Validation of a German Version of the Patient Rated Tennis Elbow Evaluation

Study Overview
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Brief Summary
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The German version of the Patient Rated Tennis Elbow Evaluation (PRTEE) questionnaire is tested for reliability, validity and responsiveness.

Detailed Description
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In this prospective study, patients with lateral epicondylitis will complete the PRTEE before ACP injection, 6 weeks after treatment and 2-11 days later. The statistics will include analyses about reliability, validity and responsiveness.

Official Title
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Validation of a German Version of the Patient Rated Tennis Elbow Evaluation (PRTEE)

Conditions
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Elbow Tendinitis, Elbow, Tennis

Intervention / Treatment
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* Other: Questionnaire Patient Rated Tennis Elbow Evaluation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: At least 18 years of age Diagnosed lateral epicondylitis Receive a first ACP treatment at the Schulthess Klinik Signed informed consent form Exclusion Criteria: Lack of German language skills, which make it impossible to complete the questionnaire Diseases or conditions that would prevent accurate evaluation (e.g. central neurological, psychiatric or metabolic diseases) Legal incompetence Recent operations on the elbow or hand (less than three months ago)

Ages Eligible for Study
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Minimum Age: 18 Years

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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Design Details

Primary Purpose: Other
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Patients with lateral epicondylitis<br>Patients with lateral epicondylitis who are treated with at least one ACP injection. | Other: Questionnaire Patient Rated Tennis Elbow Evaluation<br>* Participants are asked to complete questionnaires at three measurement time points.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Questionnaire Patient Rated Tennis Elbow Evaluation | Participants are asked to complete questionnaires at each of three measurement time points. | Ten Weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sociodemographic data | The socio-demographic data includes the patient's age, sex, duration of symptoms, handedness and disease-related data | Ten Weeks | 
| The Disabilities of Arm Shoulder and Hand (DASH) questionnaire | The patient questionnaire measures impairment of the upper extremity | Ten Weeks | 
| The Patient Rated Elbow Evaluation (PREE) | It measures the elbow specific pain and limitations | Ten Weeks | 
| EQ-5D-5L | general measure of health for clinical and economic questions | Ten Weeks | 
| Patient satisfaction Questionnaire | perceived change regarding their elbow condition | Ten Weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Questionnaire, PRTEE