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

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 o...

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Bibliographic Details
Published in:International orthopaedics 2024-06, Vol.48 (6), p.1427-1438
Main Authors: Elbarbary, Hassan, Abdelmohsen, Ahmed, Zein, Abo-Bakr, Arafa, Amr, Hegazy, Mohamed, Yaseen, Ahmed, Afifi, Ahmed
Format: Article
Language:English
Subjects:
Adolescent
Child
External Fixators
Female
Humans
Ilizarov Technique - instrumentation
Knee Joint - abnormalities
Knee Joint - diagnostic imaging
Knee Joint - surgery
Male
Medicine
Medicine & Public Health
Original Paper
Orthopedics
Prospective Studies
Radiography - methods
Treatment Outcome
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Summary: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.
ISSN:0341-2695
1432-5195
DOI:10.1007/s00264-024-06149-w