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Najafi Z, Rahmanian-Devin P, Baradaran Rahimi V, Nokhodchi A, Askari VR. Challenges and opportunities of medicines for treating tendon inflammation and fibrosis: A comprehensive and mechanistic review. Fundam Clin Pharmacol 2024:e12999. [PMID: 38468183 DOI: 10.1111/fcp.12999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 01/20/2024] [Accepted: 02/19/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND Tendinopathy refers to conditions characterized by collagen degeneration within tendon tissue, accompanied by the proliferation of capillaries and arteries, resulting in reduced mechanical function, pain, and swelling. While inflammation in tendinopathy can play a role in preventing infection, uncontrolled inflammation can hinder tissue regeneration and lead to fibrosis and impaired movement. OBJECTIVES The inability to regulate inflammation poses a significant limitation in tendinopathy treatment. Therefore, an ideal treatment strategy should involve modulation of the inflammatory process while promoting tissue regeneration. METHODS The current review article was prepared by searching PubMed, Scopus, Web of Science, and Google Scholar databases. Several treatment approaches based on biomaterials have been developed. RESULTS This review examines various treatment methods utilizing small molecules, biological compounds, herbal medicine-inspired approaches, immunotherapy, gene therapy, cell-based therapy, tissue engineering, nanotechnology, and phototherapy. CONCLUSION These treatments work through mechanisms of action involving signaling pathways such as transforming growth factor-beta (TGF-β), mitogen-activated protein kinases (MAPKs), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), all of which contribute to the repair of injured tendons.
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Affiliation(s)
- Zohreh Najafi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Pouria Rahmanian-Devin
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vafa Baradaran Rahimi
- Department of Cardiovascular Diseases, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Nokhodchi
- Lupin Pharmaceutical Research Center, 4006 NW 124th Ave., Coral Springs, Florida, Florida, 33065, USA
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Vahid Reza Askari
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Lin M, Li W, Ni X, Sui Y, Li H, Chen X, Lu Y, Jiang M, Wang C. Growth factors in the treatment of Achilles tendon injury. Front Bioeng Biotechnol 2023; 11:1250533. [PMID: 37781529 PMCID: PMC10539943 DOI: 10.3389/fbioe.2023.1250533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023] Open
Abstract
Achilles tendon (AT) injury is one of the most common tendon injuries, especially in athletes, the elderly, and working-age people. In AT injury, the biomechanical properties of the tendon are severely affected, leading to abnormal function. In recent years, many efforts have been underway to develop effective treatments for AT injuries to enable patients to return to sports faster. For instance, several new techniques for tissue-engineered biological augmentation for tendon healing, growth factors (GFs), gene therapy, and mesenchymal stem cells were introduced. Increasing evidence has suggested that GFs can reduce inflammation, promote extracellular matrix production, and accelerate AT repair. In this review, we highlighted some recent investigations regarding the role of GFs, such as transforming GF-β(TGF-β), bone morphogenetic proteins (BMP), fibroblast GF (FGF), vascular endothelial GF (VEGF), platelet-derived GF (PDGF), and insulin-like GF (IGF), in tendon healing. In addition, we summarized the clinical trials and animal experiments on the efficacy of GFs in AT repair. We also highlighted the advantages and disadvantages of the different isoforms of TGF-β and BMPs, including GFs combined with stem cells, scaffolds, or other GFs. The strategies discussed in this review are currently in the early stages of development. It is noteworthy that although these emerging technologies may potentially develop into substantial clinical treatment options for AT injury, definitive conclusions on the use of these techniques for routine management of tendon ailments could not be drawn due to the lack of data.
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Affiliation(s)
- Meina Lin
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Wei Li
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
- Medical School, Shandong Modern University, Jinan, China
| | - Xiang Ni
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Yu Sui
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Huan Li
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Xinren Chen
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Yongping Lu
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Miao Jiang
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang, China
| | - Chenchao Wang
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, China
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Iacono V, Natali S, De Berardinis L, Screpis D, Gigante AP, Zorzi C. Return to Sports and Functional Outcomes after Autologous Platelet-Rich Fibrin Matrix (PRFM) and Debridement in Midportion Achilles Tendinopathy: A Case Series with 24-Month Follow-Up. J Clin Med 2023; 12:jcm12072747. [PMID: 37048830 PMCID: PMC10094924 DOI: 10.3390/jcm12072747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/25/2023] [Accepted: 04/06/2023] [Indexed: 04/14/2023] Open
Abstract
(1) Background: Achilles tendinopathy (AT) is characterized by load-induced tendon pain, stiffness, and functional impairment that may affect the tendon midportion or insertion. Platelet-rich fibrin matrix (PRFM) is a promising adjunctive therapy for AT. We analyzed 24-month pain and functional outcomes in a cohort of patients managed by tendon debridement and autologous PRFM application to determine whether the combined treatment ensured an early return to sports/work and satisfactory clinical outcomes and functional scores. (2) Methods: The 24-month outcomes of 32 sport-practicing patients with chronic midportion AT treated with debridement and autologous PRFM were evaluated in terms of time to return to sports/work. The AOFAS and VISA-A were computed preoperatively and at 6 and 24 months. Blazina scores were evaluated preoperatively and at 6 months; ankle range of motion was assessed at 1, 6, 12, 24 months; and patient satisfaction was assessed at 24 months. (3) Results: Altogether, all patients had resumed their sport(s) activity, at the same or higher level, after 25.41 days (±5.37). Regarding work, all patients were able to return to their jobs after 16.41 days (±2.43). Ankle dorsiflexion and plantarflexion increased significantly: the AOFAS rose from 54.56 (±6.47) to 97.06 (±4.06) and 98.88 (±2.21) at 6 and 12 months, respectively, and the mean VISA-A score rose from 69.16 (±7.35) preoperatively to 95.03 (±4.67) and 97.28 (±2.43) at 6 and 12 months, respectively, after treatment. There were no complications. Most (90.62%) patients were very satisfied. (4) Conclusions: In symptomatic midportion AT, surgical debridement and autologous PRFM ensured a fast return to sports/work (4 weeks), significantly improving AOFAS and VISA-A and Blazina scores already at 6 months and providing excellent clinical outcomes at 24 months.
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Affiliation(s)
- Venanzio Iacono
- Department of Orthopaedics, IRCCS Ospedale Sacro Cuore Don Calabria, 37024 Negrar, Italy
| | - Simone Natali
- Department of Orthopaedics, IRCCS Ospedale Sacro Cuore Don Calabria, 37024 Negrar, Italy
| | - Luca De Berardinis
- Clinical Orthopaedics, Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60020 Ancona, Italy
| | - Daniele Screpis
- Department of Orthopaedics, IRCCS Ospedale Sacro Cuore Don Calabria, 37024 Negrar, Italy
| | - Antonio Pompilio Gigante
- Clinical Orthopaedics, Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60020 Ancona, Italy
| | - Claudio Zorzi
- Department of Orthopaedics, IRCCS Ospedale Sacro Cuore Don Calabria, 37024 Negrar, Italy
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Thermann H, Fischer R, Gougoulias N, Cipollaro L, Maffulli N. Endoscopic debridement for non-insertional Achilles tendinopathy with and without platelet-rich plasma. JOURNAL OF SPORT AND HEALTH SCIENCE 2023; 12:275-280. [PMID: 32619656 PMCID: PMC10105028 DOI: 10.1016/j.jshs.2020.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/01/2020] [Accepted: 06/08/2020] [Indexed: 06/01/2023]
Abstract
BACKGROUND When non-operative management fails to improve symptoms in patients with non-insertional Achilles tendinopathy, surgery may be required. Various open and endoscopic techniques have been proposed, and platelet-rich plasma (PRP) injections have been proposed as an adjunct to aid tendon healing. METHODS Thirty-six patients with mid-portion Achilles tendinopathy were randomized to undergo endoscopic debridement alone (n = 19) or in combination with intraoperative PRP application (n = 17). Clinical outcome measures included the Visual Analogue Scale for pain, function, and satisfaction and the Victorian Institute of Sports Assessment-Achilles (VISA-A) questionnaire. Patients were followed-up at 6 weeks, 3 months, 6 months, and 12 months after surgery. An MRI examination at 3 and 12 months was used to assess signal alterations within the tendon. RESULTS Both groups showed significant clinical improvement (p < 0.05) after surgery, with no difference between the 2 groups. Tendon diameter increased at 3 months and decreased at 12 months. The tendinopathy area increased at 3 months and decreased at 12 months below baseline level in both groups. There was no significant difference between the groups regarding the MRI parameters. Nodular thickening and MRI-detected signal alteration persisted after surgery, with no association between imaging and clinical outcome. Five minor complications were reported: 2 in the PRP group and 3 in the control group. CONCLUSION Endoscopic debridement of the Achilles tendon improved clinical outcomes in patients with mid-portion tendinopathy. The addition of PRP did not improve outcomes compared to debridement alone. MRI parameters showed no association with clinical outcomes.
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Affiliation(s)
- Hajo Thermann
- HKF-International Center for Hip, Foot and Knee Surgery, Bismarckstraße 9-15, 69115 Heidelberg, Germany
| | - Ralph Fischer
- HKF-International Center for Hip, Foot and Knee Surgery, Bismarckstraße 9-15, 69115 Heidelberg, Germany
| | | | - Lucio Cipollaro
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno 89100, Italy; Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy
| | - Nicola Maffulli
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno 89100, Italy; Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy; Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, 275 Bancroft Road, London E1 4DG, Queen Mary University of London, London, UK; School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Thornburrow Drive, Stoke on Trent, ST4 7QB, UK.
