The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model

Objective: The aim of the present study was to evaluate the effects of PRP on Achilles tendon healing in rabbits during the inflammatory, proliferative, and remodeling phases by histological examination and quantitative assessments. Methods: Fifty mature male Japanese albino rabbits with severed Ach...

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Main Authors: Masaki Takamura, Toshito Yasuda, Atsushi Nakano, Hiroaki Shima, Masashi Neo
Format: Article
Language:English
Published: AVES 2017-01-01
Series:Acta Orthopaedica et Traumatologica Turcica
Online Access:http://www.sciencedirect.com/science/article/pii/S1017995X16303509
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author Masaki Takamura
Toshito Yasuda
Atsushi Nakano
Hiroaki Shima
Masashi Neo
author_facet Masaki Takamura
Toshito Yasuda
Atsushi Nakano
Hiroaki Shima
Masashi Neo
author_sort Masaki Takamura
collection DOAJ
description Objective: The aim of the present study was to evaluate the effects of PRP on Achilles tendon healing in rabbits during the inflammatory, proliferative, and remodeling phases by histological examination and quantitative assessments. Methods: Fifty mature male Japanese albino rabbits with severed Achilles tendons were divided into two equal groups and treated with platelet-rich plasma (PRP) or left untreated. Tendon tissue was harvested at 1, 2, 3, 4, and 6 weeks after treatment, and sections were stained with hematoxylin-eosin and monoclonal antibodies against CD31 and type I collagen. Results: Collagen fibers proliferated more densely early after severance, and subsequent remodeling of the collagen fibers and approximation of normal tendinous tissue occurred earlier in the PRP group than in the control group. The fibroblast number was significantly higher in the PRP group than in the control group at 1 and 2 weeks. Similarly, the area ratio of CD31-positive cells was significantly higher in the PRP group than in the control group at 1 and 2 weeks. Positive staining for type I collagen was more intense in the PRP group than in the control group after 3 weeks, indicating tendon maturation. Conclusion: Administration of PRP shortened the inflammatory phase and promoted tendon healing during the proliferative phase. Keywords: Achilles tendon, Growth factor, Platelet-rich plasma, Rabbit, Tendon healing
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spelling doaj.art-c3e1995f85bc408fbce2df3411c840242023-02-15T16:10:38ZengAVESActa Orthopaedica et Traumatologica Turcica1017-995X2017-01-015116572The effect of platelet-rich plasma on Achilles tendon healing in a rabbit modelMasaki Takamura0Toshito Yasuda1Atsushi Nakano2Hiroaki Shima3Masashi Neo4Corresponding author. Department of Orthopedic Surgery, Osaka Medical College, 2-7 Daigaku-Machi, Takatsuki, Osaka 569-8686, Japan. Fax: +81 726 83 6265.; Department of Orthopedic Surgery, Osaka Medical College, Osaka, JapanDepartment of Orthopedic Surgery, Osaka Medical College, Osaka, JapanDepartment of Orthopedic Surgery, Osaka Medical College, Osaka, JapanDepartment of Orthopedic Surgery, Osaka Medical College, Osaka, JapanDepartment of Orthopedic Surgery, Osaka Medical College, Osaka, JapanObjective: The aim of the present study was to evaluate the effects of PRP on Achilles tendon healing in rabbits during the inflammatory, proliferative, and remodeling phases by histological examination and quantitative assessments. Methods: Fifty mature male Japanese albino rabbits with severed Achilles tendons were divided into two equal groups and treated with platelet-rich plasma (PRP) or left untreated. Tendon tissue was harvested at 1, 2, 3, 4, and 6 weeks after treatment, and sections were stained with hematoxylin-eosin and monoclonal antibodies against CD31 and type I collagen. Results: Collagen fibers proliferated more densely early after severance, and subsequent remodeling of the collagen fibers and approximation of normal tendinous tissue occurred earlier in the PRP group than in the control group. The fibroblast number was significantly higher in the PRP group than in the control group at 1 and 2 weeks. Similarly, the area ratio of CD31-positive cells was significantly higher in the PRP group than in the control group at 1 and 2 weeks. Positive staining for type I collagen was more intense in the PRP group than in the control group after 3 weeks, indicating tendon maturation. Conclusion: Administration of PRP shortened the inflammatory phase and promoted tendon healing during the proliferative phase. Keywords: Achilles tendon, Growth factor, Platelet-rich plasma, Rabbit, Tendon healinghttp://www.sciencedirect.com/science/article/pii/S1017995X16303509
spellingShingle Masaki Takamura
Toshito Yasuda
Atsushi Nakano
Hiroaki Shima
Masashi Neo
The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model
Acta Orthopaedica et Traumatologica Turcica
title The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model
title_full The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model
title_fullStr The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model
title_full_unstemmed The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model
title_short The effect of platelet-rich plasma on Achilles tendon healing in a rabbit model
title_sort effect of platelet rich plasma on achilles tendon healing in a rabbit model
url http://www.sciencedirect.com/science/article/pii/S1017995X16303509
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