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Journal of Orthopaedic Science

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01-11-2012 | Original Article

Results of Tönnis-type acetabuloplasty in patients with developmental hip dysplasia

Authors: Ugur Gunel, Bulent Daglar, Bulent A. Tasbas, Onder Delialioglu, Kenan Bayrakci

Published in: Journal of Orthopaedic Science | Issue 6/2012

Abstract

Aim

The aim of this prospective study was to evaluate the outcome of open reduction and Tönnis acetabuloplasty as the first method of treating developmental dysplasia of the hip (DDH) in children in early childhood at walking age.

Materials and methods

Between 2005 and 2009, 34 hips of 34 children were operated on with the aforementioned method. Mean age was 25.6 (range 12–44) months, and mean follow-up was 3.6 years. During the follow-up period ,the hips were evaluated using the acetabular index and for development of avascular necrosis and redislocation. Functional evaluation was also conducted.

Results

Clinically, 97.3 % of patients had excellent and good results. The acetabular angle decreased from 45° preoperatively to 21° early postoperatively and at the last follow-up had improved to 18°. In two hips, type 2 avascular necrosis developed. Hip instability was not observed, and no additional surgery was performed.

Conclusion

Tönnis acetabuloplasty is a powerful tool to increase primary stability of the hip when acetabular coverage is inadequate in DDH. Besides its acute correction ability, when performed properly, it has no unwanted effects on acetabular growth. As an isolated procedure or as a part of combined open reduction and/or femoral osteotomy, Tönnis type acetabuloplasty is a safe and effective method.

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Title: Results of Tönnis-type acetabuloplasty in patients with developmental hip dysplasia
Authors: Ugur Gunel
Bulent Daglar
Bulent A. Tasbas
Onder Delialioglu
Kenan Bayrakci
Publication date: 01-11-2012
Publisher: Springer Japan
Published in: Journal of Orthopaedic Science / Issue 6/2012
Print ISSN: 0949-2658
Electronic ISSN: 1436-2023
DOI: https://doi.org/10.1007/s00776-012-0287-8

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Results of Tönnis-type acetabuloplasty in patients with developmental hip dysplasia

Abstract

Aim

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Aim

Materials and methods

Results

Conclusion

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