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Platelet rich fibrin

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https://www.readbyqxmd.com/read/29146168/bone-marrow-derived-mesenchymal-stromal-cells-enhanced-by-platelet-rich-plasma-maintain-adhesion-to-scaffolds-in-arthroscopic-simulation
#1
Alexander R Hoberman, Carl Cirino, Mary Beth McCarthy, Mark P Cote, Leo Pauzenberger, Knut Beitzel, Augustus D Mazzocca, Felix Dyrna
PURPOSE: To assess the response of bone marrow-derived mesenchymal stromal cells (bMSCs) enhanced by platelet-rich plasma (PRP) in the setting of a normal human tendon (NHT), a demineralized bone matrix (DBM), and a fibrin scaffold (FS) with simulated arthroscopic mechanical washout stress. METHODS: Bone marrow was aspirated from the humeral head and concentrated. BMSCs were counted, plated, and grown to confluence. Cells were seeded onto 3 different scaffolds: (1) NHT, (2) DBM, and (3) FS...
November 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29126543/platelet-rich-fibrin-added-to-graft-may-increase-bone-defect-fill-in-intrabony-defects-9-months-after-graft-placement
#2
Romina Brignardello-Petersen
No abstract text is available yet for this article.
November 3, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29125132/chitosan-inhibits-platelet-mediated-clot-retraction-increases-platelet-derived-growth-factor-release-and-increases-residence-time-and-bioactivity-of-platelet-rich-plasma-in-vivo
#3
Gabrielle Deprés-Tremblay, Anik Chevrier, Nicolas Tran-Khanh, Monica Nelea, Michael D Buschmann
Platelet-rich plasma (PRP) has been used to treat different orthopedic conditions, however, the clinical benefits of using PRP remain uncertain. Chitosan (CS)-PRP implants have been shown to improve meniscus, rotator cuff and cartilage repair in pre-clinical models. The purpose of this current study was to investigate in vitro and in vivo mechanisms of action of CS-PRP implants. Freeze-dried formulations containing 1% (w/v) CS (80% degree of deacetylation and number average molar mass 38 kDa), 1% (w/v) trehalose as a lyoprotectant and 42...
November 10, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29114283/a-method-for-reconstruction-of-severely-damaged-spinal-cord-using-autologous-hematopoietic-stem-cells-and-platelet-rich-protein-as-a-biological-scaffold
#4
Ahmed Sabry Ammar, Yasser Osman, Ahmed Taher Hendam, Mohammed Ahmed Hasen, Fatma Abdullah Al Rubaish, Danya Yaagoub Al Nujaidi, Faisal Mishal Al Abbas
Introduction: There have been attempts to alter the prognosis of severe spinal cord injury in different centers, but none of which have reliably altered the outcome. Some trials use stem cells (SCs) that produced widely differing results. We hereby add our experience in our center of a surgical reconstruction of the damaged spinal cord using a mixture of SCs and Platelet-Rich Protein (PRP) with fibrin coated as a biological scaffold. Materials and Methods: Four cases of severely damaged spinal cord have been operated for neurolysis and reconstruction of the spinal cord using SCs and platelet-rich protein (PRP) with fibrin coated harvested from the peripheral circulation of the patient...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29080077/effects-of-single-and-double-layered-resorbable-membranes-and-platelet-rich-fibrin-on-bone-healing
#5
Mert Tayşi, Berkem Atalay, Burak Çankaya, Sami Yıldırım
OBJECTIVES: Research has been ongoing on achieving optimum bone healing in the reconstruction of bone loss. Clinically, soft tissue migration into the already existing bone defects is the leading cause of unfavourable bone healing. Platelet-rich fibrin, a recent material that is used to promote bone healing, was compared with single- and double-layered resorbable collagen membranes to determine whether a healing protocol which increases patient comfort is possible. MATERIALS AND METHODS: Sixty adult female Sprague-Dawley rats were used...
