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Published in: International Orthopaedics 6/2024

Open Access 01-04-2024 | External Fixator | Original Paper

Is it possible to achieve multiplanar correction of complex deformities around the knee in children and adolescents using a monolateral external fixator?

Authors: Hassan Elbarbary, Ahmed Abdelmohsen, Abo-Bakr Zein, Amr Arafa, Mohamed Hegazy, Ahmed Yaseen, Ahmed Afifi

Published in: International Orthopaedics | Issue 6/2024

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Abstract

Purpose

To present the technique of correction of multiplanar deformities around the knee in children and adolescents using the monolateral external fixator. Also, to evaluate the results of the technique regarding radiological correction, time to union, and possible complications.

Methods

A total of 29 patients (47 limbs) were prospectively included in the study (14 males and 15 females). Their median age was 13 years (range, 7–17). All patients had at least a 2-plane deformity around the knee which was corrected using a monolateral external fixator. The primary outcome measure was deformity correction (correction of mechanical axis deviation (MAD) in both the coronal and sagittal planes with correction of rotational deformities). The secondary outcome measures included bony union, radiographic, and functional results (assessed by using the Association for the Study and Application of the Method of Ilizarov (ASAMI) score).

Results

The median pre-operative MAD improved from 6.3 to 0.4 cm post-operatively. According to the ASAMI scoring system, the radiographic scoring was excellent in all cases (100%), and the functional scoring was excellent in 22 cases (89.7%) and good in three cases (10.3%).

Conclusion

The simple monolateral fixator can be an effective tool for multiplanar correction of complex deformities around the knee without limb length discrepancy.
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Metadata
Title
Is it possible to achieve multiplanar correction of complex deformities around the knee in children and adolescents using a monolateral external fixator?
Authors
Hassan Elbarbary
Ahmed Abdelmohsen
Abo-Bakr Zein
Amr Arafa
Mohamed Hegazy
Ahmed Yaseen
Ahmed Afifi
Publication date
01-04-2024
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 6/2024
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-024-06149-w

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