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Advances in the Clinical Application of Platelet-Rich Plasma in the Foot and Ankle: A Review. J Clin Med 2023; 12:jcm12031002. [PMID: 36769649 PMCID: PMC9917505 DOI: 10.3390/jcm12031002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/31/2023] Open
Abstract
Autologous and recombinant biologic substances have been generated as a result of the research into the cellular features of the healing process. Orthobiologics are increasingly being used in sports medicine and musculoskeletal surgery. Nevertheless, clinical data are limited; consequently, further studies are required, particularly in foot and ankle pathologies. This review aims to provide evidence of the most recent literature results and ignite the interest of orthopedic specialists eager for an update about the most current discussion on platelet-rich plasma (PRP) clinical applications in the foot and ankle fields. Previous studies have shown that platelet-rich plasma can be beneficial in treating various conditions, such as chronic foot ulcers, osteoarthritis, Achilles tendinopathy, etc. Despite the positive effects of PRP on various musculoskeletal conditions, more prospective studies are needed to confirm its effectiveness at treating ankle and foot pathologies. In addition to clinical trials, other factors, such as the quality of the research and the procedures involved, must be considered before they can be used in patients. More long-term evaluations are needed to support or oppose its application in treating foot and ankle disorders. We present the most extensive review of PRP's clinical applications in the foot and ankle field.
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Ramires LC, Jeyaraman M, Muthu S, Shankar A N, Santos GS, da Fonseca LF, Lana JF, Rajendran RL, Gangadaran P, Jogalekar MP, Cardoso AA, Eickhoff A. Application of Orthobiologics in Achilles Tendinopathy: A Review. Life (Basel) 2022; 12:life12030399. [PMID: 35330150 PMCID: PMC8954398 DOI: 10.3390/life12030399] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 02/05/2023] Open
Abstract
Orthobiologics are biological materials that are intended for the regeneration of bone, cartilage, and soft tissues. In this review, we discuss the application of orthobiologics in Achilles tendinopathy, more specifically. We explain the concepts and definitions of each orthobiologic and the literature regarding its use in tendon disorders. The biological potential of these materials can be harnessed and administered into injured tissues, particularly in areas where standard healing is disrupted, a typical feature of Achilles tendinopathy. These products contain a wide variety of cell populations, cytokines, and growth factors, which have been shown to modulate many other cells at local and distal sites in the body. Collectively, they can shift the state of escalated inflammation and degeneration to reestablish tissue homeostasis. The typical features of Achilles tendinopathy are failed healing responses, persistent inflammation, and predominant catabolic reactions. Therefore, the application of orthobiologic tools represents a viable solution, considering their demonstrated efficacy, safety, and relatively easy manipulation. Perhaps a synergistic approach regarding the combination of these orthobiologics may promote more significant clinical outcomes rather than individual application. Although numerous optimistic results have been registered in the literature, additional studies and clinical trials are still highly desired to further illuminate the clinical utility and efficacy of these therapeutic strategies in the management of tendinopathies.
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Affiliation(s)
- Luciano C. Ramires
- Department of Orthopaedics and Sports Medicine, Centro Clínico Mãe de Deus, Porto Alegre 90110-270, Brazil;
| | - Madhan Jeyaraman
- Department of Orthopaedics, Faculty of Medicine—Sri Lalithambigai Medical College and Hospital, Dr MGR Educational and Research Institute, Chennai 600095, India;
- Department of Orthopaedics, Apollo Hospitals, Greams Road, Chennai 600006, India;
| | - Sathish Muthu
- Department of Orthopaedics, Government Medical College and Hospital, Dindigul 624304, India
- Correspondence: (S.M.); (G.S.S.); (P.G.)
| | - Navaladi Shankar A
- Department of Orthopaedics, Apollo Hospitals, Greams Road, Chennai 600006, India;
| | - Gabriel Silva Santos
- Department of Orthopaedics, The Bone and Cartilage Institute, Indaiatuba 13334-170, Brazil; (L.F.d.F.); (J.F.L.)
- Correspondence: (S.M.); (G.S.S.); (P.G.)
| | - Lucas Furtado da Fonseca
- Department of Orthopaedics, The Bone and Cartilage Institute, Indaiatuba 13334-170, Brazil; (L.F.d.F.); (J.F.L.)
- Department of Orthopaedics, The Federal University of São Paulo, São Paulo 04024-002, Brazil
| | - José Fábio Lana
- Department of Orthopaedics, The Bone and Cartilage Institute, Indaiatuba 13334-170, Brazil; (L.F.d.F.); (J.F.L.)
| | - Ramya Lakshmi Rajendran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea;
| | - Prakash Gangadaran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea;
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Correspondence: (S.M.); (G.S.S.); (P.G.)
| | - Manasi P. Jogalekar
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA;
| | - Alfredo A. Cardoso
- Department of Oncology-Integrative Medicine-Pain Care, IAC—Instituto Ana Cardoso de Práticas Integrativas e Medicina Regenerative, Gramado 95670-000, Brazil;
| | - Alex Eickhoff
- Department of Orthopaedics, Centro Ortopédico Eickhoff, Três de Maio 98910-000, Brazil;
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Van Schaik KD, Lee KS. Orthobiologics: Diagnosis and Treatment of Common Tendinopathies. Semin Musculoskelet Radiol 2021; 25:735-744. [PMID: 34937114 DOI: 10.1055/s-0041-1735475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Orthobiologics, including platelet-rich plasma, prolotherapy, and mesenchymal stem cells, are seeing increasing use in the treatment of osteoarthritis (OA), muscle injury, and tendinopathy. This article reviews the biology and applications of orthobiologics in tendons, muscles, and joints, and focuses on platelet-rich plasma (PRP). Clinical evidence-based literature related to the use of PRP in the treatment of rotator cuff injury, lateral epicondylosis, Achilles tendinopathy, plantar fasciitis, knee OA, and acute muscle injury are discussed.
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Affiliation(s)
- Katherine D Van Schaik
- Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Kenneth S Lee
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.,Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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Platelet-Rich Plasma (PRP) Injection in Sports Injuries. Indian J Orthop 2021; 55:484-491. [PMID: 33927829 PMCID: PMC8046674 DOI: 10.1007/s43465-020-00349-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/31/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Sports injuries are very common, and the management demands high degrees of skills and best techniques for an early return to play. The use of Platelet Rich Plasma (PRP) injections in the treatment of tendon, muscle and ligament injuries has become popular. This study observes the outcomes of PRP injections in sports injuries. METHODS Forty-eight athletes (mean age 29.93 ± 8.48, Male: 37, Female: 11) presenting to a sports medicine centre with different sports injuries with symptom duration (2.81 ± 1.94) months were given PRP injections (single or multiple) four weeks apart with maximum number of injections up to three depending upon the clinical condition, Pre and Post VAS scores. Specific rehabilitation program was administered and compliance was graded by Sports Injury Rehabilitation Adherence Scale (SIRAS). A 1 year follow-up of cases was done for assessing player satisfaction and return to play. RESULTS Pre-procedure (7.25 ± 0.70) and post-procedure (2.42 ± 0.74) VAS score for all athletes showed significant difference with a p value at 0.0001. The average number of injections was 1.35 ± 1.41 with 72.91% requiring only one injection while 18.75% and 8.33% required two and three injections, respectively. CONCLUSION Athletes who required a single injection for acute injuries of lower grade returned to sports activity earlier than those who required multiple injections for chronic injuries. PRP injection has optimal effects on sports injuries not responding to conservative management.
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Hogan MV, Scott DM, Canton SP, LaBaze D, Yan AY, Wang JHC. Biologic therapies for foot and ankle injuries. Expert Opin Biol Ther 2020; 21:717-730. [PMID: 33382002 DOI: 10.1080/14712598.2021.1866534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: The use of orthobiologics as supplemental treatment for foot and ankle pathologies have increased in the past decades. They have been used to improve the healing of bone and soft tissue injuries. There have been several studies that examined the use of biologics for knee and hip pathologies but the foot and ankle construct has unique features that must be considered.Areas covered: The biologics for foot and ankle injuries that are covered in this review are platelet-rich plasma (PRP), stem cells, growth factors, hyaluronic acid, bone grafts, bone substitutes, and scaffolds. These modalities are used in the treatment of pathologies related to tendon and soft tissue as well as cartilage.Expert opinion: The utilization of biological adjuncts for improved repair and regeneration of ankle injuries represents a promising future in our efforts to address difficult clinical problems. The application of concentrated bone marrow and PRP each represents the most widely studied and commonly used injection therapies with early clinical studies demonstrating promising results, research is also being done using other potential therapies such as stem cells and growth factors; further investigation and outcome data are still needed.
