Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report

Patella fractures correspond to 1 % of all fractures. In recent decades, the role of the patella in increasing the lever arm of the quadriceps has been well defined. Surgical treatment is indicated for open fractures, those that compromise the function of the extensor mechanism, those with a joint g...

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Autores principales: Araujo, José Torrealba, Hernández, Mauricio Núñez, Romero, David Quilodrán, Encina, Lizandra Rojas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10238869/
https://www.ncbi.nlm.nih.gov/pubmed/37274544
http://dx.doi.org/10.1016/j.tcr.2023.100851
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author Araujo, José Torrealba
Hernández, Mauricio Núñez
Romero, David Quilodrán
Encina, Lizandra Rojas
author_facet Araujo, José Torrealba
Hernández, Mauricio Núñez
Romero, David Quilodrán
Encina, Lizandra Rojas
author_sort Araujo, José Torrealba
collection PubMed
description Patella fractures correspond to 1 % of all fractures. In recent decades, the role of the patella in increasing the lever arm of the quadriceps has been well defined. Surgical treatment is indicated for open fractures, those that compromise the function of the extensor mechanism, those with a joint gap >5 mm and/or joint incongruity >3 mm, a group that corresponds to around 30 % of the total. Anatomical reduction and stabilization with various types of modified tension bands is the most frequently used procedure. Biomechanical studies have shown that stabilization through the use of a tension band replacing the Kirchner wires with cannulated screws presents adequate resistance to fracture displacement and provides greater stability than the classic configuration, maintaining the theoretical principle of converting the forces of anterior tension of the patella generated by the quadriceps in compression at the level of the articular surface. A case of a patient who required reduction and osteosynthesis of an exposed patella fracture, associated with an extensor mechanism lesion, is presented. Clinical and radiographic characteristics of the patient and the resolution of the case are described.
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spelling pubmed-102388692023-06-04 Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report Araujo, José Torrealba Hernández, Mauricio Núñez Romero, David Quilodrán Encina, Lizandra Rojas Trauma Case Rep Case Report Patella fractures correspond to 1 % of all fractures. In recent decades, the role of the patella in increasing the lever arm of the quadriceps has been well defined. Surgical treatment is indicated for open fractures, those that compromise the function of the extensor mechanism, those with a joint gap >5 mm and/or joint incongruity >3 mm, a group that corresponds to around 30 % of the total. Anatomical reduction and stabilization with various types of modified tension bands is the most frequently used procedure. Biomechanical studies have shown that stabilization through the use of a tension band replacing the Kirchner wires with cannulated screws presents adequate resistance to fracture displacement and provides greater stability than the classic configuration, maintaining the theoretical principle of converting the forces of anterior tension of the patella generated by the quadriceps in compression at the level of the articular surface. A case of a patient who required reduction and osteosynthesis of an exposed patella fracture, associated with an extensor mechanism lesion, is presented. Clinical and radiographic characteristics of the patient and the resolution of the case are described. Elsevier 2023-05-22 /pmc/articles/PMC10238869/ /pubmed/37274544 http://dx.doi.org/10.1016/j.tcr.2023.100851 Text en © 2023 The Authors. Published by Elsevier Ltd. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
Araujo, José Torrealba
Hernández, Mauricio Núñez
Romero, David Quilodrán
Encina, Lizandra Rojas
Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report
title Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report
title_full Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report
title_fullStr Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report
title_full_unstemmed Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report
title_short Osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: Case report
title_sort osteosynthesis of a patellar fracture with repair of the knee extensor mechanism: case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10238869/
https://www.ncbi.nlm.nih.gov/pubmed/37274544
http://dx.doi.org/10.1016/j.tcr.2023.100851
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