66.9°

ABDUCTION

60.5°ADDUCTION

66.4°

ABDUCTION

60.5° 60.5°

FLEXION

118.5°

POLARCUP

ADDUCTION

66.4°TOTAL ROM

185.4° TOTAL ROM

126.9°

EXTENSION

66.9°

ABDUCTION

60.5°

ø 47 mm*

LOW DISLOCATION RATE

STANDARD HIP Ø 50 mm28 mm head

(28 mm diameter head)

Jump Distance = 3.8 mm**

POLARCUP™ Ø 53 mm28 mm head

(53 mm insert = 47 mm diameter head)

Jump Distance = 11.0 mm**

The insert acts as a large

head increasing the jump

distance and reducing the

risk of dislocation 1,2,3,4,5

and instability in the joint

The superior-posterior

6° skirt under the

equatorial rim increases

jump distance further

decreasing the risk of

dislocation ensuring

additional stability

ø 28 mm*

INCREASED RANGE OF MOTIONThe range of motion is significantly increased due to the high

head / neck ratio compared to conventional acetabular cups.

*Range of Motion (ROM) Evaluation has been performed in accordance to EN ISO 21535. The analysis has been done with a size 6 standard Polarstem, in accordance with 28 mm ball head, 55/28 mm Polarcup Insert and a 55 mm Polarcup.

* Smith & Nephew internal test data

*Cup placement at 45° inclination and 15° anteversion**Smith & Nephew internal test data

POLARCUP*

Flex – Ext 185.4º

Add – Abd 126.9º

Rot. Int – Ext 223.5º

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

POLARCUP™

05

One cup, four combinations

The screws and pegs can

be used in combination with

the Ti Plasma / HA flanged

POLARCUP to provide

additional fixation

PRODUCT FEATURES

ADDITIONAL FIXATION

LOW WEARAll versions of the POLARCUP™ have a highly polished

internal surface allowing for minimal wear.

SELF-ALIGNING IMPLANTThe circular feature on the dome of the cup ensures correct

cup placement and optimal load transfer.

The self-aligning insert allows loading following the path of

least resistance.

SURFACEThe Ti-Plasma and Ti-Plasma / HA surfaces have a high

degree of surface roughness with good osteointergration.

STABILITYThe equatorial teeth and ribs prevent rotation and allow for

good primary stability.

CEMENTThe cemented POLARCUP can be used with previously

implanted reinforcement rings, providing increased stability

and reduced dislocation rates1 in complex acetabular

revisions5.

Flanges broken off using the flange cutter

Flanges bent over the acetabular rim fixed with 1 or 2 cortical screws

Flanges bent over the acetabulum fixed with 1 or 2 cortical screws and 2 impacted anchoring pegs

Flanges bent over the acetabular rim without cortical screws

06 Product Information

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

PRODUCT OVERVIEW

Ti-Plasma / HA Cementless Cup with flanges

Ti-Plasma Cementless Cup

Stainless Steel Cup for use with cement only

Implant Overview

Sizesmm

Ti-plasma / HA cementless cup with flanges

Ti-Plasma cementless cup

Stainless steel cemented cup

PE Insertø 22 mm head

PE Insertø 28 mm head

XLPE Insertø 22 mm head

XLPE Insertø 28 mm head

43 75002056 75017181 75017194 • •

45 75002057 75017182 75017195 • •

47 75002058 75017183 75017196 • • •

49 75002059 75017184 75017197 • • •

51 75002060 75017185 75017198 • • •

53 75002061 75017186 75017199 • • •

55 75002062 75017187 75017200 • • •

57 75002063 75017188 75017201 • • •

59 75002064 75017189 75017202 • • •

61 75002065 75017190 75017203 • • •

63 75002066 75017191 75017204 • • •

65 75002067 75017192 • • •

67 75002068 75017193 • • •

Cortical Screw

(for use with the

Ti-Plasma/HA

flanged cup)

Peg (for use with

the Ti-Plasma/HA

flanged cup)

PE Insert

XLPE Insert

APPLYING SCIENCE TO MOBILITYCombined with VERILAST™ Technology for unmatched performance

POLARCUP™

07

Manufacturer

Smith & Nephew Orthopaedics AG

Oberneuhofstrasse 10d

6340 Baar

Switzerland

References

1 Hamadouche et al. The use of cemented dual mobility

socket to treat recurrent dislocation. Clin Orthop Relat Res

(2010) 468:3248-3254

2 Guyen et al. The use of Dual Mobility implants for primary

total hip replacements in patients at risk of dislocation.

Journees Lyonnaises de Chirurigie de la Hanche 2008

3 Hailer et al. Dual-mobility for revision due to instability

are associated with a low rate of re-revisions due to

dislocation. 288 patients from the Swedish Joint Register.

Acta Orthopaedica 2012;83 (6): 566-571

4 Civinini et al. A Dual-Mobility cup reduces the risk of

dislocation in isolated acetabular revisions. Clin Orthop

Relat Res (2012) 470:3542-3548

5 Vasukutty et al. The double-mobility acetabular component

in revision total hip replacement. The United Kingdom

experience. J bone Joint Surg Br. 2012;94-B: 603-8

™ Trademark of Smith & Nephew. Lit. No. 01098-en V2 Ed. 02/14 0 1 2 3

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