Accuracy of Needle Placement Into The Subacromial Space of The Shoulder

Study Overview
=================
Brief Summary
-----------------
This study attempts to determine the most accurate route for injection of the subacromial bursa in patients with rotator cuff tendonitis. Typically, in medical practice, one of the routes of injection is used. It has not been determined if one route is superior, or if all routes are equal in delivering medication into the subacromial bursa, which sits on top of the rotator cuff tendons.

Detailed Description
-----------------
Patients with a diagnosis of rotator cuff tendonitis, having failed other non-operative measures, are offered an injection of steroid and local anesthetic to relieve their pain. This is standard treatment. In this study, patients are prospectively randomized to receive their injection by one of the three commonly used routes: anterior, posterior, or lateral. Accuracy of the injection is determined by including a small amount of contrast dye in the injection which will make the injection visible on post-injection radiographs.

Official Title
-----------------
Accuracy of Needle Placement Into The Subacromial Space of The Shoulder

Conditions
-----------------
Rotator Cuff Tendonitis

Intervention / Treatment
-----------------
* Procedure: Injection of Subacromial Bursa


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: rotator cuff tendinitis Exclusion Criteria: diabetes allergy to contrast dye renal disease pregnancy frozen shoulder

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Anterior injection Route<br>Group of patients injected with medication using the anterior route | Procedure: Injection of Subacromial Bursa<br>* Injection of steroid and anesthetic to relieve pain<br>|
| Active Comparator: Posterior Injection<br>Group of patients receiving injection through a posterior route | Procedure: Injection of Subacromial Bursa<br>* Injection of steroid and anesthetic to relieve pain<br>|
| Active Comparator: Lateral Injection<br>Group of patients receiving subacromial injection through a lateral route | Procedure: Injection of Subacromial Bursa<br>* Injection of steroid and anesthetic to relieve pain<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Radiographic e Radiographic Evidence of Successful Subacromial Injection | After injection of the subacromial bursa, all patients had two view radiographs performed within one hour to assess the accuracy of the injections | One-hour post injection | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Tendonitis, Rotator Cuff, Shoulder, Injection