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Subject Area

Obstetrics and Gynecology

Article Type

Review

Abstract

Objective The aim of this study was to evaluate results of intra-articular injection of plasma sample rich in platelets for the treatment of knee osteoarthritis (OA). Background OA is a progressive, chronic condition leading to pain and loss of function that reduce patients' quality of life. Materials and methods The study was performed on 30 knees of 30 patients with age 30–65 years. All of the patients presented with knee OA grade I, II, and III and were treated with two intra-articular platelet-rich plasma (PRP) injections with three weeks interval. Preparation was done by centrifugation of 50 ml blood in two separate cycles, finally resulting in 5 ml of PRP then get activated by calcium chloride (CaCl2) at concentration of 50 μl/1 ml PRP, added just before injection. Western Ontario and McMaster universities score was used for clinical evaluation. Complications and adverse events were also recorded. Results Mean age of patients was 52 years. All of them were followed up to 12 months. The clinical results were classified on subjective base and were graded as excellent in 19 (63.3%) patients, good in six (20%) patients, and poor in five (16.7%) patients. No complications were noted. There was significant significance between BMI and clinical success (P = 0.000). The study showed significant association between grade of OA and clinical success (P = 0.008). Conclusion Maximal improvement occurred in a month and continued above basal levels in 12 months follow-up, especially in the young individuals. These findings indicate that treatment with PRP injections can reduce pain and improve knee function and quality of life with short-term efficacy.

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