Study Purpose: To evaluate the safety and performance of Augment Rotator Cuff as a primary surgical treatment for full thickness rotator cuff tears. The hypothesis is that Augment Rotator Cuff will be easy to deliver as an inter-positional graft placed between the rotator cuff tendon and the humeral head providing further enhanced tendon to bone healing without adding any additional safety risk to the patient. Study Rationale: To evaluate the safety and performance Augment™ Rotator Cuff in surgical intervention of a torn rotator cuff and to obtain preliminary data to support the rationale for a subsequent pivotal clinical trial.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
31
rhPDGF-BB and bovine collagen matrix
standard suture repair
Fowler Kennedy Sports Medicine Clinic
London, Ontario, Canada
Hand and Upper Limb Clinic - St. Joseph's Health Care London
London, Ontario, Canada
Ottawa Hospital
Ottawa, Ontario, Canada
St. Michaels Hospital
Toronto, Ontario, Canada
Magnetic Resonance Imaging (MRI)
The scans were evaluated for degree of re-tears (no re-tears, partial or complete re-tear) by an independent radiologist to assess device integrity and surgical treatment of the rotator cuff tear.
Time frame: 24 weeks
Disabilities of the Arm, Shoulder and Hand (DASH)
a self-report questionnaire evaluates the subjects' symptoms and ability to perform activities of daily living, athletic activities and homemaking/work activities. The DASH consists mainly of a 30-item disability/symptom scale, scored 0 (no disability) to 100
Time frame: 24 weeks
Western Ontario Rotator Cuff Index (WORC)
a self-report questionnaire specifically designed to evaluate disability in persons with pathology of the rotator cuff. Each question uses a visual analogue scale (VAS) - which is a straight line, representing a 100-point scale, ranging from 0-100, with a higher score representing lower quality of life.
Time frame: 24 weeks
Constant-Murley Shoulder Outcome Score (CSS)
to assess the shoulder and determine at minimum the range of motion (ROM), external rotation and internal rotation, and power score. The Constant-Murley score (CMS) is a 100-points scale composed of a number of individual parameters. These parameters define the level of pain and the ability to carry out the normal daily activities of the patient. The test is divided into four subscales: pain (15 points), activities of daily living (20 points), strength (25 points) and range of motion: forward elevation, external rotation, abduction and internal rotation of the shoulder (40 points). The higher the score, the higher the quality of the function.
Time frame: 24 weeks
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