Radial Head Arthroplasty A Clinical and Radiological Comparison of Monopolar and Bipolar Radial Head Arthroplasty

Study Overview
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Brief Summary
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Fractures of the radial head are among the most common fractures in the elbow and represent one-third of all elbow fractures.This retrospective cohort study was performed between 2004 and 2014 at Sundsvall and Umeå University hospital, Sweden. All patients who were operated on between 2004 and 2014 with a radial head arthroplasty for an acute or sequelae due to a caput radii fracture.The aim of this study is to evaluate clinical or radiological differences between patients treated with a unipolar or bipolar radial head arthroplasty.

Official Title
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Radial Head Arthroplasty: A Clinical and Radiological Comparison of Monopolar and Bipolar Radial Head Arthroplasty

Conditions
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Radial Head Fracture, Elbow Fracture, Arthroplasty Complications

Intervention / Treatment
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* Procedure: Type of radial head arthroplasty


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All patients treated with a radial head arthroplasty during the study period. Exclusion Criteria: None
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 |
| --- | --- |
| Bipolar radial head arthroplasty<br>Patients treated with bipolar head arthroplasty due to radial head fracture | Procedure: Type of radial head arthroplasty<br>* Patiens are either treated with a unipolar or a bipolar radial head arthroplasty. At Sundsvall hospital all patients were treated with a unipolar and at Umeå university hospital all patients were treated with a bipolar arthroplasty.<br>|
| Unipolar radial head arthroplasty<br>Patients treated with unipolar head arthroplasty due to radial head fracture | Procedure: Type of radial head arthroplasty<br>* Patiens are either treated with a unipolar or a bipolar radial head arthroplasty. At Sundsvall hospital all patients were treated with a unipolar and at Umeå university hospital all patients were treated with a bipolar arthroplasty.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| QuickDASH | Patients reported outcome measure. An abbreviated version of the Disabilities the Arm, Shoulder and Hand (DASH) questionnaire. Higher score indicate a greater level of disability, lower scores indicate a lower level of disability. The score ranges from 0 (no disability) to 100 (most severe disability). | 2-16 years postoperatively | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain | Visual analogue scale. Range 0-10. Higher value indicate more intensive pain. | 2-16 years postoperatively | 
| Range of motion | Rang of elbow motion. Measured in grades. Supination, pronation, extension and flexion were measured. | 2-16 years postoperatively | 
| Reoperation | Number of patients needing revision surgery | 2-16 years postoperatively | 
| Radiographic evaluation | Radiographic evaluation of the prosthesis. The presence of radiolucent lines, loosening of the prosthesis. | 2-16 years postoperatively |