caa a22 4500 605457514 CHVBK 20210128100223.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00167-014-3287-8 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3287-8 Prospective evaluation of a new plate fixator for valgus-producing medial open-wedge high tibial osteotomy [Elektronische Daten] [Matthias Cotic, Stephan Vogt, Matthias Feucht, Tim Saier, Philipp Minzlaff, Stefan Hinterwimmer, Andreas Imhoff] Purpose: The purpose of this study was to prospectively evaluate the clinical, radiographic, and sports-related outcome at 24months after valgus-producing medial open-wedge high tibial osteotomy (owHTO) using a 2nd generation peek-carbon composite plate. Methods: Between 2010 and 2011, the 2nd generation PEEKPower HTO-Plate® was used for medial owHTO in 28 consecutive patients (19 men, 9 women; mean age±SD: 45±11years; mean varus deviation±SD: 4°±2°). All of the patients had an osteotomy gap height of ≤12mm without bone grafting. Visual analog scale (VAS) for pain, WOMAC score, and Lysholm score were evaluated preoperatively and at 12 and 24months postoperatively. Sports-related outcomes included the Tegner scale, and a self-designed questionnaire preoperatively and 24months postoperatively. Fixation stability of the implant was evaluated radiographically in two planes by comparing the medial proximal tibial angle (MPTA) and tibial slope 2days after medial owHTO (baseline measurements) and after implant removal (follow-up measurements). Complications were recorded during the whole study period. Results: Compared to preoperative conditions, VAS, WOMAC, and Lysholm scores improved significantly (p<0.05) at the 12- and 24-month follow-up. No significant differences were found between the 12- and 24-month follow-up. After 24months, the sports frequency increased significantly (p<0.05). No significant differences between baseline and follow-up measurements for the MPTA and tibial slope were observed. Total complication rate was 4%, with one patient developing non-union. Conclusion: In the clinical practice, the 2nd generation PEEKPower HTO-Plate® is a safe and efficient implant for medial owHTO without bone grafting in patients with an osteotomy gap of ≤12mm. Level of evidence: III. European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA), 2014 High tibial osteotomy nationallicence Open wedge nationallicence 2nd generation PEEKPower HTO-Plate nationallicence Plate fixator nationallicence Cotic Matthias Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Vogt Stephan Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Feucht Matthias Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Saier Tim Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Minzlaff Philipp Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Hinterwimmer Stefan Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Imhoff Andreas Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/12(2015-12-01), 3707-3716 0942-2056 23:12<3707 2015 23 167 https://doi.org/10.1007/s00167-014-3287-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-3287-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cotic Matthias Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 700 1- Vogt Stephan Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 700 1- Feucht Matthias Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 700 1- Saier Tim Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 700 1- Minzlaff Philipp Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 700 1- Hinterwimmer Stefan Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 700 1- Imhoff Andreas Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/12(2015-12-01), 3707-3716 0942-2056 23:12<3707 2015 23 167