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Clinical Rheumatology

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01-01-2021 | Knee Osteoarthritis | Original Article

The effects of platelet-rich plasma injection in knee and hip osteoarthritis: a meta-analysis of randomized controlled trials

Authors: Yujie Dong, Butian Zhang, Qi Yang, Jiajing Zhu, Xiaojie Sun

Published in: Clinical Rheumatology | Issue 1/2021

Abstract

Objective

We conducted this updated meta-analysis to evaluate the effects of PRP in patients with knee or hip OA.

Method

PubMed, Embase, and Web of Science were searched to identify randomized controlled trials (RCTs) that compared the efficacy of PRP with other intra-articular injections. The outcomes of interest included Western Ontario and McMaster (WOMAC), Knee Injury and Osteoarthritis Outcome Score (KOOS), Visual Analog Scale (VAS), Harris Hip Score (HHS), and International Knee Documentation Committee (IKDC).

Results

Twenty-four RCTs with 21 at knee OA and three at hip OA were included in this meta-analysis. The PRP injections significantly improved the WOMAC score, VAS score, IKDC score, and HHS score as compared with comparators. The WOMAC pain, stiffness, and physical function scores were also significantly better in the PRP group than in the control group. Most of the evaluated parameters that favored PRP were observed in knee OA but not in hip OA, at short-term (at 1, 2, 3, 6, 12 months) but not long-term follow-up (at 18 months), in RCTs with low risk of bias.

Conclusions

Intra-articular PRP injection provided better effects than other injections for OA patients, especially in knee OA patients, in terms of pain reduction and function improvement at short-term follow-up.

Key Points

• This updated meta-analysis, based on great sample size and high-quality studies, evaluates the effects of PRP in patients with knee or hip OA.

• Intra-articular PRP injection provided better effects than other injections for OA patients.

• Most of the evaluated parameters that favored PRP were observed in knee OA at short term (at 1, 2, 3, 6, 12 months).

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Title: The effects of platelet-rich plasma injection in knee and hip osteoarthritis: a meta-analysis of randomized controlled trials
Authors: Yujie Dong
Butian Zhang
Qi Yang
Jiajing Zhu
Xiaojie Sun
Publication date: 01-01-2021
Publisher: Springer International Publishing
Keywords: Knee Osteoarthritis
Osteoarthritis of the Hip
Osteoarthrosis
Osteoarthrosis
Osteoarthritis of the Hip
Knee Osteoarthritis
Published in: Clinical Rheumatology / Issue 1/2021
Print ISSN: 0770-3198
Electronic ISSN: 1434-9949
DOI: https://doi.org/10.1007/s10067-020-05185-2

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