NCT06615999

Brief Summary

The incidence of the olecranon fracture (OF) in adults is around 12 per 100,000 inhabitants per year.1 The anatomical shape of the proximal ulna is largely responsible for the stabilization of the humeroulnar joint and reconstruction is therefore obligatory, but often challenging. Surgical treatment of the olecranon fracture is performed using tension band wiring (TBW) or locking plate fixation (LPF) osteosynthesis. It is not yet clear, which procedure is superior for a specific patient. In future, an individualized and objectified assessment of expected general and fracture-specific complications should enable the treatment to be individually adapted to the patient\'s risk profile. This shall prevent complications, unnecessary treatments, and treatment costs. In the project presented here, the reality of care for surgically treated patients with olecranon fractures will be analyzed using routine data collected by the BARMER health insurance fund. The aim of the study is to analyze differences in the outcome of patients with an olecranon fracture treated with TBW compared to LPF and to identify independent risk factors for unfavorable course.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
15,705

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2011

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2011

Completed
12.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

September 17, 2024

Completed
10 days until next milestone

First Posted

Study publicly available on registry

September 27, 2024

Completed
Last Updated

September 27, 2024

Status Verified

September 1, 2024

Enrollment Period

12.8 years

First QC Date

September 17, 2024

Last Update Submit

September 25, 2024

Conditions

Keywords

Olecranon fracturesurgical treatmentlocked plate fixationtension band wiring

Outcome Measures

Primary Outcomes (6)

  • Revision

    Time from surgery to revision defined above.

    up to 5 years

  • Implant removal (only)

    * Time from surgery to implant removal * Within first 3 months after surgery, an implant removal will also considered as a surgical complication * No SC is allowed to occur within 3 months and on the same day

    up to 5 years

  • Surgical complications (surgical complications)

    Time from surgery of olecranon fracture to surgical complications, with death being considered as a competing risk event.

    up to 5 years

  • In-hospital surgical complication rate (IH-SC)

    surgical complication after surgery during index hospitalization (yes/no)

    through hospital stay, an average of 10 days

  • In-hospital implant-associated complications (IH-IAC)

    In-hospital implant-associated complications after surgery during index hospitalization

    through hospital stay, an average of 10 days

  • In-hospital non-implant associated complications (IH-non-IAC)

    Non-in-hospital implant-associated complications after surgery during index hospitalizationi

    through hospital stay, an average of 10 days

Secondary Outcomes (7)

  • Overall survival (OS)

    up to 5 years

  • 30-day mortality

    30 days

  • Major adverse events (MAE)

    up to 5 years

  • Thromboembolic events

    up to five years

  • Minor outpatient complication

    up to five years

  • +2 more secondary outcomes

Study Arms (4)

Locking Plate fixation for simple fractured OFs (sLPF)

Patients allocated to this treatment group received a locking plate fixation after the first coded diagnosis of simple fractured OF.

Procedure: Simple fracture locked plate fixation

Locking Plate fixation for multi-fragmented OFs (LPF)

Patients allocated to this treatment group received a locking plate fixation after after the first coded diagnosis of multi-fragmented OF.

Procedure: Multi-fragmented locked plate fixation

Tension band wiring for simple fractured OFs (sTBW)

Patients allocated to this treatment group received a tension band wiring fixation after the first coded diagnosis of simple fractured OF.

Procedure: Simple fracture Tension band wiring

Tension band wiring for multi-fragmented OFs (TBW)

Patients allocated to this treatment group received a tension band wiring fixation after the first coded diagnosis of multi-fragmented OF.

Procedure: Multi-fragmented tension band wiring

Interventions

OPS 5-793.27

Tension band wiring for simple fractured OFs (sTBW)

OPS 5-793.k7

Locking Plate fixation for simple fractured OFs (sLPF)

OPS 5-794.17

Tension band wiring for multi-fragmented OFs (TBW)

OPS 5-794.k7

Locking Plate fixation for multi-fragmented OFs (LPF)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All adult patients with an age of 18 years and older with an inpatient treated OF (ICD S52.01) treated with LPF or TBW between 01/2011 and 09/2023 will be included to the evaluations. Patients were grouped by age (i.e. 18-44 years, 45 - 69 years, ≥ 70 years). Younger patients (\<70 years) and older patients (≥ 70 years) will be analyzed in separate studies.

You may qualify if:

  • Inpatient coded diagnosis of olecranon fracture (ICD S52.01)

You may not qualify if:

  • Incomplete basic information
  • Incomplete insurance status within two years before index
  • Previous treatment of olecranon fracture
  • Unclear treatment of olecranon fracture
  • Age \< 18 years
  • Coded polytrauma
  • Bone tumors/ bone metastasis
  • Both sides injured or missing information of surgery side

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Olecranon Fracture

Condition Hierarchy (Ancestors)

Elbow FracturesElbow InjuriesArm InjuriesWounds and InjuriesUlna FracturesForearm InjuriesFractures, Bone

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Consultant

Study Record Dates

First Submitted

September 17, 2024

First Posted

September 27, 2024

Study Start

January 1, 2011

Primary Completion

September 30, 2023

Study Completion

December 31, 2023

Last Updated

September 27, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

The authors confirm that the data utilized in this study cannot be made available in the manuscript, the supplemental files, or in a public repository due to German data protection laws ('Bundesdatenschutzgesetz', BDSG). They are stored on a server of the BARMER Institute for Health System Research, to facilitate replication of the results. In general, access to data of statutory health insurance funds for research purposes is possible only under the conditions defined in German Social Law (SGB V § 287).