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Published in: BMC Musculoskeletal Disorders 1/2022

Open Access 01-12-2022 | Nerve Injury | Research

Predictive factors for open reduction of flexion-type supracondylar fracture of humerus in children

Authors: Jun Sun, Jing Shan, Lian Meng, Tianjing Liu, Enbo Wang, Guoqiang Jia

Published in: BMC Musculoskeletal Disorders | Issue 1/2022

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Abstract

Objective

The incidence of open reduction and internal fixation (ORIF) in flexion-type supracondylar humerus fractures (SCHF) in children is significantly higher than that of extension-type fractures. This study aimed to identify risk factors for ORIF in flexion-type SCHF.

Methods

One hundred seventy-one patients with Wilkins type III flexion-type SCHF from January 2012 to December 2021 were retrospectively enrolled in a tertiary paediatric hospital. Patients were divided into ORIF group versus closed reduction and internal fixation (CRIF) group. Then, patients data of age, sex, injury side, obesity, deviation of displacement, fracture level, rotation, nerve injury, and delay from injury to surgery were reviewed. Univariate analysis and multivariate logistic regression were used to identify independent risk factors and odds ratios (OR) of ORIF.

Results

Overall, 171 children with type III flexion-type SCHF were analyzed (average aged 7.9 ± 2.8 years). Displacement was lateral in 151 cases, medial in 20. 20 cases had combined ulnar nerve injury. The failed closed reduction rate was 20%. Univariate analysis indicated age, distal fracture fragment rotation, and ulnar nerve injury were significantly associated with ORIF. (P = 0.047, P = 0.009, and P = 0.001, respectively). Multivariate logistic regression analysis showed that distal fracture fragment rotation (OR, 3.3; 95%CI:1.1–9.5; P = 0.028) and ulnar nerve injury (OR, 6.4; 95%CI:2.3–18.3; P = 0.001) were independent risk factors; however, the age was not an independent one (OR, 1.5; 95%CI:0.6–3.5; P = 0.397) for ORIF in the Wilkins type III flexion-type SCHF.

Conclusion

Distal fracture fragment malrotation on initial x-rays and ulnar nerve injury were significant risk factors for ORIF in Wilkins type III flexion-type SCHF. Surgeons should prepare tourniquets or other open reduction instruments when treating these types of fractures.

Level of evidence

Level IV
Appendix
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Metadata
Title
Predictive factors for open reduction of flexion-type supracondylar fracture of humerus in children
Authors
Jun Sun
Jing Shan
Lian Meng
Tianjing Liu
Enbo Wang
Guoqiang Jia
Publication date
01-12-2022
Publisher
BioMed Central
Keyword
Nerve Injury
Published in
BMC Musculoskeletal Disorders / Issue 1/2022
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-022-05798-5

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