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Affiliation(s)
- MaCalus V Hogan
- Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.,Foot and Ankle Injury Research Center, University of Pittsburgh, Pittsburgh, PA, USA.,Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Devon M Scott
- Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Stephen P Canton
- Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Dukens LaBaze
- Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Alan Y Yan
- Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.,Foot and Ankle Injury Research Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - James H-C Wang
- Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.,Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Madhi MI, Yausep OE, Khamdan K, Trigkilidas D. The use of PRP in treatment of Achilles Tendinopathy: A systematic review of literature. Study design: Systematic review of literature. Ann Med Surg (Lond) 2020; 55:320-326. [PMID: 32566217 PMCID: PMC7298400 DOI: 10.1016/j.amsu.2020.04.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/22/2020] [Accepted: 04/27/2020] [Indexed: 01/14/2023] Open
Abstract
Background Chronic Achilles Tendinopathy is a common condition that can be challenging to treat. There are many modalities used as treatment ranging from physiotherapy, injections, shockwave therapy to surgical intervention. Platelet Rich Plasma (PRP) has increased in popularity recently as a treatment option for Achilles Tendinopathy. It contains growth factors that might accelerate healing and speed up the recovery of this condition. Many studies have been conducted in the last few years to assess the effectiveness of this treatment method. However, there was controversy as to whether PRP had a beneficial effect on chronic Achille tendinopathy. Aim This systematic review of the literature was conducted to ascertain the efficacy of Platelet Rich Plasma (PRP) as a treatment option in chronic Achilles tendinopathy. Methods PRISMA reporting item for systematic review has been used to conduct the selection, Electronic databases included PubMed, EMBASE, Cochrane collaborate, Google scholar, the web of science and Cochrane Library were searched for all RCT, prospective and retrospective studies conducted between January 2010 to February 2019. The quality of each study was evaluated using the Oxford CEBM tool to assess the articles for validity, relevance, and applicability of the results. A total number of 288 were found, and only 11 met the inclusion criteria. Results 5 Randomised control trials, 4 prospective and 2 retrospective cohort study were included in this systematic review. A total number of 406 patients were treated for non-insertional Achilles tendinopathy of which 230 patients had PRP local injection under Ultrasound guide. Conclusion Although many of the retrospective studies suggested an advantage of using PRP, the higher level of evidence studies do not support a significant efficacy. This systematic review showed very promising results from the use of Platelet Rich Plasma demonstrated by a significant improvement in the VAST-A score, but we certainly need decent size randomised control trials to show better and more accurate results. Platelet rich plasma (PRP) has increased in popularity as a treatment option for Achilles Tendinopathy as it contains growth factors that might accelerate healing and speed up the recovery of this condition. Results of this systematic review showed significant improvement in the VISA-A score of the overall studies 28.9 point, comparing the VISA-A score using PRP with the most recent systematic review studied the effectiveness of heavy eccentric calf training (Murphy et al., 2019) [20]. Most of the RCTs were characterised by their small sample sizes which might resulted in the insignificant results.
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Affiliation(s)
- Mr Imad Madhi
- Trauma and Orthopaedics Surgery, Wythenshawe Hospital, Manchester, UK
- Corresponding author. Flat 3 Ferns House, Amberly drive, Manchester, M23 2RW, UK.
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Townsend C, Von Rickenbach KJ, Bailowitz Z, Gellhorn AC. Post-Procedure Protocols Following Platelet-Rich Plasma Injections for Tendinopathy: A Systematic Review. PM R 2020; 12:904-915. [PMID: 32103599 DOI: 10.1002/pmrj.12347] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Platelet-rich plasma (PRP) has been increasingly studied as a treatment for tendinopathy. Many factors may influence outcomes after PRP, including different protocols following administration. It was hypothesized that there would be heterogeneity in post-PRP protocols. LITERATURE SURVEY A systematized review of the literature on post-PRP protocols for tendinopathy was conducted using an electronic search of MEDLINE and Embase databases through September 2018. METHODOLOGY After duplicates were removed, English language articles involving adult patients who received PRP for tendinopathy were reviewed. Exclusion criteria included studies with fewer than 10 patients, PRP used to treat pathology other than tendinopathy, multiple protocols in one study, and surgical settings. Protocol specifics were extracted including nonsteroidal anti-inflammatory drugs (NSAID) restrictions before and after injection, postinjection restrictions on movement and weight bearing, use of orthoses, activity modifications, and postinjection rehabilitation protocols. Given limitations in the data, a meta-analysis was not performed. SYNTHESIS Eighty-four studies met inclusion criteria. Following PRP injection, weight-bearing restrictions were mentioned rarely (12% of protocols). Orthosis use was uncommon overall (18%) but more common in Achilles tendinopathy protocols (53%). The majority of protocols instituted a period of stretching (51%) and strengthening (54%). Stretching programs generally began 2-7 days following injection, and strengthening programs began within 2-3 weeks. Preinjection NSAID restriction was reported rarely (20%), whereas postinjection NSAID restriction was more common (56%), with a typical restriction of greater than 2 weeks (38%). Return to play or full activity was reported in 42% of protocols, most commonly at 4-6 weeks following injection. CONCLUSION Although the clinical effectiveness of PRP remains controversial, even less is known about the effect of post-PRP protocols, which may affect the outcomes attributed to PRP itself. No studies directly compare post-PRP protocols, and the protocols studied demonstrate substantial heterogeneity. Some consensus regarding post-PRP protocols exists, although the rationale for these recommendations is limited.
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Affiliation(s)
- Christine Townsend
- Department of Rehabilitation Medicine, New York-Presbyterian Rehabilitation Medicine, Weill Cornell Medical College & Columbia University Irving Medical Center, New York, NY, USA
| | - Kristian J Von Rickenbach
- Department of Rehabilitation Medicine, New York-Presbyterian Rehabilitation Medicine, Weill Cornell Medical College & Columbia University Irving Medical Center, New York, NY, USA
| | - Zachary Bailowitz
- Department of Rehabilitation Medicine, New York-Presbyterian Rehabilitation Medicine, Weill Cornell Medical College & Columbia University Irving Medical Center, New York, NY, USA
| | - Alfred C Gellhorn
- Department of Rehabilitation, Weill Cornell Medicine, New York, NY, USA
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Mariani E, Pulsatelli L. Platelet Concentrates in Musculoskeletal Medicine. Int J Mol Sci 2020; 21:ijms21041328. [PMID: 32079117 PMCID: PMC7072911 DOI: 10.3390/ijms21041328] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/29/2020] [Accepted: 02/06/2020] [Indexed: 12/02/2022] Open
Abstract
Platelet concentrates (PCs), mostly represented by platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) are autologous biological blood-derived products that may combine plasma/platelet-derived bioactive components, together with fibrin-forming protein able to create a natural three-dimensional scaffold. These types of products are safely used in clinical applications due to the autologous-derived source and the minimally invasive application procedure. In this narrative review, we focus on three main topics concerning the use of platelet concentrate for treating musculoskeletal conditions: (a) the different procedures to prepare PCs, (b) the composition of PCs that is related to the type of methodological procedure adopted and (c) the clinical application in musculoskeletal medicine, efficacy and main limits of the different studies.
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Affiliation(s)
- Erminia Mariani
- Laboratorio di Immunoreumatologia e rigenerazione tissutale, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
- Dipartimento di Scienze Mediche e Chirurgiche, Alma Mater Studiorum-University of Bologna, Via Massarenti 9, 40138 Bologna, Italy
- Correspondence: ; Tel.: +39-051-6366803
| | - Lia Pulsatelli
- Laboratorio di Immunoreumatologia e rigenerazione tissutale, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
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von Wehren L, Pokorny K, Blanke F, Sailer J, Majewski M. Injection with autologous conditioned serum has better clinical results than eccentric training for chronic Achilles tendinopathy. Knee Surg Sports Traumatol Arthrosc 2019; 27:2744-2753. [PMID: 30900032 DOI: 10.1007/s00167-019-05465-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/04/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE Chronic Achilles tendinopathy is one of the most common causes of malfunction and pain, which can lead to a significant reduction of the quality of life. The hypothesis of this study argues that autologous conditioned serum (i.e. Orthokine) injections in chronic midportion Achilles tendinopathy have a better outcome than eccentric training. METHODS This study investigates, retrospectively, the effects of peritendinous autologous conditioned serum injections as compared to standard eccentric training in 50 patients with chronic Achilles tendinopathy between 2012 and 2015. Before injection or eccentric training and 6 weeks, 12 weeks and 6 months thereafter, the patients were assessed by means of the VISA-A-G score (Victorian Institute of Sport Assessment-Achilles questionnaire-German). An MRI was also performed before and 6 months after injection and eccentric training. RESULTS Both patient groups had statistically significant better VISA-A-G scores after injection or eccentric training compared to the baseline before injection (90 vs 40, respectively, P < 0.001) or eccentric training (81 vs 47, respectively, P < 0.001). Comparing the baseline corrected VISA-A-G scores, patients in the autologous-conditioned-serum-group had significantly higher changes in VISA-A-G scores than the eccentric-training-group after 12 weeks (40 vs 36, P = 0.018) and 6 months (50 vs 34, P = 0.034). Both patient groups had statistically significant (P < 0.001) reduction of tendon thickness (autologous conditioned serum: 0.32; eccentric training: 0.24) and length of bursa (autologous conditioned serum: 0.24; eccentric training: 0.21) as well as significant (P < 0.001) improvement of tendon quality in MRI (autologous conditioned serum: 14 vs 1; eccentric training: 14 vs 2). There were no statistical differences in MRI-findings between the two groups. CONCLUSION Both therapies led to improvement of MRI-findings, including reduction of tendon thickness and tendon quality. Autologous-conditioned-serum-injections show greater clinical long-term benefit as compared to eccentric training and, therefore, offers a good alternative to eccentric training. LEVEL OF EVIDENCE Therapeutic studies, Level III.
