Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis

Abstract Purpose The objective of the study was to assess the efficacy of autologous platelet-rich plasma (PRP) injections in the treatment of patellar tendinopathy. Methods The PubMed, MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials databases were searched for clinical t...

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Main Authors: Apurba Barman, Mithilesh K. Sinha, Jagannatha Sahoo, Debasish Jena, Vikas Patel, Suman Patel, Souvik Bhattacharjee, Debanjan Baral
Format: Article
Language:English
Published: BMC 2022-05-01
Series:Knee Surgery & Related Research
Subjects:
Online Access:https://doi.org/10.1186/s43019-022-00151-5
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author Apurba Barman
Mithilesh K. Sinha
Jagannatha Sahoo
Debasish Jena
Vikas Patel
Suman Patel
Souvik Bhattacharjee
Debanjan Baral
author_facet Apurba Barman
Mithilesh K. Sinha
Jagannatha Sahoo
Debasish Jena
Vikas Patel
Suman Patel
Souvik Bhattacharjee
Debanjan Baral
author_sort Apurba Barman
collection DOAJ
description Abstract Purpose The objective of the study was to assess the efficacy of autologous platelet-rich plasma (PRP) injections in the treatment of patellar tendinopathy. Methods The PubMed, MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials databases were searched for clinical trials which compared PRP injection with other ‘active treatment’ interventions (‘Non-PRP’ injection and ‘No-injection’ treatments) or ‘No-active treatment’ interventions. Randomized and non-randomized clinical trials that had been published up to 15 November 2021, were included in the meta-analysis. The primary outcome, pain relief, was measured on a ‘visual analog scale.’ Secondary outcomes were knee functional activities and quality of life (QoL). The PRISMA guidelines were followed throughout the study. Results Eight comparative studies were identified for inclusion in the meta-analysis. Assessment of these studies revealed that there were no significant differences in pain relief, functional outcomes, and QoL in the short, medium, and long term between PRP injection and Non-PRP injection interventions. Similarly, comparison of PRP injection to the No-active treatment intervention showed no differences in short- and medium-term pain relief. However, when PRP injection was compared to the No-injection treatment intervention extracorporeal shock wave therapy (ECWT), the former was found to be more effective in terms of pain relief in the medium term (mean difference [MD] − 1.50; 95% confidence interval [CI] − 2.72 to − 0.28) and long term (MD − 1.70; 95% CI, − 2.90 to − 0.50) and functional outcomes in the medium term (MD 13.0; 95% CI 3.01–22.99) and long term (MD 13.70; 95% CI 4.62–22.78). Conclusions In terms of pain relief and functional outcomes, the PRP injection did not provide significantly greater clinical benefit than Non-PRP injections in the treatment of patellar tendinopathy. However, in comparison with ESWT, there was a significant benefit in favor of PRP injection.
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spelling doaj.art-23facbf1450447aeb628f45738242a772022-12-22T00:44:43ZengBMCKnee Surgery & Related Research2234-24512022-05-0134111510.1186/s43019-022-00151-5Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysisApurba Barman0Mithilesh K. Sinha1Jagannatha Sahoo2Debasish Jena3Vikas Patel4Suman Patel5Souvik Bhattacharjee6Debanjan Baral7Department of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesDepartment of General Surgery, All India Institute of Medical SciencesDepartment of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesDepartment of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesDepartment of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesDepartment of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesDepartment of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesDepartment of Physical Medicine and Rehabilitation, All India Institute of Medical SciencesAbstract Purpose The objective of the study was to assess the efficacy of autologous platelet-rich plasma (PRP) injections in the treatment of patellar tendinopathy. Methods The PubMed, MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials databases were searched for clinical trials which compared PRP injection with other ‘active treatment’ interventions (‘Non-PRP’ injection and ‘No-injection’ treatments) or ‘No-active treatment’ interventions. Randomized and non-randomized clinical trials that had been published up to 15 November 2021, were included in the meta-analysis. The primary outcome, pain relief, was measured on a ‘visual analog scale.’ Secondary outcomes were knee functional activities and quality of life (QoL). The PRISMA guidelines were followed throughout the study. Results Eight comparative studies were identified for inclusion in the meta-analysis. Assessment of these studies revealed that there were no significant differences in pain relief, functional outcomes, and QoL in the short, medium, and long term between PRP injection and Non-PRP injection interventions. Similarly, comparison of PRP injection to the No-active treatment intervention showed no differences in short- and medium-term pain relief. However, when PRP injection was compared to the No-injection treatment intervention extracorporeal shock wave therapy (ECWT), the former was found to be more effective in terms of pain relief in the medium term (mean difference [MD] − 1.50; 95% confidence interval [CI] − 2.72 to − 0.28) and long term (MD − 1.70; 95% CI, − 2.90 to − 0.50) and functional outcomes in the medium term (MD 13.0; 95% CI 3.01–22.99) and long term (MD 13.70; 95% CI 4.62–22.78). Conclusions In terms of pain relief and functional outcomes, the PRP injection did not provide significantly greater clinical benefit than Non-PRP injections in the treatment of patellar tendinopathy. However, in comparison with ESWT, there was a significant benefit in favor of PRP injection.https://doi.org/10.1186/s43019-022-00151-5Platelet-rich plasmaPatellar tendinopathyInjectionsKneePainPatella
spellingShingle Apurba Barman
Mithilesh K. Sinha
Jagannatha Sahoo
Debasish Jena
Vikas Patel
Suman Patel
Souvik Bhattacharjee
Debanjan Baral
Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis
Knee Surgery & Related Research
Platelet-rich plasma
Patellar tendinopathy
Injections
Knee
Pain
Patella
title Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis
title_full Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis
title_fullStr Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis
title_full_unstemmed Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis
title_short Platelet-rich plasma injection in the treatment of patellar tendinopathy: a systematic review and meta-analysis
title_sort platelet rich plasma injection in the treatment of patellar tendinopathy a systematic review and meta analysis
topic Platelet-rich plasma
Patellar tendinopathy
Injections
Knee
Pain
Patella
url https://doi.org/10.1186/s43019-022-00151-5
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