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19 papers 25 to 100 followers
You-zhi Cai, Chi Zhang, Xiang-jin Lin
BACKGROUND: The use of platelet-rich plasma (PRP) is an innovative clinical therapy, especially in arthroscopic rotator cuff repair. The purpose of this study was to compare the clinical improvement and tendon-to-bone healing with and without PRP therapy in arthroscopic rotator cuff repair. METHODS: A systematic search was done in the major medical databases to evaluate the studies using PRP therapy (PRP+) or with no PRP (PRP-) for the treatment of patients with rotator cuff tears...
December 2015: Journal of Shoulder and Elbow Surgery
Elisa Assirelli, Giuseppe Filardo, Erminia Mariani, Elizaveta Kon, Alice Roffi, Franca Vaccaro, Maurilio Marcacci, Andrea Facchini, Lia Pulsatelli
PURPOSE: To analyse the modifications induced by two different platelet-rich plasma (PRP) preparations on osteoarthritis (OA) synoviocytes, by documenting changes in gene expression of factors involved in joint physiopathology. METHODS: OA synoviocytes were cultured for 7 days in medium with different concentrations of either P-PRP (a pure platelet concentrate without leucocytes but with a limited number of platelets), L-PRP (a higher platelet concentrate containing leucocytes) or platelet-poor plasma (PPP)...
September 2015: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Wichan Kanchanatawan, Alisara Arirachakaran, Kornkit Chaijenkij, Niti Prasathaporn, Manusak Boonard, Peerapong Piyapittayanun, Jatupon Kongtharvonskul
PURPOSE: To compare the clinical outcomes of osteoarthritis indices (WOMAC and Lequesne scores) and adverse events in the treatment of osteoarthritis (OA) of the knee with platelet-rich plasma (PRP) versus hyaluronic acid (HA) or placebo. METHODS: A systematic review and meta-regression were performed to compare outcomes between PRP injections versus HA or placebo. Relevant randomized control trials were identified from Medline and Scopus from date of inception to 13 August 2015...
May 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Joseph Alsousou, Mark Thompson, Paul Harrison, Keith Willett, Sarah Franklin
BACKGROUND: Platelet-rich plasma (PRP), an autologous derivative of whole blood that contains a supraphysiological concentration of platelets, is thought to invoke an earlier and improved tissue healing response. This notion has been supported by in-vitro and animal studies in bone, cartilage, tendon, and muscle. To our knowledge no published study exists of the effects of PRP in human tissues in vivo. The aim of our study was to investigate the response of ruptured Achilles tendon treated with PRP...
February 26, 2015: Lancet
Sarah K Harm, Mark K Fung
No abstract text is available yet for this article.
July 2015: Transfusion
Seyed Ahmad Raeissadat, Seyed Mansoor Rayegani, Hossein Hassanabadi, Mohammad Fathi, Elham Ghorbani, Marzieh Babaee, Kamran Azma
INTRODUCTION: Knee osteoarthritis (OA) is the most common articular disease. Different methods are used to alleviate the symptoms of patients with knee OA, including analgesics, physical therapy, exercise prescription, and intra-articular injections (glucocorticoids, hyaluronic acid [HA], etc). New studies have focused on modern therapeutic methods that stimulate cartilage healing process and improve the damage, including the use of platelet-rich plasma (PRP) as a complex of growth factors...
2015: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
Kirk A Campbell, Bryan M Saltzman, Randy Mascarenhas, M Michael Khair, Nikhil N Verma, Bernard R Bach, Brian J Cole
PURPOSE: The aims of this study were (1) to perform a systematic review of meta-analyses evaluating platelet-rich plasma (PRP) injection in the treatment of knee joint cartilage degenerative pathology, (2) to provide a framework for analysis and interpretation of the best available evidence to provide recommendations for use (or lack thereof) of PRP in the setting of knee osteoarthritis (OA), and (3) to identify literature gaps where continued investigation would be suggested. METHODS: Literature searches were performed for meta-analyses examining use of PRP versus corticosteroids, hyaluronic acid, oral nonsteroidal anti-inflammatory drugs, or placebo...