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Affiliation(s)
- Lutz von Wehren
- Schön Klinik Bad Aibling, Kolbermoorerstrasse 72, 83043, Bad Aibling, Germany.
| | - Kerstin Pokorny
- Medical Park Chiemsee, Birkenallee 41, 83233, Bernau-Felden, Germany
| | - Fabian Blanke
- Hessing Stiftung, Abteilung für Sportorthopädie und arthroskopische Chirurgie, Hessingstraße 17, 86199, Augsburg, Germany
| | - Jannis Sailer
- Kantonsspital Nidwalden, Ennetmooserstrasse 19, 6370, Stans, Switzerland
| | - Martin Majewski
- Orthopädische Gemeinschaftspraxis Schützenmatt, Schützenmattstrasse 41, 4051, Basel, Switzerland
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Ibrahim DH, El-Gazzar NM, El-Saadany HM, El-Khouly RM. Ultrasound-guided injection of platelet rich plasma versus corticosteroid for treatment of rotator cuff tendinopathy: Effect on shoulder pain, disability, range of motion and ultrasonographic findings. EGYPTIAN RHEUMATOLOGIST 2019. [DOI: 10.1016/j.ejr.2018.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Ooi CC, Schneider M, Malliaras P, Png MA, Chadwick M, Jones D, Venkatanarasimha N, Connell D. Real-time sonoelastography evaluation of the Achilles tendon following ultrasound-guided platelet-rich plasma injection and eccentric exercise for the treatment of refractory Achilles tendinopathy. ULTRASOUND : JOURNAL OF THE BRITISH MEDICAL ULTRASOUND SOCIETY 2018; 27:138-147. [PMID: 32549893 DOI: 10.1177/1742271x18818608] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/08/2018] [Indexed: 11/17/2022]
Abstract
The objective of this study was to investigate the feasibility of using sonoelastography to depict Achilles tendon stiffness after platelet-rich plasma injection and eccentric exercise for chronic Achilles tendinopathy, and to correlate sonoelastography findings with clinical outcome up to 12 months after treatment. Forty-five Achilles tendons from 45 patients (33 males, 12 females; mean age 51 years) were examined using sonoelastography and ultrasound at baseline, 4-6 weeks, 6 months and 12 months post-treatment. The strain ratio (between Achilles tendon and Kager's fat) during sonoelastography was obtained. The proportion of tendons with hypoechogenicity and neovascularity were documented. Clinical outcomes were assessed by the Victorian Institute of Sport Assessment-Achilles questionnaire and correlated with sonographic findings. The Victorian Institute of Sport Assessment-Achilles improved significantly from 38.4 (±14.1) at baseline, 77.2 (±12.5) at 6 months (p < 0.001) to 81.2 (±10.8) at 12 months (p < 0.001). The strain ratio values were 2.16 (±1.02) at baseline, 2.03 (±0.67) at 4-6 weeks, 1.81 (±0.62) at 6 months and 1.19 (±0.34) at 12 months with a significant reduction observed at 6 months (p = 0.006) and 12 months (p < 0.001). At 12-month evaluation, none of the tendons regained a normal echotexture. Strain ratio demonstrated a moderately good inverse correlation with Victorian Institute of Sport Assessment-Achilles (r = -0.610, p<0.001) while B-mode and Doppler ultrasound did not show a significant correlation (r = -0.041, p = 0.817, and r = -0.116, p = 0.514). Achilles tendon stiffness shows moderately good correlation with clinical symptom at 12-month post-treatment. Sonoelastography using strain ratio could be a promising ancillary tool for monitoring Achilles tendon healing after treatment.
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Affiliation(s)
- Chin Chin Ooi
- Division of Radiological Sciences, Singapore General Hospital, Singapore, Singapore.,Department of Medical Imaging and Radiation Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia.,Imaging at Olympic Park, AAMI Park, Melbourne, Australia
| | - Michal Schneider
- Department of Medical Imaging and Radiation Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Peter Malliaras
- Department of Medical Imaging and Radiation Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia.,Imaging at Olympic Park, AAMI Park, Melbourne, Australia.,Centre for Sports and Exercise Medicine, Mile End Hospital, Queen Mary, University of London, London, UK
| | - Meng Ai Png
- Division of Radiological Sciences, Singapore General Hospital, Singapore, Singapore
| | | | - Donna Jones
- Imaging at Olympic Park, AAMI Park, Melbourne, Australia
| | | | - David Connell
- Department of Medical Imaging and Radiation Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia.,Imaging at Olympic Park, AAMI Park, Melbourne, Australia
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16
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Borg-Stein J, Osoria HL, Hayano T. Regenerative Sports Medicine: Past, Present, and Future (Adapted From the PASSOR Legacy Award Presentation; AAPMR; October 2016). PM R 2018; 10:1083-1105. [PMID: 30031963 DOI: 10.1016/j.pmrj.2018.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 07/06/2018] [Indexed: 12/14/2022]
Abstract
Regenerative medicine has shown dramatic expanse and evolution in the past decade. Within that milieu, physiatrists are taking an active role in research, clinical care delivery, and education. The purpose of this review is to provide a balance among evidence, theory, experience, clinical trends, and the foreseeable future. We focus on the literature that reports the research with the best methodology in each practice area, recognizing that the level of evidence varies substantially among different treatment modalities and conditions. The following elements are included: an overview of the evolution of currently available regenerative techniques, evidence base for each available modality (prolotherapy, platelet rich plasma, bone marrow aspirate concentrate and stem cells, adipose-derived stem cells, and amniotic tissue products), general principles in the application of these treatments, and discussion and a vision of what lies ahead. We expect that practitioners will use this review to facilitate clinical decision making and to provide a core knowledge base to assist when counseling patients. LEVEL OF EVIDENCE: IV.
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Affiliation(s)
- Joanne Borg-Stein
- Spaulding Newton Wellesley Rehab Hospital Rehabilitation Center, 65 Walnut St, Wellesley, MA 02481
| | | | - Todd Hayano
- Spaulding Rehabilitation Hospital, Charlestown, MA
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Filardo G, Di Matteo B, Kon E, Merli G, Marcacci M. Platelet-rich plasma in tendon-related disorders: results and indications. Knee Surg Sports Traumatol Arthrosc 2018; 26:1984-1999. [PMID: 27665095 DOI: 10.1007/s00167-016-4261-4] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/02/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE Platelet-rich plasma (PRP) is currently the most exploited strategy in the clinical practice to provide a regenerative stimulus for tendon healing. The aim of the present study was to systematically review the available evidence on the treatment of the main tendon disorders where PRP is currently applied. METHODS A systematic review of the literature was performed on the use of PRP as a treatment for tendinopathies focusing on the following sites: Achilles tendon, patellar tendon, rotator cuff tendons, and lateral elbow tendons. The following inclusion criteria for relevant articles were used: clinical trials written in English language up to 21 June 2016 on the use of PRP in the conservative or surgical treatment of the aforementioned tendinopathies. RESULTS The research identified the following clinical trials dealing with the application of PRP in the selected tendons: 19 papers on patellar tendon (6 being RCTs: 4 dealing with PRP conservative application and 2 surgical), 24 papers on Achilles tendon (4 RCTs: 3 conservative and 1 surgical), 29 on lateral elbow tendons (17 RCTs, all conservative), and 32 on rotator cuff (22 RCTs: 18 surgical and 3 conservative). CONCLUSION Patellar tendons seem to benefit from PRP injections, whereas in the Achilles tendon, PRP application is not indicated neither as a conservative approach nor as a surgical augmentation. Lateral elbow tendinopathy showed an improvement in most of the high-level studies, but the lack of proven superiority with respect to the more simple whole-blood injections still questions its use in the clinical practice. With regard to rotator cuff pathology, the vast majority of surgical RCTs documented a lack of beneficial effects, whereas there is still inconclusive evidence concerning its conservative application in rotator cuff disorders. LEVEL OF EVIDENCE Systematic review of level I-IV trials, Level IV.
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Affiliation(s)
- Giuseppe Filardo
- Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Berardo Di Matteo
- I Orthopaedic and Traumatologic Clinic, Rizzoli Orthopaedic Institute, Via Di Barbiano, 1/10, 40136, Bologna, Italy.
| | - Elizaveta Kon
- Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Giulia Merli
- Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Maurilio Marcacci
- Biomechanics and Technology Innovation Laboratory, Rizzoli Orthopaedic Institute, Via Di Barbiano, 1/10, 40136, Bologna, Italy
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18
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Usuelli FG, Grassi M, Maccario C, Vigano' M, Lanfranchi L, Alfieri Montrasio U, de Girolamo L. Intratendinous adipose-derived stromal vascular fraction (SVF) injection provides a safe, efficacious treatment for Achilles tendinopathy: results of a randomized controlled clinical trial at a 6-month follow-up. Knee Surg Sports Traumatol Arthrosc 2018; 26:2000-2010. [PMID: 28251260 DOI: 10.1007/s00167-017-4479-9] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 02/13/2017] [Indexed: 12/18/2022]
Abstract
PURPOSE Although platelet-rich plasma (PRP) injection has shown controversial results for the treatment of Achilles tendinopathy, it remains the most used biological treatment. Recent findings seem to demonstrate that the stromal vascular fraction (SVF) within adipose tissue may counteract the impaired tendon homeostasis. The aim of this study was to prospectively compare the efficacy of PRP and SVF injection for the treatment of non-insertional Achilles tendinopathy. METHODS Fourty-four patients were recruited in the study; 23 of them were assigned to the PRP group whereas 21 to the SVF group, treated unilaterally or bilaterally for a total of 28 tendons per group. All patients (age 18-55 years) were clinically assessed pre-operatively and at 15, 30, 60, 120 and 180 days from treatment, using the VAS pain scale, the VISA-A, the AOFAS Ankle-Hindfoot Score and the SF-36 form. The patients were also evaluated by ultrasound and magnetic resonance before treatment and after 4 (US only) and 6 months. RESULTS Both treatments allowed for a significant improvement with respect to baseline. Comparing the two groups, VAS, AOFAS and VISA-A scored significantly better at 15 and 30 days in the SVF in comparison to PRP group (p < 0.05). At the following time points the scores were not significantly different between the two groups. No correlation has been found between clinical and radiological findings. CONCLUSIONS Both PRP and SVF were safe, effective treatments for recalcitrant Achilles tendinopathy. The patients treated with SVF obtained faster results, thus suggesting that such a treatment should be taken into consideration for those patients who require an earlier return to daily activities or sport. LEVEL OF EVIDENCE Randomized Controlled Clinical Trial, Level 1.
