Acta chirurgiae orthopaedicae
et traumatologiae Čechoslovaca

Acta Chir Orthop Traumatol Cech. 2023; 90(6):408-415 | DOI: 10.55095/achot2023/049

Porovnání různých fixačních konfigurací u různých typů dětských vysokých suprakondylárních zlomenin humeru: analýza metodou konečných prvkůPůvodní práce

M. BOZOĞLAN¹, M. KUMBARACI¹, A. ÖZER², A. TURGUT¹

¹ University of Health Sciences, İzmir Tepecik Health Research Center, Orthopedics and Traumatology Department, Izmir, Turkey

² Yozgat Bozok University, Faculty of Engineering, Mechanical Engineering, Yozgat, Turkey

Purpose of the study: The purpose of this study is to compare the stability of different fixation methods in high pediatric supracondylar humerus fractures with a finite element analysis method.

Material and methods: Transverse, lateral oblique, and medial oblique fracture models were created in a ten years old boy's distal humerus. Eight different fixation methods were applied to each fracture model. Displacement of the fracture models was measured under the translational and torsional forces.

Results: In the transverse fracture model; the 6^th method provided the best stability in internal rotation, external rotation, and extension loading. In varus 7^th method, valgus 8^th, and flexion the 5^th and 2^nd methods had the best stability. In the lateral oblique fracture model; the 7^th method had the best stability in all loading directions except flexion and the 6^th method had the best stability in flexion and had acceptable values in all other directions except valgus and external rotation. In the medial oblique fracture model; the 6^th method had the best stability in all directions except varus. 3^rd method was the best fixation type against varus and the second stable fixation type in all other directions.

Conclusions: Combining lateral antegrade with lateral retrograde wire and lateral condylomedullary wire provides strong stability in the lateral oblique fracture. Two condylomedullary Kirchner wires and one antegrade lateral wire results in a strong stability in the medial oblique fracture. Medial-lateral condylomedullary and lateral antegrade wires provided the best stability against varus in transverse and lateral oblique fractures.

Klíčová slova: high pediatric supracondylar humerus fracture, percutaneous fixation method, metaphyseal-diaphyseal junction, finite element analysis.

Zveřejněno: 1. prosinec 2023  Zobrazit citaci