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Study aim
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Evaluation of the efficacy of platelet-rich plasma injection compared to corticosteroid injection in patients with frozen shoulder
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Design
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Clinical trial with control group, with parallel groups, double blind, randomized, phase 3 on 75 patients. Excel software rand function was used for randomization.
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Settings and conduct
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Patients with frozen shoulder disease referred to the Shafa Yahyaian Hospital will be randomly assigned into the three groups: platelet-rich plasma injection, corticosteroid injection, and normal saline injection. The efficacy of platelet-rich plasma will be compared with that of corticosteroids. The participant, the injector, and the outcome evaluator will not be informed of the treatment offered to the patients.
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Participants/Inclusion and exclusion criteria
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Inclusion criteria:
Diagnosis of frozen shoulder disease by an orthopedic surgeon
Age 18 to 80 years
Providing Inform consent to participate in the study
Exclusion criteria:
History of frozen shoulder
Other shoulder-related diseases include calcified tendonitis, rotator cuff arthropathy, severe osteoarthritis of the shoulder, or a history of recurrent or late shoulder dislocation
History of shoulder surgery
Accompanying musculoskeletal patients including severe osteoarthritis, rheumatoid arthritis, fibromyalgia, and etc.
Recent development of severe psychiatric disorders such as psychosis, mania, suicide and major cognitive impairment depression such as mental retardation or dementia
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Intervention groups
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The first intervention group will receive 8 ml of platelet-rich plasma intra-articularly.
The second intervention group will receive 2 ml of methylprednisolone acetate (40 mg) combined with 2 ml of 2% lidocaine and 11 ml of normal saline intra-articularly.
The control group will receive 13 ml of normal saline combined with 2 ml of 2% lidocaine internally.
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Main outcome variables
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Shoulder pain, Shoulder function