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Affiliation(s)
| | - Miriam Grassi
- USPeC, Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | - Camilla Maccario
- CASCO Department, Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy.,Universita' degli Studi di Milano, Milano, Italy
| | - Marco Vigano'
- Orthopaedic Biotechnology Laboratory, Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | - Luciano Lanfranchi
- Plastic Surgery Department, Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | | | - Laura de Girolamo
- Orthopaedic Biotechnology Laboratory, Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
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19
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ACR Appropriateness Criteria ® Chronic Ankle Pain. J Am Coll Radiol 2018; 15:S26-S38. [PMID: 29724425 DOI: 10.1016/j.jacr.2018.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 03/04/2018] [Indexed: 12/26/2022]
Abstract
Chronic ankle pain is a common clinical problem whose cause is often elucidated by imaging. The ACR Appropriateness Criteria for chronic ankle pain define best practices of image ordering. Clinical scenarios are followed by the imaging choices and their appropriateness. The information is in ordered tables with an accompanying narrative explanation to guide physicians to order the right test. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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20
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Achilles Pain, Stiffness, and Muscle Power Deficits: Midportion Achilles Tendinopathy Revision 2018. J Orthop Sports Phys Ther 2018; 48:A1-A38. [PMID: 29712543 DOI: 10.2519/jospt.2018.0302] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The Orthopaedic Section of the American Physical Therapy Association (APTA) has an ongoing effort to create evidence-based practice guidelines for orthopaedic physical therapy management of patients with musculoskeletal impairments described in the World Health Organization's International Classification of Functioning, Disability, and Health (ICF). The purpose of these revised clinical practice guidelines is to review recent peer-reviewed literature and make recommendations related to midportion Achilles tendinopathy. J Orthop Sports Phys Ther 2018;48(5):A1-A38. doi:10.2519/jospt.2018.0302.
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21
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Wang ML, Beredjiklian PK, Steplewski A, Fertala J, Fertala A. Engineering the Second Generation of Therapeutic Cells with Enhanced Targeting of Injured Tissues. Tissue Eng Part A 2018; 24:1293-1300. [PMID: 29478375 DOI: 10.1089/ten.tea.2017.0515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Experimental approaches to improving tissue repair utilize cells and growth factors needed to restore the architecture and function of damaged tissues and organs. Key limitations of these approaches include poor delivery of therapeutic cells and growth factors into injury sites, as well as their short-term retention in target areas. In our earlier studies, we demonstrated that artificial collagen-specific anchor (ACSA) expressed on the surface of therapeutic cells directs them into collagen-rich sites of injury. Moreover, we demonstrated that the ACSA improves the retention of these cells in target sites, thereby promoting tissue repair. To advance the ACSA-based technology, we engineered the second generation of the ACSA-expressing cells able to deliver growth factors to target sites. In this study, we specifically focused on insulin growth factor 1 (IGF1), which enhances the repair of a number of collagen-rich connective tissues, including ligament and tendon. Utilizing gene engineering, we produced IGF1 in the ACSA-expressing cells. Using relevant experimental models, we demonstrated that recombinant IGF1 secreted by these cells maintains its specificity and biological activity. Moreover, our studies show that IGF1 produced by the ACSA-expressing cells cultured in three-dimensional environment promotes the formation of the collagen-rich fibrillar matrix. Furthermore, the engineered cells integrated well with the native collagen-rich tendon tissue. Our study provides strong evidence for the great potential of cells with rationally engineered target-specific receptors to restore damaged connective tissues. Future studies in relevant animal models will determine the utility of these cells in vivo.
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Affiliation(s)
- Mark L Wang
- 1 Department of Orthopaedic Surgery, Division of Orthopaedic Research, Sidney Kimmel Medical School, Thomas Jefferson University , Philadelphia, Pennsylvania.,2 Hand Surgery Division, The Rothman Institute, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Pedro K Beredjiklian
- 1 Department of Orthopaedic Surgery, Division of Orthopaedic Research, Sidney Kimmel Medical School, Thomas Jefferson University , Philadelphia, Pennsylvania.,2 Hand Surgery Division, The Rothman Institute, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Andrzej Steplewski
- 1 Department of Orthopaedic Surgery, Division of Orthopaedic Research, Sidney Kimmel Medical School, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Jolanta Fertala
- 1 Department of Orthopaedic Surgery, Division of Orthopaedic Research, Sidney Kimmel Medical School, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Andrzej Fertala
- 1 Department of Orthopaedic Surgery, Division of Orthopaedic Research, Sidney Kimmel Medical School, Thomas Jefferson University , Philadelphia, Pennsylvania
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Albano D, Messina C, Usuelli FG, De Girolamo L, Grassi M, Maccario C, Bignotti B, Tagliafico A, Sconfienza LM. Magnetic resonance and ultrasound in achilles tendinopathy: Predictive role and response assessment to platelet-rich plasma and adipose-derived stromal vascular fraction injection. Eur J Radiol 2017; 95:130-135. [PMID: 28987658 DOI: 10.1016/j.ejrad.2017.08.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 06/12/2017] [Accepted: 08/04/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To assess the correlation between magnetic resonance and ultrasound findings and clinical outcome after intratendinous injection of leucocyte-rich platelet-rich plasma or adipose-derived stromal vascular fraction in patients with non-insertional Achilles tendinopathy. MATERIALS AND METHODS Forty-three patients (age: 47.8±5.1, range 29-55) with unilateral or bilateral non-insertional Achilles tendinopathy (58 tendons overall) were randomly assigned to platelet-rich plasma (22 patients, 28 tendons) or adipose-derived stromal vascular fraction (21 patients, 30 tendons) injection group. All patients underwent magnetic resonance (tendon cross-sectional area, signal intensity, maximum anteroposterior thickness were measured), ultrasound (maximum anteroposterior thickness, power Doppler signal, ultrasound gray scale echotexture were measured), and visual analogue scale (VAS) pain evaluation at baseline and at six months from treatment. Wilcoxon, intraclass correlation coefficient, repeated measure ANOVA tests were used. RESULTS There was a significant (P<0.001) decrease of mean VAS from pre-treatment (6.4±1.4) to six-month evaluation (1.8±1.7). Significant increase of tendon thickness measured using magnetic resonance (P=0.013) and ultrasound (P=0.012) and power Doppler signal (P=0.027) was seen. There was no significant difference between pre- and post-treatment cross sectional area, signal intensity, and echotexture (P>0.217). None of the pre-treatment parameters was a predictor of treatment outcome (P>0.104). There was an excellent agreement between tendon thickness measurement between magnetic resonance and ultrasound (intraclass correlation coefficient=0.986) CONCLUSIONS: Both treatments seem to allow for clinical benefit, associated to early slight increase of tendon size and power Doppler signal. Imaging cannot be used as a predictor of clinical outcome.
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Affiliation(s)
- Domenico Albano
- Sezione di Scienze Radiologiche, Di.Bi.Med., Università degli Studi di Palermo, Via del Vespro 127, 90127, Palermo, Italy
| | - Carmelo Messina
- Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | - Federico Giuseppe Usuelli
- Chirurgia Articolare Sostitutiva e Chirurgia Ortopedica (CASCO), IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | - Laura De Girolamo
- Laboratorio di Biotecnologie applicate all'Ortopedia, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | - Miriam Grassi
- Unità Specialistica Piede e Caviglia (USPEC), IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy
| | - Camilla Maccario
- Scuola di Specializzazione in Ortopedia, Università degli Studi di Milano, Via Festa del Perdono 7, 20122, Milano, Italy
| | - Bianca Bignotti
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Largo Rosanna Benzi 10, 16129, Genova, Italy
| | - Alberto Tagliafico
- Dipartimento di Scienze della Salute and AOU IRCCS San Martino IST, Largo Rosanna Benzi 10, 16129, Genova, Italy
| | - Luca Maria Sconfienza
- Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milano, Italy; Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Via Festa del Perdono 7, 20122, Milano, Italy.
