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Related Experiment Video

Updated: Mar 29, 2026

Preparation, Procedures and Evaluation of Platelet-Rich Plasma Injection in the Treatment of Knee Osteoarthritis

Preparation, Procedures and Evaluation of Platelet-Rich Plasma Injection in the Treatment of Knee Osteoarthritis

Published on: January 4, 2019

EFFECT OF PLATELET RICH PLASMA CONCENTRATION ON SKELETAL MUSCLE REGENERATION: AN EXPERIMENTAL STUDY.

M Cianforlini¹, M Mattioli-Belmonte¹, S Manzotti¹

¹Department of Clinical and Molecular Sciences, School of Medicine, Università Politecnica delle Marche, Ancona, Italy.

Journal of Biological Regulators and Homeostatic Agents

|December 15, 2015

Summary

This summary is machine-generated.

Platelet-rich plasma (PRP) effectively promotes muscle healing by enhancing regeneration and blood vessel growth. This study shows PRP improves muscle repair in rats, with benefits increasing with higher concentrations.

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Area of Science:

Orthopedics
Regenerative Medicine
Sports Medicine

Background:

Skeletal muscle injuries are prevalent, causing significant pain and disability.
Current treatments for muscle injuries lack proven efficacy in controlled trials.
Platelet-rich plasma (PRP) offers a potential therapeutic approach using autologous growth factors.

Purpose of the Study:

To investigate the efficacy of different platelet-rich plasma (PRP) concentrations on muscle healing.
To evaluate PRP's effects on muscle regeneration, neovascularization, and fibrosis.
To assess the dose-dependent response of PRP in promoting skeletal muscle repair.

Main Methods:

Created unilateral muscle lesions in Wistar rats (longissimus dorsi).
Administered intramuscular injections of two different PRP concentrations 24 hours post-injury.
Utilized histological, immunohistochemical, and histomorphometric analyses at 3, 15, and 60 days post-surgery.

Main Results:

PRP treatment demonstrated improved muscle regeneration compared to controls.
Increased neovascularization was observed in PRP-treated muscles.
A dose-dependent reduction in fibrosis was noted, alongside enhanced regeneration.

Conclusions:

Platelet-rich plasma (PRP) positively influences skeletal muscle healing.
PRP promotes muscle regeneration and neovascularization while reducing fibrosis.
Further research is needed to evaluate PRP's impact on pain and functional recovery.