Analysing plate fixation of a comminuted fracture of the
proximal ulna in relation to the elbow joint: a finite element
study

J 2025

Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study

SAFRAN, J.; Tomáš PAVLACKÝ; P. MARCIAN; Radim HERŮFEK; Radek VESELÝ et al.

Základní údaje

Originální název

Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study

Autoři

SAFRAN, J.; Tomáš PAVLACKÝ; P. MARCIAN; Radim HERŮFEK a Radek VESELÝ

Vydání

JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH, LONDON, BMC, 2025, 1749-799X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30211 Orthopaedics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.800 v roce 2024

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/25:00141736

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

Proximal ulna comminuted fracture; Elbow joint; Olecranon fracture; Finite element analysis; Locking compression plate; Interfragmentary motion

Štítky

14110711, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 6. 8. 2025 10:05, Mgr. Tereza Miškechová

Anotace

V originále

This study investigated the biomechanical behavior of four different screw configurations used to fix comminuted proximal ulna fractures with a locking compression plate (LCP), via a detailed finite element model based on realistic anatomical geometry. The model incorporated realistic anatomical geometry including both cortical and cancellous bone, soft tissue constraints, and loading conditions representing the physiological self-weight of the forearm, with the humerus fixed at its proximal end. The stress distribution on the plate, strain intensity within the bone tissue, and interfragmentary motion (IFM) between fracture fragments were evaluated for each configuration. The results indicate that all the tested configurations provide adequate stability under normal loading conditions, with no risk of material failure. However, excessive stress concentrations were observed in specific screw regions depending on the configuration, particularly when proximal screws anchoring the olecranon (e.g. screws 2 and 3 in Variant 3) were omitted. Strain analysis revealed moderate physiological bone loading across variants, whereas IFM assessment highlighted the importance of securing the coronoid and apical fragments to prevent compromised healing. These findings suggest that a specific reductions in osteosynthetic material, such as omitting certain diaphyseal screws while maintaining crucial olecranon and coronoid fixation, may provide sufficient fracture stabilisation under the modelled conditions, potentially minimising implant-related complications. This modelling approach offers a valuable tool for preclinical assessment of osteosynthesis strategies and supports future comparative research on fixation methods with varying biomechanical properties.

Citovat

SAFRAN, J.; Tomáš PAVLACKÝ; P. MARCIAN; Radim HERŮFEK a Radek VESELÝ. Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study. JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH. LONDON: BMC, 2025, roč. 20, č. 1, s. 1-16. ISSN 1749-799X. Dostupné z: https://doi.org/10.1186/s13018-025-06031-4.

@article{2511218,
   author = {Safran, J. and Pavlacký, Tomáš and Marcian, P. and Herůfek, Radim and Veselý, Radek},
   article_location = {LONDON},
   article_number = {1},
   doi = {https://doi.org/10.1186/s13018-025-06031-4},
   keywords = {Proximal ulna comminuted fracture; Elbow joint; Olecranon fracture; Finite element analysis; Locking compression plate; Interfragmentary motion},
   language = {eng},
   issn = {1749-799X},
   journal = {JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH},
   title = {Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study},
   url = {https://josr-online.biomedcentral.com/articles/10.1186/s13018-025-06031-4#change-history},
   volume = {20},
   year = {2025}
}

TY  - JOUR
ID  - 2511218
AU  - Safran, J. - Pavlacký, Tomáš - Marcian, P. - Herůfek, Radim - Veselý, Radek
PY  - 2025
TI  - Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study
JF  - JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
VL  - 20
IS  - 1
SP  - 1-16
EP  - 1-16
PB  - BMC
SN  - 1749799X
KW  - Proximal ulna comminuted fracture
KW  - Elbow joint
KW  - Olecranon fracture
KW  - Finite element analysis
KW  - Locking compression plate
KW  - Interfragmentary motion
UR  - https://josr-online.biomedcentral.com/articles/10.1186/s13018-025-06031-4#change-history
N2  - This study investigated the biomechanical behavior of four different screw configurations used to fix comminuted proximal ulna fractures with a locking compression plate (LCP), via a detailed finite element model based on realistic anatomical geometry. The model incorporated realistic anatomical geometry including both cortical and cancellous bone, soft tissue constraints, and loading conditions representing the physiological self-weight of the forearm, with the humerus fixed at its proximal end. The stress distribution on the plate, strain intensity within the bone tissue, and interfragmentary motion (IFM) between fracture fragments were evaluated for each configuration. The results indicate that all the tested configurations provide adequate stability under normal loading conditions, with no risk of material failure. However, excessive stress concentrations were observed in specific screw regions depending on the configuration, particularly when proximal screws anchoring the olecranon (e.g. screws 2 and 3 in Variant 3) were omitted. Strain analysis revealed moderate physiological bone loading across variants, whereas IFM assessment highlighted the importance of securing the coronoid and apical fragments to prevent compromised healing. These findings suggest that a specific reductions in osteosynthetic material, such as omitting certain diaphyseal screws while maintaining crucial olecranon and coronoid fixation, may provide sufficient fracture stabilisation under the modelled conditions, potentially minimising implant-related complications. This modelling approach offers a valuable tool for preclinical assessment of osteosynthesis strategies and supports future comparative research on fixation methods with varying biomechanical properties.
ER  -

SAFRAN, J.; Tomáš PAVLACKÝ; P. MARCIAN; Radim HERŮFEK a Radek VESELÝ. Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study. \textit{JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH}. LONDON: BMC, 2025, roč.~20, č.~1, s.~1-16. ISSN~1749-799X. Dostupné z: https://doi.org/10.1186/s13018-025-06031-4.

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