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23
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Kaux JF, Emonds-Alt T. The use of platelet-rich plasma to treat chronic tendinopathies: A technical analysis. Platelets 2017; 29:213-227. [PMID: 28759287 DOI: 10.1080/09537104.2017.1336211] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Platelet-rich plasma (PRP) is blood plasma with a high concentration of autologous platelets which constitute an immense reservoir of growth factors. The clinical use of PRP is widespread in various medical applications. Although highly popular with athletes, the use of PRP for the treatment of tendinopathies remains scientifically controversial, particularly due to the diversity of products that go by the name of "PRP." To optimize its use, it is important to look at the various stages of obtaining PRP. In this literature review, we take a closer look at eight parameters which may influence the quality of PRP: 1) anticoagulants used to preserve the best platelet function, 2) the speed of centrifugation used to extract the platelets, 3) the platelet concentrations obtained, 4) the impact of the concentration of red and while blood cells on PRP actions, 5) platelet activators encouraging platelet degranulation and, hence, the release of growth factors, and 6) the use or nonuse of local anesthetics when carrying out infiltration. In addition to these parameters, it may be interesting to analyze other variables such as 7) the use of ultrasound guidance during the injection with a view to determining the influence they have on potential recovery.
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Affiliation(s)
- Jean-François Kaux
- a Physical Medicine, Rehabilitation and Sports Traumatology Department, FIFA Medical Centre of Excellence, University and University Hospital of Liège , Liège , Belgium
| | - Thibault Emonds-Alt
- a Physical Medicine, Rehabilitation and Sports Traumatology Department, FIFA Medical Centre of Excellence, University and University Hospital of Liège , Liège , Belgium
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24
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Smith WB, Melton W, Davies J. Midsubstance Tendinopathy, Percutaneous Techniques (Platelet-Rich Plasma, Extracorporeal Shock Wave Therapy, Prolotherapy, Radiofrequency Ablation). Clin Podiatr Med Surg 2017; 34:161-174. [PMID: 28257672 DOI: 10.1016/j.cpm.2016.10.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The focus of this article is to present the current options available for noninvasive and percutaneous treatment options for noninsertional Achilles tendinopathy. An attempt is made to offer recommendations for both the treatment techniques as well as postprocedure protocols to be considered. Additionally, because there are numerous treatment options in this category, the different techniques are summarized in a chart format with a short list of pros and cons as well as the levels of evidence in the literature to support the different modalities.
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Affiliation(s)
- William Bret Smith
- Department of Orthopedics, University of South Carolina, 2 Medical Park, Columbia, SC, USA.
| | - Will Melton
- Department of Orthopedics, University of South Carolina, 2 Medical Park, Columbia, SC, USA
| | - James Davies
- Department of Orthopedics, University of South Carolina, 2 Medical Park, Columbia, SC, USA
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Costa JB, Pereira H, Espregueira-Mendes J, Khang G, Oliveira JM, Reis RL. Tissue engineering in orthopaedic sports medicine: current concepts. J ISAKOS 2017. [DOI: 10.1136/jisakos-2016-000080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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27
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Biologic and Tissue Engineering Strategies for Tendon Repair. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2016. [DOI: 10.1007/s40883-016-0019-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
Foot and ankle injuries account for nearly one-third of running injuries. Achilles tendinopathy, plantar fasciopathy, and ankle sprains are 3 of the most common types of injuries sustained during training. Other common injuries include other tendinopathies of the foot and ankle, bone stress injuries, nerve conditions including neuromas, and joint disease including osteoarthritis. This review provides an evidence-based framework for the evaluation and optimal management of these conditions to ensure safe return to running participation and reduce risk for future injury.
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Affiliation(s)
- Adam S Tenforde
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard University, 1575 Cambridge Street, Cambridge, MA 02138, USA
| | - Amy Yin
- Division of Physical Medicine and Rehabilitation, Department of Orthopaedic Surgery, Stanford University, 450 Broadway Street, Redwood City, CA 94063, USA
| | - Kenneth J Hunt
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94063, USA.
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Zwiers R, Wiegerinck JI, van Dijk CN. Treatment of midportion Achilles tendinopathy: an evidence-based overview. Knee Surg Sports Traumatol Arthrosc 2016; 24:2103-11. [PMID: 25366192 DOI: 10.1007/s00167-014-3407-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 10/22/2014] [Indexed: 12/14/2022]
Abstract
UNLABELLED In Achilles tendinopathy, differentiation should be made between paratendinopathy, insertional- and midportion Achilles tendinopathy. Midportion Achilles tendinopathy is clinically characterized by a combination of pain and swelling at the affected site, with impaired performance as an important consequence. The treatment of midportion Achilles tendinopathy contains both non-surgical and surgical options. Eccentric exercise has shown to be an effective treatment modality. Promising results are demonstrated for extracorporeal shockwave therapy. In terms of the surgical treatment of midportion Achilles tendinopathy, no definite recommendations can be made. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Ruben Zwiers
- Department of Orthopaedic Surgery, Academical Medical Center, University of Amsterdam, P.O. Box 22660, 1100 DD, Amsterdam, The Netherlands.
| | - Johannes I Wiegerinck
- Department of Orthopaedic Surgery, Academical Medical Center, University of Amsterdam, P.O. Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - C Niek van Dijk
- Department of Orthopaedic Surgery, Academical Medical Center, University of Amsterdam, P.O. Box 22660, 1100 DD, Amsterdam, The Netherlands
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de Vos RJ. Does Platelet-Rich Plasma Increase Tendon Metabolism? ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 920:263-73. [DOI: 10.1007/978-3-319-33943-6_25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Oloff L, Elmi E, Nelson J, Crain J. Retrospective Analysis of the Effectiveness of Platelet-Rich Plasma in the Treatment of Achilles Tendinopathy: Pretreatment and Posttreatment Correlation of Magnetic Resonance Imaging and Clinical Assessment. Foot Ankle Spec 2015; 8:490-7. [PMID: 26253526 DOI: 10.1177/1938640015599033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
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. In this retrospective study, qualified patients had pretreatment and posttreatment magnetic imaging studies and completed a Victorian Institute of Sports Assessment-Achilles questionnaire. In this limited study, PRP showed promise in the treatment of Achilles tendinopathy. Both the stand-alone injection group and surgical/injection groups had statistically significant degrees of improvement in pre-MRI and post-MRI imaging studies. There was no statistically significant difference between the 2 treatment groups. Of interest, it appears that the difference between the MRI scoring correlates with the survey score. LEVEL OF EVIDENCE Therapeutic, Level, IV: Case series.
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Affiliation(s)
- Lawrence Oloff
- Sports Orthopedic and Rehabilitation Medical Associates, Redwood City, California (LO)St Mary's Medical Center, San Francisco, California (EE)Kaiser Riverside, Riverside, California (JN)California Advanced Imaging Medical Associates, Atherton, California (JC)
| | - Eman Elmi
- Sports Orthopedic and Rehabilitation Medical Associates, Redwood City, California (LO)St Mary's Medical Center, San Francisco, California (EE)Kaiser Riverside, Riverside, California (JN)California Advanced Imaging Medical Associates, Atherton, California (JC)
| | - Joseph Nelson
- Sports Orthopedic and Rehabilitation Medical Associates, Redwood City, California (LO)St Mary's Medical Center, San Francisco, California (EE)Kaiser Riverside, Riverside, California (JN)California Advanced Imaging Medical Associates, Atherton, California (JC)
| | - Jana Crain
- Sports Orthopedic and Rehabilitation Medical Associates, Redwood City, California (LO)St Mary's Medical Center, San Francisco, California (EE)Kaiser Riverside, Riverside, California (JN)California Advanced Imaging Medical Associates, Atherton, California (JC)
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Abstract
Injuries of the Achilles tendon are relatively common with potentially devastating outcomes. Healing Achilles tendons form a fibrovascular scar resulting in a tendon which may be mechanically weaker than the native tendon. The resulting strength deficit causes a high risk for reinjury and other complications. Treatments using biologics aim to restore the normal properties of the native tendon and reduce the risk of rerupture and maximize tendon function. The purpose of this review was to summarize the current findings of various therapies using biologics in an attempt to improve the prognosis of Achilles tendon ruptures and tendinopathies. A PubMed search was performed using specific search terms. The search was open for original manuscripts and review papers limited to publication within the last 10 years. From these searches, papers were included in the review if they investigated the effects of biological augmentation on Achilles tendon repair or healing. Platelet-rich plasma may assist in the healing process of Achilles tendon ruptures, while the evidence to support its use in the treatment of chronic Achilles tendinopathies remains insufficient. The use of growth factors such as hepatocyte growth factor, recombinant human platelet-derived growth factor-BB, interleukin-6, and transforming growth factor beta as well as several bone morphogenetic proteins have shown promising results for Achilles tendon repair. In vitro and preclinical studies have indicated the potential effectiveness of bone marrow aspirate as well. Stem cells also have positive effects on Achilles tendon healing, particularly during the early phases. Polyhydroxyalkanoates (PHA), decellularized tendon tissue, and porcine small intestinal submucosa (SIS) are biomaterials which have shown promising results as scaffolds used in Achilles tendon repair. The application of biological augmentation techniques in Achilles tendon repair appears promising; however, several techniques require further investigation to evaluate their clinical application.
