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plastic limit of UHMWPe. Changes in the femoral condylar shape after TKA were small basedon alignment analysis of the medial and lateral condyles. Kinematic analysis revealed anaverage 16.9 degrees tibial internal rotation with flexion to 90 degrees. Condylar translationsexhibited a medial pivot pattern from 0 to 90 degrees of flexion, with an average of 0.9 mmanterior translation of the medial condyle and 9.0 mm posterior translation of the lateralcondyle. As a result, tibial internal rotation with medial pivot pattern was accepted.Conclusions: The novel TKA design based on restoration of articular surface orientation andbony geometry exhibits in vivo kinematics and alignment, contact mechanics that arecompatible with excellent functional performance and implant longevity for Asian.ï»¿Friday, October 8, 2010, 14:00-14:50Session A14: Complication ManagementAggressive Early Debridement Can Be Successful for Infected Total HipArthroplasty*Mohamed Sukeik - University College London Hospital - London, United KingdomF S Haddad - University College London Hospital - London, United KingdomIntroduction*Email: msukeik@hotmail.comUp to 2% of total hip arthroplasties (THA) are still complicated by infection. This leads todissatisfied patients with poor function, and has far-reaching social and economicconsequences. The challenge in these cases is the eradication of infection, the restoration of fullfunction and the prevention of recurrence. We report the outcome of early aggressivedebridement in the acutely infected THA.MethodsWe studied 28 consecutive patients referred with acutely infected THA (18 primaries, 10revisions) which occurred within 6 weeks of the index operation or of haematogenous spreadbetween 1999 and 2006. Microbiology confirmed bacterial colonisation in all cases with 20early post-operative infections and 8 cases of acute haematogenous spread. Patients with acemented THA underwent aggressive open debridement, a thorough synovectomy and exchangeof all mobile parts. Uncemented THA were treated as a single stage revision with removal of allimplants, aggressive debridement and re-implantation of new prosthesis. Antibiotics werecontinued in all cases until inflammatory markers and the plasma albumin concentrationreturned to within normal limits.ResultsTen patients required multiple washouts. 7 patients needed a two stage revision. 21 patientsreturned to their expected functional level without removal of the implants and with noradiographic evidence of prosthetic failure. At a minimum 2 years follow-up, we had a 75%infection control rate. The outcome was significantly better in patients treated in the first 120file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]
hours after presentation.Discussion and ConclusionOur data suggests that there is a role for early aggressive open debridement in acute infectionsafter THA with an excellent chance of eradicating infection.Thursday, October 7, 2010, 16:50-17:40Session B8: Management of Complications in TKATranexamic Acid in Total Knee Replacements: A Meta-Analysis*Mohamed Sukeik - University College London Hospital - London, United KingdomSattar Alshryda - The James Cook University Hospital - Middlesbrogh, United KingdomAnthony Nargol - University Hospital Of North Tees - Stockton on Tees, United KingdomJames Mason - School Of Health, Durham University - Stockton on Tees, United KingdomIntroduction*Email: msukeik@hotmail.comTotal knee replacements (TKR) are among the commonest operations performed in orthopaedicpractice. Literature review showed that 10-30% of patients who underwent TKR needed 1-3units of blood.Tranexamic acid (TXA) has been popularised as an effective way to reduce blood loss andsubsequent blood transfusion.Our aim was to investigate the value of TXA in reducing blood loss and blood transfusion afterTKR and other clinical outcomes such as deep venous thrombosis (DVT), pulmonary embolism(PE), ischaemic heart diseases and mortality.Patients and MethodsA systematic review and meta-analysis of published randomised and quasi-randomised trialswhich used TXA to reduce blood loss in knee arthroplasty were conducted.Results18 clinical trials were considered suitable for detailed data extraction. There were no trialswhich utilised TXA in revision TKR.Blood loss: Fourteen studies (885 patients) were eligible for this outcome. Using TXAsignificantly reduced postoperative blood loss by an average of 203.64.65 ml (P-value
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Convened under the auspicious of es
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Special Thank YouISTA’s Board of
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Invited SpeakersJean Noel ArgensonM
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Thursday, October 7, 2010Session AS
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Oxinium Versus Metal on Polyethylen
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13:30 - 14:00Invited talk: Hip Arth
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What Can We Do With Periprosthetic
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New Concept in Soft Tissue Balancin
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Comparison of Drain Clamp After Bil
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Session - A7:45 - 8:15Invited talk:
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Massive Endoprosthetic Replacement
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Hydroxyapatite Block for Reconstruc
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13. Dilute Betadine Lavage Prior to
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37. Fluoroscopic Analysis of Advanc
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60. Influence of Impaction Forces o
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85. Surgical Wound Infection as a P
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Saturday, October 9, 2010, 8:15-9:0
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algorithm was tested for short incr
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Ten patients with fracture acetabul
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Saturday, October 9, 2010, 14:00-14
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*Email: drbaldiniandrea@yahoo.itThe
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evision surgery were aseptic loosen
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*Dante Parodi - Clinica Alemana De
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Thursday, October 7, 2010, 17:30-18
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and subsequent exposure time to rad
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of the patient during the acetabula
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FiguresFriday, October 8, 2010, 11:
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Results: No further revisions were
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Minimally Invasive Total Knee Arthr
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and are due to insufficient fixatio
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Methods: An inverse finite element
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Finally a subject-specific model co
