Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Knee
Abstract number: 22826
POSTERIOR STABILISED IMPLANTS IN PRIMARY TOTAL KNEE
REPLACEMENT
Pierre-Paul CASTELEYN 1 , Dirk GANZER 2 , Hans BAYER-HELMS 3 , Robert
KRAUSE 4 , Robert KRAUSE 4
1
Universitair Ziekenhuis Brussel, Brussels (BELGIUM),
2
Dietrich-Bonhoeffer-
Klinikum, Altentreptow (GERMANY),
3
St. Josef-krankenhaus-Hilden, Hilden
(GERMANY), 4 Orthopädische Fachklinik Verein Oberlinhaus, Potsdam (GERMANY)
Introduction: The purpose of this consecutive multicentre prospective case series
study was to evaluate the short term clinical, functional, and radiological outcome of
a posterior stabilised primary total knee arthroplasty (balanSys® PS, Mathys Ltd
Bettlach, Bettlach, Switzerland). Methods: 256 (244 monolateral, n=6 bilateral)
consecutive patients were treated for osteoarthritis with a posterior stabilised total
knee arthroplasty in 4 centres. The follow-up consisted of clinical as well as
radiological evaluations, preoperatively, and at 6 weeks, 6 months, 1 and 2 years
postoperative.Results: Follow-up information is until now available for 236 cases. The
mean follow-up time was 14.9 months (range 1.3-30.3 months). Most striking with
this design was the rapid recovery of the patients : - KSS, preoperative : 110, 3m
:150, 6m : 170- Knee score, preoperative : 57, 3m : 86, 6m : 93-VAS pain,
preoperative : 7.9, 3m : 3, 6m : 1.3- VAS satisfaction, preoperative : 3.1, 3m : 7,
6m : 8 Statistical analysis used the Wilcoxon 2 sided test and the Chi-square-test.
As major complications we had to revise two patients for instability. 12 patients
showed limited mobility and 1 patient is suspected of a radiological loosening.
Conclusion: This type of posterior stabilised total knee prosthesis in combination with
the described surgical techniques shows promising radiological and clinical short
term results, with a rapid recovery and with an acceptable rate of adverse events.
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