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Purpose <p>Removal of symptomatic hardware after fracture fixation is common, especially in patients with clavicle fracture. Yet, refracture after hardware removal is a relatively common complication in those patients. The aim of this study was to identify risk factors for clavicle refractures that could be influenced by the surgical treatment provided.</p> Methods <p>All patients from a level one trauma center from 2017 to 2022 were screened for eligibility. Inclusion criteria included hardware removal after plate osteosynthesis of the clavicle, age ≥ 18&#xa0;years, and signed informed consent. Groups were stratified according to occurrence of refracture: no-refracture (NR) vs. refracture (R). Nearest-neighbor matching in a ratio of 5:1 was performed. Parameter investigated included baseline demographics, fracture characteristics and surgical treatment details. A subgroup analysis of only clavicle shaft fractures was performed.</p> Results <p>Sixty patients were included with 50 patients in Group NR and 10 in Group R. Baseline characteristics were comparable between the groups. A subgroup analysis on shaft fractures revealed that a significantly larger working length (number of empty screw holes adjacent to the fracture site) in Group NR (1.94 ± 0.85) compared to the refracture group (1.20 ± 0.92) (p = 0.042). Logistic regression yielded an inverse correlation with the number of empty screw holes to the fracture site and the occurrence of refractures (OR 0.369, 95% CI 0.132–0.873; p = 0.035). Time in situ, lag screw application, plate positioning and the total amount of screws did not affect either of the groups.</p> Conclusion <p>An increased working length in patients with clavicle shaft fractures might be a protective measure for occurrence of refractures after hardware removal.</p>

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Clavicle refractures after hardware removal: are there risk factors? A retrospective cohort study

  • 期刊论文

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  • 发表日期：

    2025年2月21日

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  • Franziska Kessler,
  • Yannik Kalbas,
  • Jan Hambrecht,
  • Victoria Wlach,
  • Sascha Halvachizadeh,
  • Roman Pfeifer,
  • Hans-Christoph Pape,
  • Felix Karl-Ludwig Klingebiel,
  • Christian Hierholzer

摘要

Purpose

Removal of symptomatic hardware after fracture fixation is common, especially in patients with clavicle fracture. Yet, refracture after hardware removal is a relatively common complication in those patients. The aim of this study was to identify risk factors for clavicle refractures that could be influenced by the surgical treatment provided.

Methods

All patients from a level one trauma center from 2017 to 2022 were screened for eligibility. Inclusion criteria included hardware removal after plate osteosynthesis of the clavicle, age ≥ 18 years, and signed informed consent. Groups were stratified according to occurrence of refracture: no-refracture (NR) vs. refracture (R). Nearest-neighbor matching in a ratio of 5:1 was performed. Parameter investigated included baseline demographics, fracture characteristics and surgical treatment details. A subgroup analysis of only clavicle shaft fractures was performed.

Results

Sixty patients were included with 50 patients in Group NR and 10 in Group R. Baseline characteristics were comparable between the groups. A subgroup analysis on shaft fractures revealed that a significantly larger working length (number of empty screw holes adjacent to the fracture site) in Group NR (1.94 ± 0.85) compared to the refracture group (1.20 ± 0.92) (p = 0.042). Logistic regression yielded an inverse correlation with the number of empty screw holes to the fracture site and the occurrence of refractures (OR 0.369, 95% CI 0.132–0.873; p = 0.035). Time in situ, lag screw application, plate positioning and the total amount of screws did not affect either of the groups.

Conclusion

An increased working length in patients with clavicle shaft fractures might be a protective measure for occurrence of refractures after hardware removal.