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prosthesis component have been calc
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novel tools and devices that are ab
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from 48.6 to 92.2, while functional
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Friday, October 8, 2010, 8:00-8:30S
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The Kaplan-Meier survival rate was
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especially because most of the stan
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knee and offer a new development of
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This was the patient with revision
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Ain Shams UniversityCairo, EgyptPle
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Two-stage revision arthroplasty is
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inexpensive modular femoral compone
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successful treatment outcome was de
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Pathogen N PercentStaphylococcus au
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component as their permanent prosth
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FiguresFigure 1Friday, October 8, 2
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*Email: joseph.fetto@nyumc.orgNon-c
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MATERIAL AND METHODS423 total knee
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MATERIALS AND METHODSFrom January 1
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Introduction:Mike Reed - Wansbeck G
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Conclusions:To the best our knowled
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ing superior clinical results when
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one) in 11 (26%), type II (failure
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Correction of leg length discrepanc
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motion is separated from the transv
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Is the Frecnh Paradox a Reality? Lo
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uncovered in the remaining 53 hips.
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found in the currently used MOM bea
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followed since their initial presen
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ã€€On the axial plane, the ave
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For revision hip replacements, the
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Friday, October 8, 2010, 15:20-16:0
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ResultCup geometries with screws ha
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to insert the guide pin into the fe
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to 8% of THA patients have cups mal
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In a recent investigation the effec
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Conclusions.Fixed valgus angle rese
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fluoroscopic analysis of kinematics
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vivo motion of MB total knee arthro
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ResultsMean follow-up was 6 yrs (SD
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precision of implant placement. We
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*J. Philippe Kretzer - Laboratory o
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COM group whereas both components w
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In the present study, the patella h
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characteristic of the MB prosthesis
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Friday, October 8, 2010, 15:00-16:0
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The ceramic on ceramic strategy wit
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acetabulum, which with a modern por
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Friday, October 8, 2010, 14:00-14:5
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Conclusion: The results of this stu
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The incidence of periprosthetic fra
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*Email: sgh_iizu@grn.janis.or.jpAbs
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components (78 %) that remained rig
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hydroxyapatite ceramic in bone tumo
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one month later to a mean value of
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Keywords: total knee arthroplasty,
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of the tensor (Fig. 1B). During eac
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structures including MCL cut for ac
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31. Whiteside LA, Kasselt MR, Hayne
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Corne van Loon - rijnstate hospital
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Osaka, JapanTomonori Arita - Gradua
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Gary Poehling - Wake forest univers
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mean Harris hip score was 98 points
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Discussion:This study demonstrates
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Thursday, October 7, 2010, 8:00-8:5
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we usually excise both ACL & PCL, s
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true and false acetabulum2- In Femo
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Minimal invasive surgery (MIS)is ac
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*Stephen Murphy - New England Bapti
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scratching effect against the femor
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transformation associated with the
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Bearing Surfaces in Primary Total H
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Introduction: Proper rotational ali
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Materials and Method4 cases and 5 k
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to improve exposure in difficult ca
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We have used different stems (strai
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Page 252 and 253: Our preliminary results are encoura
Page 254 and 255: A modified titanium spinal pedicle
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Page 262 and 263: Use of a novel ligament gap balanci
Page 264 and 265: femur 659, proximal tibia 198, prox
Page 266 and 267: *Pietro Ruggieri - University of Bo
Page 268 and 269: The presentattion will focus on tec
Page 270 and 271: Accuracy of Femoral Component Align
Page 272 and 273: Results.Dislocation: no.Clinical ou
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Page 276 and 277: iocompatible material to man,it is
Page 278 and 279: BackgroundThe current literature te
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Page 282 and 283: stability of joint in full extensio