October 27, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29079056/large-periapical-or-cystic-lesions-in-association-with-roots-having-open-apices-managed-nonsurgically-using-1-step-apexification-based-on-platelet-rich-fibrin-matrix-and-biodentine-apical-barrier-a-case-series
#6
Sarang Sharma, Vivek Sharma, Deepak Passi, Dhirendra Srivastava, Shibani Grover, Shubha Ranjan Dutta
Teeth having open apices in the absence of a natural apical constriction pose several challenges during conventional endodontic treatment, especially when establishing an apical seal. Treatment is further challenging when these teeth are associated with large periapical or cystic lesions having resulted in expansion and/or thinning of adjacent cortical plates. Although surgical intervention is commonly adopted in the management of such cases, a conservative treatment option offering equally good prognosis is always desirable...
October 24, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29072215/modified-lateral-positioned-flap-with-platelet-rich-fibrin-graft-for-treatment-of-denuded-root-surfaces-a-clinical-study
#7
Abhishek Ashok Kurdukar, Priyanka Abhishek Kurdukar, Nitin Hemchandra Dani
BACKGROUND: Root coverage (RC) procedures such as lateral positioned flap (LPF) have been used since long time but with limited success and specific indications. AIM: This prospective clinical study was designed to evaluate clinically the effect of modified LPF (mLPF) with platelet-rich fibrin (PRF) graft for the treatment of denuded root surfaces. MATERIALS AND METHODS: Fifteen isolated Miller's Class I and II gingival recession of single-rooted teeth were selected for the study...
September 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29071440/reduction-of-the-relative-centrifugal-force-influences-cell-number-and-growth-factor-release-within-injectable-prf-based-matrices
#8
Simon Wend, Alica Kubesch, Anna Orlowska, Sarah Al-Maawi, Niklas Zender, Andre Dias, Richard J Miron, Robert Sader, Patrick Booms, C James Kirkpatrick, Joseph Choukroun, Shahram Ghanaati
Platelet rich fibrin (PRF) is a blood concentrate system obtained by centrifugation of peripheral blood. First PRF matrices exhibited solid fibrin scaffold, more recently liquid PRF-based matrix was developed by reducing the relative centrifugation force and time. The aim of this study was to systematically evaluate the influence of RCF (relative centrifugal force) on cell types and growth factor release within injectable PRF- in the range of 60-966 g using consistent centrifugation time. Numbers of cells was analyzed using automated cell counting (platelets, leukocytes, neutrophils, lymphocytes and monocytes) and histomorphometrically (CD 61, CD- 45, CD-15+, CD-68+, CD-3+ and CD-20)...
October 25, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29059116/management-of-failed-rotator-cuff-repair-in-young-patients
#9
Bassem T Elhassan, Ryan M Cox, Dave R Shukla, Julia Lee, Anand M Murthi, Robert Z Tashjian, Joseph A Abboud
Management of failed rotator cuff repair may be difficult, especially in young patients. Various nonmodifiable and modifiable patient factors, including age, tendon quality, rotator cuff tear characteristics, acute or chronic rotator cuff tear, bone quality, tobacco use, and medications, affect rotator cuff repair healing. Surgical variables, such as the technique, timing, tension on the repair, the biomechanical construct, and fixation, as well as the postoperative rehabilitation strategy also affect rotator cuff repair healing...
November 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29058984/impact-of-histological-thrombus-composition-on-preinterventional-thrombus-migration-in-patients-with-acute-occlusions-of-the-middle-cerebral-artery
#10
Christian Maegerlein, Benjamin Friedrich, Maria Berndt, Kristin Elizabeth Lucia, Lucas Schirmer, Holger Poppert, Claus Zimmer, Jaroslav Pelisek, Tobias Boeckh-Behrens, Johannes Kaesmacher
Purpose The occurrence of thrombus migration (TM) in middle cerebral arteries (MCAs) prior to mechanical thrombectomy (MT) in patients suffering from acute ischemic strokes is a crucial aspect as TM is associated with lower rates of complete reperfusion and worse clinical outcomes. In this study, we sought to clarify whether histological thrombus composition influences TM. Methods We included 64 patients with acute MCA occlusions who had undergone MT. In 11 of the cases (17.2%) we identified TM prior to the interventions...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29058084/clinical-evaluation-of-coronally-advanced-flap-with-or-without-platelet-rich-fibrin-for-the-treatment-of-multiple-gingival-recessions
#11
Samed Kuka, Sebnem Dirikan Ipci, Gokser Cakar, Selcuk Yılmaz
OBJECTIVES: The aim of this randomized, controlled study was to assess the clinical effect of platelet-rich fibrin (PRF) in combination with coronally advanced flap (CAF) on root coverage, esthetics, and patient satisfaction when compared to CAF alone for the treatment of multiple Miller class I recessions. MATERIALS AND METHODS: A total of 24 patients with 52 Miller class I multiple recessions ≥ 3 mm were included and divided into CAF + PRF and CAF groups. At baseline and 12 months after surgery, recession height (RH), keratinized tissue height, gingival thickness (GT), and mean and complete defect coverage were evaluated...
