Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy

Category: Hindfoot Introduction/Purpose: Evans and Hintermann calcaneal osteotomies are commonly used to correct flexible pes planovalgus deformity. Both methods are well accepted with good clinical results. The aim of this study was to compare the outcomes after Evans or Hintermann osteotomy. Metho...

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Main Authors: Christian Plaass MD, Sarah Ettinger MD, Leif Claassen MD, Daiwei Yao MD, Christina Stukenborg-Colsman PhD, Kiriakos Daniilidis MD, Tim Mattinger MD
Format: Article
Language:English
Published: SAGE Publishing 2017-09-01
Series:Foot & Ankle Orthopaedics
Online Access:https://doi.org/10.1177/2473011417S000329
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author Christian Plaass MD
Sarah Ettinger MD
Leif Claassen MD
Daiwei Yao MD
Christina Stukenborg-Colsman PhD
Kiriakos Daniilidis MD
Tim Mattinger MD
author_facet Christian Plaass MD
Sarah Ettinger MD
Leif Claassen MD
Daiwei Yao MD
Christina Stukenborg-Colsman PhD
Kiriakos Daniilidis MD
Tim Mattinger MD
author_sort Christian Plaass MD
collection DOAJ
description Category: Hindfoot Introduction/Purpose: Evans and Hintermann calcaneal osteotomies are commonly used to correct flexible pes planovalgus deformity. Both methods are well accepted with good clinical results. The aim of this study was to compare the outcomes after Evans or Hintermann osteotomy. Methods: We retrospectively examined 49 patients who were operated for the treatment of flexible flatfoot deformity between October 2007 and March 2014. Sixteen Evans and 36 Hintermann osteotomies were performed. The data was collected using clinical and radiological examination as well as clinical scores (FAOS, SF-36) during regular follow-up. A paired t-test was used for statistical analysis. A one-way anova with the Holm-Sidak’s multiple comparisons test was used to compare non-parametric data. Results: The mean age was 39.6 ± 18.69 years in the Hintermann (H) group and 32.8 ± 17.86 years in the Evans (E) group. The mean follow up was 67.67 ± 20.57 months in the E- and 39.71 ± 12.77 months in the H-group. In both groups FAOS and SF-36 improved significantly (p<0.05). The hindfoot alignment improved significantly in both groups (p<0.05). The mean time to return to work and sports was 14.25 ± 8.92 and 19.0 ± 18.62 weeks in the E-group, 19.36 ± 16.71 and 28.25 ± 20.07 weeks in the H- group. Seven patients of each group needed an implant removal; one patient underwent an arthrodesis of the subtalar joint in the E-group. There were no significant differences between the outcomes of both groups. Conclusion: Both surgical techniques lead to good correction of the flatfoot deformity and show a significant improvement of the clinical outcome scores. Neither of these two surgical techniques can be identified as being superior.
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spelling doaj.art-7cf39a2128a4491ead8b922d249e0c942022-12-21T23:39:04ZengSAGE PublishingFoot & Ankle Orthopaedics2473-01142017-09-01210.1177/2473011417S000329Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann OsteotomyChristian Plaass MDSarah Ettinger MDLeif Claassen MDDaiwei Yao MDChristina Stukenborg-Colsman PhDKiriakos Daniilidis MDTim Mattinger MDCategory: Hindfoot Introduction/Purpose: Evans and Hintermann calcaneal osteotomies are commonly used to correct flexible pes planovalgus deformity. Both methods are well accepted with good clinical results. The aim of this study was to compare the outcomes after Evans or Hintermann osteotomy. Methods: We retrospectively examined 49 patients who were operated for the treatment of flexible flatfoot deformity between October 2007 and March 2014. Sixteen Evans and 36 Hintermann osteotomies were performed. The data was collected using clinical and radiological examination as well as clinical scores (FAOS, SF-36) during regular follow-up. A paired t-test was used for statistical analysis. A one-way anova with the Holm-Sidak’s multiple comparisons test was used to compare non-parametric data. Results: The mean age was 39.6 ± 18.69 years in the Hintermann (H) group and 32.8 ± 17.86 years in the Evans (E) group. The mean follow up was 67.67 ± 20.57 months in the E- and 39.71 ± 12.77 months in the H-group. In both groups FAOS and SF-36 improved significantly (p<0.05). The hindfoot alignment improved significantly in both groups (p<0.05). The mean time to return to work and sports was 14.25 ± 8.92 and 19.0 ± 18.62 weeks in the E-group, 19.36 ± 16.71 and 28.25 ± 20.07 weeks in the H- group. Seven patients of each group needed an implant removal; one patient underwent an arthrodesis of the subtalar joint in the E-group. There were no significant differences between the outcomes of both groups. Conclusion: Both surgical techniques lead to good correction of the flatfoot deformity and show a significant improvement of the clinical outcome scores. Neither of these two surgical techniques can be identified as being superior.https://doi.org/10.1177/2473011417S000329
spellingShingle Christian Plaass MD
Sarah Ettinger MD
Leif Claassen MD
Daiwei Yao MD
Christina Stukenborg-Colsman PhD
Kiriakos Daniilidis MD
Tim Mattinger MD
Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy
Foot & Ankle Orthopaedics
title Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy
title_full Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy
title_fullStr Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy
title_full_unstemmed Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy
title_short Outcomes after Lengthening Calcaneal Osteotomy for Flexible Flatfoot Deformity– Evans versus Hintermann Osteotomy
title_sort outcomes after lengthening calcaneal osteotomy for flexible flatfoot deformity evans versus hintermann osteotomy
url https://doi.org/10.1177/2473011417S000329
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