BackgroundIn this study, we compared the functional outcome of intra-articular injection of corticosteroid versus platelet-rich plasma (PRP) in patients with frozen shoulder (FS).
MethodologyThis randomized controlled trial was conducted in the Department of Orthopedics, Mayo Hospital, Lahore, from January 2018 to December 2018. A total of 202 patients with FS aged 40 to 70 years were included. Patients with medical comorbidities such as chronic liver disease (assessed on history and serum bilirubin >2.0 mg/dl), chronic renal failure (assessed on history and serum creatinine >1.5 mg/dL), and chronic steroid use were excluded. Employing an anterior approach, subjects in groups A and B received one intra-articular injection of 2 mL PRP and 2 mL (80 mg) methylprednisolone acetate, respectively. Age, gender, duration of disease, and pre-injection and post-injection range of motion (ROM) (flexion, extension, abduction, external rotation, and internal rotation) were assessed. The University of California at Los Angeles Shoulder Score (UCLA) and visual analog scale (VAS) scores were measured and compared before and after the injection. All patients were followed at regular intervals post-therapy and the final functional outcome was measured after 12 weeks of therapy.
ResultsData were analyzed using SPSS version 20 (IBM Corp., Armonk, NY, USA). A p-value of 0.05 was considered significant when comparing flexion, abduction, external rotation, and internal rotation in both groups using the independent t-test. The ROM in group A (intra-articular PRP) improved significantly (p < 0.05) after injection compared to group B (intra-articular corticosteroid).
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