October 20, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29042736/multiple-gingival-recession-coverage-treated-with-vestibular-incision-subperiosteal-tunnel-access-approach-with-or-without-platelet-rich-fibrin-a-case-series
#12
Surbhi Garg, Sachit Anand Arora, Shivjot Chhina, Padam Singh
BACKGROUND: Gingival recession involves both soft tissue and hard tissue loss. In this evolutionary era of dentistry, newer techniques have evolved for complete coverage of isolated recession defects. Since 2012, vestibular incision subperiosteal tunnel access (VISTA) technique was used with various regenerative membranes to treat multiple recession defects (MRDs). Platelet-rich fibrin (PRF) membrane, a pool of growth factors but have any added advantage to recession coverage techniques is controversial...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29037743/the-effect-of-platelet-rich-fibrin-on-autologous-osteochondral-transplantation-an-in-vivo-porcine-model
#13
S Y Sheu, C H Wang, Y H Pao, Y T Fu, C H Liu, C H Yao, T F Kuo
BACKGROUND: This work aimed to evaluate the efficacy of cartilage transplantation to the medial femoral condyle±platelet-rich fibrin (PRF) augmentation in a porcine model. The hypothesis of the study was that PRF may act as a bioactive cell scaffold to fill defects and enhance cartilage regeneration. METHODS: Thirty-two knees of 16 miniature pigs were randomly assigned to four groups. The critical-size osteochondral defects (8x5mm) in femoral condyle of both knees were treated with one of the following: group 1-untreated controls; group 2-cartilage fragments alone; group 3-PRF alone; group 4-PRFT+cartilage fragments...
October 13, 2017: Knee
https://www.readbyqxmd.com/read/29033524/influence-of-platelet-rich-fibrin-on-post-extraction-socket-healing-a-clinical-and-radiographic-study
#14
Ahmed Abdullah Alzahrani, Afraa Murriky, Sami Shafik
AIM: The aim of this study was to evaluate clinically and radiographically, extraction socket healing using autologous platelet rich fibrin (PRF). MATERIALS AND METHODS: Twenty-four subjects needing single tooth simple extractions were selected. Twenty-four extraction sockets were divided into test group (PRF, n = 12) and control group (blood clot, n = 12). PRF was prepared with blood drawn from individuals after extraction using standard technique. PRF was placed in test group sockets followed by pressure application and figure 8 sutures...
October 2017: Saudi Dental Journal
https://www.readbyqxmd.com/read/29032818/radiographic-histologic-and-biomechanical-evaluation-of-combined-application-of%C3%A2-platelet-rich-fibrin-with-blood-clot-in%C3%A2-regenerative-endodontics
#15
Ronghui Zhou, Yumin Wang, Yuemin Chen, Shuai Chen, Hongbing Lyu, Zhiyu Cai, Xiaojing Huang
INTRODUCTION: No in vivo study has been reported on the mechanical reinforcement of a tooth after regenerative endodontic treatment (RET). The present work aimed to evaluate the concurrent use of platelet-rich fibrin (PRF) with a blood clot (BC) in RET concerning periapical healing, root development, and tooth structural reinforcement. METHODS: In our study, 24 premolars from 3 beagle dogs were assigned into control, BC, and PRF + BC groups. Periapical healing was monitored with quantitative measurements of root elongation and thickening radiographically...