Page 284 and 285: with femoralrevision combined with
Page 286 and 287: arthroplasty. Obesity is an appropr
Page 288 and 289: Conclusions:We conclude that with u
Page 290 and 291: There was no difference in function
Page 292 and 293: We present the results of a consecu
Page 294 and 295: Barbara Maestri - university of rom
Page 296 and 297: gap balancing and providing reasona
Page 298 and 299: Highly Crosslinked PE as Alternativ
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Page 304 and 305: age limit for THA can be lowered.Fr
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Page 310 and 311: The hammering sounds in press-fit i
Page 312 and 313: We investigated the period from fir
Page 314 and 315: technique.The subjects were 16 knee
Page 316 and 317: Persistent patellofemoral symptoms
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Page 320 and 321: slope on the medial side was minima
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Page 324 and 325: Tateaki Shimakawa - Tokushima Munic
Page 326 and 327: male.We retrospectively reviewed pr
Page 328 and 329: affected the interface stresses cal
Page 332 and 333: Introduction:Cadaveric Evaluation o
Page 334 and 335: defects.Conclusion: Periprosthetic
Page 336 and 337: FiguresFigure 1 Figure 2 Figure 3 F
Page 338 and 339: Poster: 4Testing High Performance A
Page 340 and 341: Background:Modular endoprosthetic r
Page 342 and 343: The mean follow up was 4.2 years (3
Page 344 and 345: compared to the attending surgeon.D
Page 346 and 347: Poster: 13Postural Control Features
Page 348 and 349: e extended to the cup with malposit
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Poster: 17A Novel Method to Determi
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and it’s the highest rate has bee
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otation and 19 had a paradoxical ti
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Poster: 23Lumbar Disc Replacement.
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VTE-, we considered that the two co
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Poster: 27Accuracy of Acetabular Cu
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Poster: 29In Vivo Measurement of Pe
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Poster: 31Clinical and Laboratory V
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Figure 1: Typical steps used for co
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Alignment & bonecutting errorsMeanT
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allowing bone cutting to consume 25
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17. Jonsson B, Astrom J. Alignment
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Branislav Jaramaz - The Western Pen
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Poster: 34What Is the Blood Transfu
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dislocation after total hip arthrop
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Poster: 38Intraarticular Injection
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Sudhir Rao - South London Heathcare
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*Naoyuki Katayama - Hokkaido Orthop
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198.5±5.5°and 157.0±7.5°, respe
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Introduction*Sujith Konan - Univers
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Poster: 48IntroductionRevision Hip
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In conclusion we have developed a s
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laxity on wear and joint kinematics
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measurement interval. The wear rate
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spring model for AP translation and
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Haider, H., Walker, P. S., 2002. An
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Poster: 52Development of a Constant
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*Takahiro Lida - Osaka City Univers
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coating, have been developed with t
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3. Push-out Biomechanical AnalysisM
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anodized/hydrothermally treated tit
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However, she then suffered from sev
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central osteophytes in hip osteoart
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Lucia Manunta - University - sassar
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Based on above measurement we had t
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3, 6, 12, 18, and 24 months post-op
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amorphous and degrades faster in th
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Conclusion: the longivity of hip ar
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Poster: 70Outcome of Ceramic-Cerami
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posterior structures (facets and fa
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After thirty-eight months in vivo,
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disadvantages are provided by this
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chipping of the insert. Therefore a
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Metal cups, embedded in a cast resi
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about their preferences regarding f
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A periprosthetic femoral fracture a
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Superficial wound infection occurre
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International scientific literature
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were balanced to within 2° to 3°
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ecause of deep infction. One was ma
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Poster: 91So Are Sutures Actually B
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patients having staged bilateral pr
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adiographs often underestimate the
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A total of 7 osteoarthritis hip wer
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Poster: 98Appropriate Spatial Desig
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Poster: 100Total Hip Arthroplasty i
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Poster: 102Aggressive Early Debride
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this study was to assess the agreem
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Hemiarthroplasty - an Innovative Me
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p=0.55. This minimal change in leng
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Poster: 109Severe Persistent Synovi
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*Email: jerome.tonetti@free.frIn pr
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in 5 QFT-G positive patients with a
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arthroplasty (TKA). In the other ha
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