November 2015: Arthroscopy: the Journal of Arthroscopic & related Surgery
Rachad Zayni, Mathieu Thaunat, Jean-Marie Fayard, Jean-Philippe Hager, Yannick Carrillon, Julien Clechet, François Gadea, Pooler Archbold, Bertrand Sonnery Cottet
BACKGROUND: platelet-rich-plasma is increasingly used in chronic patellar tendinopathy. Ideal number of PRP injections needed is not yet established. This study compares the clinical outcomes of a single versus two consecutive PRP injections. METHOD: between December 2009 and January 2012, 40 athletes with proximal patellar tendinopathy were treated by PRP injection. Patients received single (20 patients) or two PRP injections 2 weeks apart (20 patients). All patients underwent prospective clinical evaluation, including Victorian Institute of Sport Assessment-Patella (VISA-P) score, visual analog scale (VAS) for pain, and Tegner scale before PRP and after a minimum of 2 year follow-up...
April 2015: Muscles, Ligaments and Tendons Journal
Bijan Forogh, Elaheh Mianehsaz, Shervan Shoaee, Tannaz Ahadi, Gholam R Raissi, Simin Sajadi
BACKGROUND: Evidence on the effect of platelet-rich plasma (PRP) in treating osteoarthritis (OA) is insufficient. Therefore, the present study compares the effects of a one-time injection of PRP and corticosteroid (CS). METHODS: In the present randomized double blind clinical trial, the participants who suffered from knee osteoarthritis (Grades II/III), were randomly divided into two groups: intra articular injection of PRP and CS. Knee injury and osteoarthritis outcome score (KOOS), the 20-Meter-Walk Test (20MW), active and passive ranges of motions (ROM), flexion contracture, and pain intensity based on Visual Analog Scale (VAS) were assessed before, 2-months, and 6-months after interventions...
July 2016: Journal of Sports Medicine and Physical Fitness
Lawrence Oloff, Eman Elmi, Joseph Nelson, Jana Crain
UNLABELLED: Platelet-rich plasma (PRP) has been presented as a means of treating Achilles tendinopathy. Over the past dozen years, a plethora of medical articles have advocated this treatment, yet little evidentiary-based research exists in support of this approach. Treatment protocols with PRP have been performed in 2 ways during this time: administered adjunctively during tendon surgery and as a stand-alone injection. The senior author has utilized PRP by both methods to treat Achilles tendinopathy over the past 7 years; 26 patients so treated were able to be recalled, half having undergone Achilles tendon surgery in combination with PRP administration and the other half PRP alone...
December 2015: Foot & Ankle Specialist
Christophe Charousset, Amine Zaoui, Laurence Bellaiche, Benjamin Bouyer
BACKGROUND: Chronic patellar tendinopathy (PT) is one of the most common overuse knee disorders. Platelet-rich plasma (PRP) appears to be a reliable nonoperative therapy for chronic PT. PURPOSE: To evaluate clinical and radiological outcomes of 3 consecutive ultrasound (US)-guided PRP injections for the treatment of chronic PT in athletes. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 28 athletes (17 professional, 11 semiprofessional) with chronic PT refractory to nonoperative management were prospectively included for US-guided pure PRP injections into the site of the tendinopathy...
April 2014: American Journal of Sports Medicine
Giuseppe Filardo, Elizaveta Kon, Berardo Di Matteo, Alessandro Di Martino, Giulia Tesei, Patrizia Pelotti, Annarita Cenacchi, Maurilio Marcacci
BACKGROUND: Chronic Achilles tendinopathy is responsible for a severe reduction in physical performance and persistent pain. There is currently a number of therapeutic options and the local administration of growth factors is an emerging treatment strategy. In particular, platelet-rich plasma (PRP) is a widely used way to provide a local regenerative stimulus for tendon healing. The aim of this study was to document the mid-term results obtained after treating recalcitrant Achilles tendinopathy with injections of high concentrate, leucocyte-rich PRP...
October 2014: Blood Transfusion, Trasfusione del Sangue
Tomoyuki Muto, Takeshi Kokubu, Yutaka Mifune, Ryosuke Sakata, Issei Nagura, Hanako Nishimoto, Yoshifumi Harada, Kotaro Nishida, Ryosuke Kuroda, Masahiro Kurosaka
Triamcinolone acetonide (TA) injections are widely used to treat enthesopathy, but they may induce adverse effects such as tendon impairment and rupture. Platelet-rich plasma (PRP) is a blood fraction containing high platelet concentrations and various growth factors that play a role in tissue repair processes. The purpose of this study is to investigate whether TA has deleterious effects on human rotator cuff-derived cells, and if PRP can protect these cells from the effects of TA. Human rotator cuff-derived cells were cultured with and without TA and PRP, and the culture without any additive served as the control...