October 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29026693/platelet-rich-fibrin-a-paradigm-in-periodontal-therapy-a-systematic-review
#16
REVIEW
Umesh Pratap Verma, Rakesh Kumar Yadav, Manisha Dixit, Abhaya Gupta
Periodontal tissue regeneration has always been a challenge for the periodontists owing to its structural complexity. Although with tissue engineering as a growing multidisciplinary field, this aim has partially been fulfilled. In recent years, platelet-rich fibrin (PRF) has gained wide attention for its utilization as a biocompatible regenerative material not only in dental but also in medical fields. The following systematic review has gathered all the currently available in vitro, animal, and clinical studies utilizing PubMed electronic database from January 2006 to August 2016 highlighting PRF for soft and hard tissue regeneration and/or wound healing...
September 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29023611/adjunctive-effect-of-autologous-platelet-rich-fibrin-in-the-treatment-of-intrabony-defects-in-localized-aggressive-periodontitis-patients-a-randomized-controlled-split-mouth-clinical-trial
#17
ManojKumar Thorat, Om N Baghele, Rakhewar P S
The aim of this study was to investigate the clinical and radiologic efficacy of autologous platelet-rich fibrin (PRF) in the treatment of intrabony defects associated with localized aggressive periodontitis (LAP). A total of 30 sites, 2 sites per individual in 15 LAP patients, were treated with modified flap operation (MFO; Kirkland flap) alone or combined with autologous PRF. The study variables included plaque index, sulcus bleeding index, probing depth (PD), clinical attachment level (CAL), and gingival marginal level at baseline and 12 months postoperatively...
November 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29017535/the-leucopatch%C3%A2-system-in-the-management-of-hard-to-heal-diabetic-foot-ulcers-study-protocol-for-a-randomised-controlled-trial
#18
Frances Game, William Jeffcoate, Lise Tarnow, Florence Day, Deborah Fitzsimmons, Judith Jacobsen
BACKGROUND: Diabetic foot ulcers are a common and severe complication of diabetes mellitus. Standard treatment includes debridement, offloading, management of infection and revascularisation where appropriate, although healing times may be long. The LeucoPatch® device is used to generate an autologous platelet-rich fibrin and leucocyte wound dressing produced from the patient's own venous blood by centrifugation, but without the addition of any reagents. The final product comprises a thin, circular patch composed predominantly of fibrin together with living platelets and leucocytes...
October 10, 2017: Trials
https://www.readbyqxmd.com/read/28990126/effectiveness-and-predictability-of-titanium-prepared-platelet-rich-fibrin-for-the-management-of-multiple-gingival-recessions
#19
Bilge Cansu Uzun, Esra Ercan, Mustafa Tunalı
OBJECTIVE: Titanium-prepared platelet-rich fibrin (T-PRF) is activated with titanium, which results in a more mature and aggregated form than PRF. In our previous studies, we established that the fibrin carpet formed with titanium had a firmer network structure, and longer resorption time in the tissue than the fibrin carpet formed with glass. The purpose of this randomized controlled clinical trial is to compare the effects of autogenous T-PRF and connective tissue graft (CTG). MATERIALS AND METHODS: A total of 114 Miller Class I/II gingival recessions with abrasion defects were treated either T-PRF (63 teeth) or CTG (51 teeth) using a modified tunnel technique...
October 8, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28986682/efficacy-and-safety-of-pleurodesis-using-platelet-rich-plasma-and-fibrin-glue-in-management-of-postoperative-chylothorax-after-esophagectomy
#20
Daryoush Hamidi Alamdari, Mehdi Asadi, Ahmad Nejad Rahim, Ghodratollah Maddah, Shahariar Azizi, Soudabeh Shahidsales, Mostafa Mehrabibahar
INTRODUCTION: Chylothorax is by definition a collection of lymphatic fluids in the pleural cavity because of leakage from main thoracic duct or its tributaries. It is an uncommon but serious postoperative complication in esophageal cancer patients. There is no standard therapeutic algorithm for chylothorax because no prospective or randomized trials have yet been performed to evaluate the available treatment options. The aim of this study was to evaluate the efficacy of pleurodesis with a combination of platelet-rich plasma (PRP) and fibrin glue to the treatment of chylothorax after trans-hiatal esophagectomy...
October 6, 2017: World Journal of Surgery
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