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Affiliation(s)
- Evan Shapiro
- Orthopedics Department, Feinstein Institute for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Daniel Grande
- Orthopedics Department, Feinstein Institute for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA.
| | - Mark Drakos
- Orthopedics Department, Feinstein Institute for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA
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34
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Abstract
A Cochrane Review was performed to assess the effects of platelet-rich therapies for treating musculoskeletal soft tissue injuries. Selection criteria were randomized and quasirandomized controlled trials (RCTs) that compared platelet-rich therapy with either placebo, autologous whole blood, dry needling, or no platelet-rich therapy for people with acute or chronic musculoskeletal soft tissue injuries. Primary outcomes were functional status, pain, and adverse effects. The investigators found 19 studies that compared platelet-rich therapy with placebo, autologous whole blood, dry needling, or no platelet-rich therapy. Disorders included rotator cuff tears (arthroscopic repair; 6 trials); shoulder impingement syndrome surgery (1 trial); elbow epicondylitis (3 trials); anterior cruciate ligament (ACL) reconstruction (4 trials), ACL reconstruction (donor graft site application; 2 trials), patellar tendinopathy (1 trial), Achilles tendinopathy (1 trial), and acute Achilles rupture surgical repair (1 trial). They further subdivided the studies based on type of treatment, including tendinopathies in which platelet-rich therapy injections were the main treatment (5 trials), and surgical augmentation procedures in which platelet-rich therapy was applied during surgery (14 trials). The conclusion was that there is currently insufficient evidence to support the use of platelet-rich therapy for treating musculoskeletal soft tissue injuries. Researchers contemplating RCTs should consider the coverage of currently ongoing trials when assessing the need for future RCTs on specific conditions. There is a need for standardization of PRP preparation methods. At this time, the use of PRP in foot and ankle surgery as an orthobiologic does not have an absolute indication. Many of the studies are lower evidence-based from surgical techniques. Several in vitro studies have shown that growth factors promote the regeneration of bone, cartilage, and tendons. More clinical studies are needed to evaluate the use of PRP as an orthobiologic. In the author’s opinion, PRP does have a role when conservative treatment has failed and the next treatment option is an invasive surgical procedure
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Affiliation(s)
- Sean T Grambart
- Carle Physician Group, 1802 South Mattis Avenue, Champaign, IL 61821, USA.
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35
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Di Matteo B, Filardo G, Kon E, Marcacci M. Platelet-rich plasma: evidence for the treatment of patellar and Achilles tendinopathy--a systematic review. Musculoskelet Surg 2014; 99:1-9. [PMID: 25323041 DOI: 10.1007/s12306-014-0340-1] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 09/30/2014] [Indexed: 12/16/2022]
Abstract
Platelet-rich plasma (PRP) has been introduced in the clinical practice to treat a growing number of different musculoskeletal pathologies. It is currently applied in the treatment of Achilles and patellar tendinopathies, which are common sport-related injuries very challenging to manage. Aim of the present paper was to review systematically the available clinical evidence concerning the application of PRP in the treatment of patellar and Achilles tendinopathy. A systematic review of the literature was performed according to the following inclusion criteria for relevant articles: (1) clinical reports of any level of evidence, (2) written in the English language, (3) with no time limitation and (4) on the use of PRP to treat conservatively Achilles and patellar tendinopathy. Twenty-two studies were included and analyzed. Two studies on patellar tendinopathy were randomized controlled trials (RCTs), whereas just one RCT was published on Achilles tendon. All the papers concerning patellar tendon reported positive outcome for PRP, which proved to be superior to other traditional approaches such as shock-wave therapy and dry needling. In the case of Achilles tendon, despite the encouraging findings reported by case series, the only RCT available showed no significant clinical difference between PRP and saline solution. The main finding of this study was the paucity of high-level literature regarding the application of PRP in the management of patellar and Achilles tendinopathy. However, the clinical data currently available, although not univocal, suggest considering PRP as a therapeutic option for recalcitrant patellar and Achilles tendinopathies.
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Affiliation(s)
- B Di Matteo
- II Orthopaedic and Traumatologic Clinic - Biomechanics and Technology Innovation Laboratory, Rizzoli Orthopaedic Institute, Via Di Barbiano, 1/10, 40136, Bologna, Italy,
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36
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Murawski CD, Smyth NA, Newman H, Kennedy JG. A single platelet-rich plasma injection for chronic midsubstance achilles tendinopathy: a retrospective preliminary analysis. Foot Ankle Spec 2014; 7:372-6. [PMID: 24771019 DOI: 10.1177/1938640014532129] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
UNLABELLED The purpose of this study was to evaluate a series of patients undergoing a single platelet-rich plasma (PRP) injection for the treatment of chronic midsubstance Achilles tendinopathy, in whom conservative treatment had failed. Thirty-two patients underwent a single PRP injection for the treatment of chronic midsubstance Achilles tendinopathy and were evaluated at a 6-month final follow-up using the Foot and Ankle Outcome Score and Short Form 12 general health questionnaire. Magnetic resonance imaging was performed on all patients prior to and 6 months after injection. Twenty-five of 32 patients (78%) reported that they were asymptomatic at the 6-month follow-up visit and were able to participate in their respective sports and daily activities. The remaining 7 patients (22%) who reported symptoms that did not improve after 6 months ultimately required surgery. Four patients went on to have an Achilles tendoscopy, while the other 3 had an open debridement via a tendon splitting approach. A retrospective evaluation of patients receiving a single PRP injection for chronic midsubstance Achilles tendinopathy revealed that 78% had experienced clinical improvement and had avoided surgical intervention at 6-month follow-up. LEVELS OF EVIDENCE Therapeutic, Level IV: Retrospective case series.
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Affiliation(s)
| | - Niall A Smyth
- Hospital for Special Surgery, New York, New York (CDM, NAS, HN, JGK)
| | - Hunter Newman
- Hospital for Special Surgery, New York, New York (CDM, NAS, HN, JGK)
| | - John G Kennedy
- Hospital for Special Surgery, New York, New York (CDM, NAS, HN, JGK)
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37
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Abstract
Pain and dysfunction related to tendinopathy are often refractory to traditional treatments and offer a unique challenge to physicians, because no gold standard treatment exists. Injectable biologics may represent a new modality in conjunction with a multifaceted treatment approach. Platelet-rich plasma (PRP) injections are not associated with the systemic or tendon degradation risks of corticosteroids or the inherent risks of surgery. Studies are promising but have not been replicated with high-powered evidence at the clinical level. Further evidence to expand understanding of the role of PRP in the treatment of tendinopathy is needed.
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Affiliation(s)
- Ken Mautner
- Departments of Physical Medicine and Rehabilitation and Orthopaedics, Emory Orthopaedics and Spine Center, 59 Executive Park Dr South, Suite 1000, Atlanta, GA 30329.
| | - Lee Kneer
- Departments of Physical Medicine and Rehabilitation and Orthopaedics, Emory Orthopaedics and Spine Center, 59 Executive Park Dr South, Suite 1000, Atlanta, GA 30329
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38
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Andia I, Abate M. Platelet-rich plasma: underlying biology and clinical correlates. Regen Med 2014; 8:645-58. [PMID: 23998756 DOI: 10.2217/rme.13.59] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Platelet-rich plasma (PRP) has recently become the focus of intensive interest and discussion, in part because of the expanding understanding of platelet function. Anucleate platelets within PRP release a myriad of growth factors and cytokines while contributing to plasma coagulation and fibrin development; the latter acts as vehicle for the local delivery. The biological effects of PRP are largely attributed to the platelet secretome and plasma signaling proteins. Clinical data suggest that PRPs may exploit different regenerative mechanisms under diverse disease conditions, including hemostasis, inflammation, angiogenesis and the synthesis of extracellular matrix. The success of PRP therapies depends on current tissue healing research and the translation of this knowledge into clinical developments.
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Affiliation(s)
- Isabel Andia
- BioCruces Health Research Institute, Cruces University Hospital, 48903 Barakaldo, Bizkaia, Spain.
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Platelet-rich plasma injections for the treatment of refractory Achilles tendinopathy: results at 4 years. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2014; 12:533-40. [PMID: 24960641 DOI: 10.2450/2014.0289-13] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Accepted: 02/11/2014] [Indexed: 01/26/2023]
Abstract
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. MATERIALS AND METHODS Twenty-seven patients (mean age: 44.6 years; 22 men and 5 women) affected by chronic mid-portion Achilles tendinopathy (7 bilateral, for a total of 34 tendons), refractory to previous treatments, were enrolled. Patients were treated with three ultrasound-guided intra-tendinous injections of PRP at 2-week intervals. Patients were prospectively evaluated at baseline, and then at 2, 6, and up to a mean of 54.1 months of follow-up (minimum 30 months), using the following tools: Blanzina, VISA-A, EQ-VAS for general health, and Tegner scores. RESULTS The VISA-A score showed a significant improvement: the baseline score of 49.9±18.1 increased to 62.9±19.8 at 2 months (p=0.002), with a further improvement at 6 months (84.3±17.1, p<0.0005), and stable results at 4.5 years (90.0±13.9). The EQ-VAS score also showed a similar positive trend. An evaluation of the activity level confirmed these findings, showing a significant improvement in the Tegner score over time (p=0.017 for the final evaluation). The longer duration of symptoms before treatment was associated with a slower return to sport (p=0.041). DISCUSSION PRP injections produced good overall results for the treatment of chronic recalcitrant Achilles tendinopathy with a stable outcome up to a medium-term follow-up. Longer symptom duration was related with a more difficult return to sporting activity.