June 2013: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Milva Battaglia, Federica Guaraldi, Francesca Vannini, Giuseppe Rossi, Antonio Timoncini, Roberto Buda, Sandro Giannini
Intra-articular injections of platelet-rich plasma (PRP) and hyaluronic acid (HA) represent efficacious medical treatments for osteoarthritis (OA), although no comparative study on long-term efficacy in hip OA exists. The goals of the current study were to compare the clinical efficacy of PRP vs HA at 12 months of follow-up in patients with hip OA and evaluate the influence of the type of infiltration and patient age, sex, body mass index, and degree of OA on temporal clinical evolution. One hundred patients with chronic unilateral symptomatic hip OA were consecutively enrolled and randomly assigned to 1 of 2 groups: group A received PRP and group B received HA administered via intra-articular ultrasound-guided injections...
December 2013: Orthopedics
Claudia S Cohn, Evelyn Lockhart, J Jeffrey McCullough
BACKGROUND: Autologous platelet-rich plasma (aPRP) is widely used with orthopedic patients to help treat injuries to tendons, cartilage, ligaments, and muscle. A comprehensive review of the literature was conducted to evaluate aPRP's efficacy and compare available methods. In addition, the production and administration of aPRP were explored. STUDY DESIGN AND METHODS: A literature search was performed. Randomized controlled clinical trials (RCTs) in orthopedic procedures on adult patients were included and assessed for methodologic quality...
July 2015: Transfusion
Paul Ornetti, Geoffroy Nourissat, Francis Berenbaum, Jérémie Sellam, Pascal Richette, Xavier Chevalier
Platelet-rich plasma (PRP) has been generating considerable attention as an intra-articular treatment to alleviate the symptoms of osteoarthritis. Activated platelets release a host of soluble mediators such as growth factors and cytokines, thereby inducing complex interactions that vary across tissues within the joint. In vivo, PRP may promote chondrocyte proliferation and differentiation. The available data are somewhat conflicting regarding potential effects on synovial cells and angiogenesis modulation...
January 2016: Joint, Bone, Spine: Revue du Rhumatisme
Jonathan C Riboh, Bryan M Saltzman, Adam B Yanke, Lisa Fortier, Brian J Cole
BACKGROUND: Leukocyte-poor platelet-rich plasma (LP-PRP) is hypothesized to be more suitable for intra-articular injection than leukocyte-rich PRP (LR-PRP) in the treatment of knee osteoarthritis. PURPOSE: To compare clinical outcomes and rates of adverse reactions between LP-PRP and LR-PRP for this application. STUDY DESIGN: Meta-analysis. METHODS: The MEDLINE, EMBASE, and Cochrane databases were reviewed. The primary outcome was the incidence of local adverse reactions...
March 2016: American Journal of Sports Medicine
Augustinus B M Laudy, Eric W P Bakker, Mark Rekers, Maarten H Moen
BACKGROUND: The effectiveness of platelet-rich plasma (PRP) injections for osteoarthritis (OA) is still controversial. We investigated the effect of PRP injections in patients with knee OA based on decreasing pain, improving function, global assessment and changes regarding joint imaging. METHODS: We performed a comprehensive, systematic literature search in computerised databases (MEDLINE, EMBASE, CINAHL, CENTRAL, Web of Science and PEDro) until June 2014 for randomised or non-randomised controlled trials...
May 2015: British Journal of Sports Medicine
Hesham El-Sharkawy, Alpdogan Kantarci, Jennifer Deady, Hatice Hasturk, Hongsheng Liu, Mohammad Alshahat, Thomas E Van Dyke
BACKGROUND: Platelet-rich plasma (PRP) promotes regeneration of bone, presumably through the action of concentrated growth factors. However, it is not clear how PRP affects the inflammatory response. The purpose of this study was to analyze the growth factors in PRP and to study the effects of PRP on monocyte cytokine release and lipoxin A(4) (LXA(4)) generation. METHODS: PRP was prepared from healthy donors. Platelet-derived growth factor (PDGF)-AB, PDGF-BB, transforming growth factor-beta1, insulin-like growth factor-I, fibroblast growth factor-basic (FGF-b), epidermal growth factor (EGF), vascular endothelial growth factor, interleukin-12 (p40/70), and regulated on activation, normal T-cell expressed and secreted (RANTES) levels were evaluated by enzyme-linked immunosorbent assay and bead-based multiplexing...
April 2007: Journal of Periodontology
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