Monteggia Fractures: Analysis of Patient Reported Outcome Measurements in Correlation to Ulnar Fracture Localization

Study Overview
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Brief Summary
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Patients who had suffered a Monteggia fracture (lesion of the elbow) will be assessed regarding clinical and functional outcome (PROM) after treatment with osteosynthesis.

Detailed Description
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A retrospective, monocentric study will be performed. Patients who underwent surgical treatment after suffering a Monteggia injury or a Monteggia like lesion between 2012 and 2018 will be included. Fractures will classified after Bado and Jupiter, according to the fracture location of the proximal ulna, as well as regarding the potential accompanying ligamentary injury. In a follow-up examination validated patient-reported outcome measures (Disabilities of Arm, Shoulder and Hand Score [DASH], MEPS [Mayo Elbow Performance Score], Oxford Elbow Score [OES], Pain, Subjective Elbow Score) and functionality (range of motion [ROM], posterolateral instability, strength, valgus-/varus-stress) will be evaluated. In addition, treatment strategy and complications will be analysed.

Official Title
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Monteggia Fractures: Analysis of Patient Reported Outcome Measurements in Correlation to Ulnar Fracture Localization

Conditions
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Monteggia's Fracture

Intervention / Treatment
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* Procedure: Osteosynthesis


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with Monteggia fractures treated with osteosynthesis between 2012 and 2018 understanding of German language (written and oral) informed consent Exclusion Criteria: Patients not meeting the above criteria
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Monteggia Cohort<br>Including all Patients. Patients who had suffered a Monteggia fracture and were treated with osteosynthesis | Procedure: Osteosynthesis<br>* Treatment of fracture with open reduction and osteosynthesis<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Disabilities of Arm, Shoulder and Hand Score (DASH) | Evaluation of the subjective function (patient reported outcome) using the DASH-Score, 0-100, best: 0, worst: 100 | Time of Follow-Up assesment, approx. 3-7 years after surgery, avg. 50months | 
| Oxford Elbow Score (OES) | Evaluation of the subjective function (patient reported outcome) using the OES-Score, 0 - 48, best: 48, worst: 0 | Time of Follow-Up assesment, approx. 3-7 years after surgery, avg. 50months | 
| Mayo Elbow Performance Score (MEPS) | Evaluation of the subjective function (patient reported outcome) using the MEPS-Score, 0-100, best: 100, worst: 0 | Time of Follow-Up assesment, approx. 3-7 years after surgery, avg. 50months | 
| Range of Motion (ROM) | Objective functional clinical result. Evaluation of Motion of the Elbow in ° measured via goniometer. Physiological: Flexion/Extension 140/0/0°. | Time of Follow-Up assesment, approx. 3-7 years after surgery, avg. 50months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Ulnar fracture localization (Radiologically) | Localization of ulnar fracture was measured from the proximal tip of the Olecranon to the fracture line on conventional X-ray in order to assess whether further distal fractures have a worse outcome compared to fractures with a close relation to or affecting the elbow joint [cm] | baseline (timepoint of injury) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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elbow, fracture, patient reported outcome