The Effect of Platelet Rich Plasma on Partial Thickness Rotator Cuff Tears: A Randomized Controlled Trial (PRP)
Rotator Cuff Injuries
About this trial
This is an interventional treatment trial for Rotator Cuff Injuries focused on measuring corticosteroid, platelet rich plasma, tendinopathy, partial thickness tear
Eligibility Criteria
Inclusion Criteria:
- >18 years
- MRI or US evidence of supraspinatus tendinopathy or partial thickness tearing
- symptomatic for minimum of 3 months
- patient has exhausted a course of adequate conservative treatment (including but not limited to home/out patient physical therapy, oral analgesics, and/or shoulder injections)
Exclusion Criteria:
- prior surgical intervention on affected shoulder
- full thickness rotator cuff tear
- concomitant ipsilateral shoulder pathology (i.e. osteoarthritis, inflammatory arthritis)
- confounding cervical neck pain or radiculopathy
- more than 3 previous CS injections
- a CS injection within 6 months of study intervention
- elite level athlete
- worker's compensation case
- litigation or secondary gain issues
- unwilling or unable to provide informed consent or complete study outcomes
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Platelet Rich Plasma (PRP)
Corticosteroid (CS)
Patients had 10ml venous blood drawn. Injection was performed under ultrasound guidance by one of two musculoskeletal radiologists. Injection was 3-5ml at the site of tendon pathology with the remainder of the PRP preparation infiltrated into the subacromial space. A leukocyte-poor preparation was used from a pre-packaged kit (RegenLab, Lausanne, Switzerland). The samples were centrifuged at 1500g for 5 mins to yield approx 5.5ml of 80% platelets at 1.6x concentration. The supernatant was then resuspended by inverting the tube several times and was drawn into a separate 5-ml syringe for subacromial injection.
Patients had 10ml venous blood drawn. Injection was performed under ultrasound guidance by one of two musculoskeletal radiologists. The blood sample was kept for a similar time delay for centrifugation prior to injection, and was then discarded. 1ml of 40-mg/ml triamcinolone was suspended in 2ml of 0.5% bupivicaine. Injection was performed through a lateral subacromial approach after needle fenestration of the supraspinatus tendon under ultrasound visualization. CS was infiltrated into the subacromial bursa and not the tendon itself.