P160 - Clinical study of the novel FlexitSystem implant for high tibial open wedge osteotomy

Corresponding Author
The authors declare that they have received research support from Neosteo (Nantes, France) for this study. The study sponsor did not have any involvement in the study design, collection, analyzing and interpretation of data; in the writing of the manuscri
Presentation Topic
Poster Rating



The FlexitSystem implant is a novel implant used in open wedge high tibial osteotomy.

Methods and Materials

A clinical safety study was performed. Retrospectively 50 patients were analyzed who were treated with an open wedge high tibial osteotomy and the new FlexitSystem implant, with a minimal follow-up of one year. Complication rate, radiographic outcomes and implant removal were investigated.


One patient underwent a revision surgery because of loss of correction and non-union. The complication rate was 10.0%. No other radiographic complications (screw breakage, implant failure) were found. In 24 patients (48%) the FlexitSystem implant was removed at a mean follow-up of 12.6 months (range 2.6 till 24.0 months). The mean reason was irritation of the implant.


The FlexitSystem implant is a clinical safe and stable implant for an open wedge high tibial osteotomy, with a low complication rate. The rate of implant irritation requiring removal remained high.