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40
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Elder S, Thomason J. Effect of platelet-rich plasma on chondrogenic differentiation in three-dimensional culture. Open Orthop J 2014; 8:78-84. [PMID: 24843389 PMCID: PMC4023405 DOI: 10.2174/1874325001408010078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/16/2014] [Accepted: 04/20/2014] [Indexed: 02/01/2023] Open
Abstract
Platelet-rich plasma (PRP) may have the potential to enhance articular cartilage regeneration through release of
growth factors including transforming growth factor isoforms. The purpose of this study was to investigate the potential
for PRP to stimulate chondrogenic differentiation in three-dimensional PRP hydrogel constructs. Allogenic PRP was
prepared using a double centrifugation protocol which resulted in a platelet concentration approximately 250% above
baseline. Canine marrow stromal cells were encapsulated at 6.8×106 cells/ml in either 2% sodium alginate or in a 3:1
mixture of freshly prepared PRP and 2% alginate. PRP and alginate beads were cultured in chemically defined
chondrogenic medium with and without 10 ng/ml TGF-β3. PRP cultures were additionally supplemented with frozen-thawed
PRP. In the absence of TGF-β3, PRP had a mild stimulatory effect on cell proliferation. PRP did not stimulate cell
proliferation in the presence of TGF-β3. Cells exposed to TGF-β3 accumulated significantly more GAG/DNA than those
which were not, but there was not a statistically significant difference between alginate and PRP. Total collagen content
was greater in PRP than in alginate, regardless of TGF-β3. Chondrogenesis in PRP was qualitatively and spatially
different than that which occurred in conventional alginate beads and was characterized by isolated centers of intense
chondrogenesis. Overall the results demonstrate that PRP alone weakly promotes chondroinduction of marrow stromal
cells, and the effect is greatly augmented by TGF-β3.
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Affiliation(s)
- Steven Elder
- Department of Agricultural & Biological Engineering, Bagley College of Engineering, Mississippi State University, Starkville, MS, USA
| | - John Thomason
- Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS, USA
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Vannini F, Di Matteo B, Filardo G, Kon E, Marcacci M, Giannini S. Platelet-rich plasma for foot and ankle pathologies: a systematic review. Foot Ankle Surg 2014; 20:2-9. [PMID: 24480491 DOI: 10.1016/j.fas.2013.08.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 08/02/2013] [Accepted: 08/07/2013] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this article is to review systematically all the literature available on the clinical application of PRP for the treatment of foot and ankle pathologies, to understand its potential and best indications for clinical use. METHODS A systematic search of the PubMed database was performed. Research criteria were the following: (1) papers in the English language, (2) dealing with the clinical application of PRP for the treatment of orthopedic-related conditions affecting the foot and ankle district, (3) with I to IV level of evidence, and (4) reporting clinical results. RESULTS A total of 17 studies fulfilled the inclusion criteria. Nine papers dealt with Achilles tendon management, 2 articles with plantar fasciitis, 3 papers with talar osteochondral lesions, 2 with PRP application in total ankle replacement, and 1 article with PRP in foot and ankle fusions. The overall evaluation of the results reported does not clearly demonstrate the potential of PRP treatment in any of the specific fields of application. CONCLUSIONS Considering the literature currently available, no clear indications for using PRP in the foot and ankle district emerged. LEVEL OF EVIDENCE Level IV, systematic review of Level I, II, III and IV studies.
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Affiliation(s)
- F Vannini
- I Orthopaedic Clinic and Movement Analysis Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136 Bologna, Italy
| | - B Di Matteo
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136 Bologna, Italy.
| | - G Filardo
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136 Bologna, Italy
| | - E Kon
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136 Bologna, Italy
| | - M Marcacci
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136 Bologna, Italy
| | - S Giannini
- I Orthopaedic Clinic and Movement Analysis Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136 Bologna, Italy
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42
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Marques LF, Stessuk T, Camargo ICC, Sabeh Junior N, Santos LD, Ribeiro-Paes JT. Platelet-rich plasma (PRP): Methodological aspects and clinical applications. Platelets 2014; 26:101-13. [DOI: 10.3109/09537104.2014.881991] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Carmont MR. Video Q&A: state-of-the-art therapy for the elite and non-elite athlete: an interview with Mike Carmont. BMC Med 2014; 12:8. [PMID: 24438069 PMCID: PMC3896799 DOI: 10.1186/1741-7015-12-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 01/07/2014] [Indexed: 11/24/2022] Open
Abstract
In this video Q&A, Mr Mike Carmont answers questions about state-of-the-art treatments for elite athletes, and the progress and challenges behind translating these into successful therapies for the non-elite athlete.
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Abstract
Orthobiologics have evolved to the extent that they significantly influence modern orthopedic surgical practice. A better understanding of the role of various growth factors and cells in the process of tendon healing, ligament repair, cartilage regeneration and bone formation has stimulated focused research in many chronic musculoskeletal ailments. Investigators have published results of laboratory as well as clinical studies, using orthobiologics like platelet rich plasma, stem cells, autologous conditioned serum etc., with variable results. However, a clear consensus over the best orthobiologic substance and the method of preparation and usage of these substances is lacking. Much of the confusion is due to the fact that studies ranging from RCTs to case reports present variable results, and the interpretations are wide-ranging. We have reviewed the available orthobiologics related data with a focus on platelet rich plasma in orthopedic conditions.
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Affiliation(s)
- Mandeep S Dhillon
- Department of Orthopaedics, PGIMER, Chandigarh, India,Address for correspondence: Dr. Mandeep S. Dhillon, Professor, Department of Orthopaedics, PGIMER, Chandigarh, India. E-mail:
| | | | - Sandeep Patel
- Department of Orthopaedics, PGIMER, Chandigarh, India
| | - Vijay Shetty
- Department of Orthopaedics, Hiranandani Hospital, Povai, Mumbai, India
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Tagliafico A, Russo G, Boccalini S, Michaud J, Klauser A, Serafini G, Martinoli C. Ultrasound-guided interventional procedures around the shoulder. Radiol Med 2013; 119:318-26. [PMID: 24297588 DOI: 10.1007/s11547-013-0351-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 02/10/2013] [Indexed: 01/08/2023]
Abstract
The aim of this review is to illustrate the spectrum of ultrasound-guided procedures around the shoulder. The shoulder is affected by a wide range of both, traumatic and degenerative diseases. Ultrasound guidance is a low-cost and safe tool to perform minimally invasive interventional procedures around the shoulder. The clinical outcome is shown by the use of clinical scores: visual analogue scale (VAS), Constant's score and Shoulder Pain Disability Index (SPADI). Rotator cuff calcification is a common painful condition that occurs in up to 7.5 % of otherwise healthy adults. Ultrasound-guided procedures include single-needle and double-needle approach with different needles. These techniques are described and the results are critically compared. Ultrasound-guided viscosupplementation is a new therapeutic approach for treatment of several shoulder pain disorders: osteoarthritis, rotator cuff tear and tendinosis. In adhesive capsulitis, different therapeutic ultrasound-guided techniques such as corticosteroid injection, capsular distension (sodium chlorate solution; sodium chlorate and corticosteroids; air) and viscosupplementation are evaluated. Acromion-clavear injection of steroid and lidocaine solution under ultrasound guidance is easy to perform and is indicated in conservative treatment of painful osteoarthrosis. The treatment of rotator cuff tendinosis and partial tears with ultrasound-guided injection of concentrated autologous platelets is also described.
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Affiliation(s)
- Alberto Tagliafico
- Department of Experimental Medicine, Institute of Anatomy, DIMES, University of Genova, Vie de Toni 14, 16132, Genoa, Italy,
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Yuan T, Zhang CQ, Wang JHC. Augmenting tendon and ligament repair with platelet-rich plasma (PRP). Muscles Ligaments Tendons J 2013. [PMID: 24367773 DOI: 10.11138/mltj/2013.3.3.139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tendon and ligament injuries (TLI) commonly occur in athletes and non-athletes alike, and remarkably debilitate patients' athletic and personal abilities. Current clinical treatments, such as reconstruction surgeries, do not adequately heal these injuries and often result in the formation of scar tissue that is prone to re-injury. Platelet-rich plasma (PRP) is a widely used alternative option that is also safe because of its autologous nature. PRP contains a number of growth factors that are responsible for its potential to heal TLIs effectively. In this review, we provide a comprehensive report on PRP. While basic science studies in general indicate the potential of PRP to treat TLIs effectively, a review of existing literature on the clinical use of PRP for the treatment of TLIs indicates a lack of consensus due to varied treatment outcomes. This suggests that current PRP treatment protocols for TLIs may not be optimal, and that not all TLIs may be effectively treated with PRP. Certainly, additional basic science studies are needed to develop optimal treatment protocols and determine those TLI conditions that can be treated effectively.
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Affiliation(s)
- Ting Yuan
- Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, School of Medicine, Pittsburgh, USA ; Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai, China
| | - Chang-Qing Zhang
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai, China
| | - James H-C Wang
- Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, School of Medicine, Pittsburgh, USA
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Dallaudière B, Meyer P, Hummel V, Perozziello A, Peuchant A, Moreau-Durieux MH, Silvestre A, Pelé E, Wakim N, Loriaut P, Boyer P, Schouman-Claeys E, Serfaty JM, Pesquer L. Efficacy of second intra-tendinous platelet-rich-plasma injection in case of incomplete response of the first injection: three-year follow up experience. Diagn Interv Imaging 2013; 94:871-7. [PMID: 23931981 DOI: 10.1016/j.diii.2013.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE Tendinopathy is a frequent and ubiquitous disease developing early disorganized collagen fibers with neo-angiogenesis on histology. Peritendinous injection of corticosteroid is the commonly accepted strategy despite the absence of inflammation in tendinopathy. Platelet-rich plasma (PRP) might be a useful strategy to rapidly accelerate healing of the tendinopathy but there is a lack ok knowledge about the amount of PRP to be injected and the opportunity of a second injection in case of partial pain relief. The aim of our study was to assess the potential therapeutic effect of early second PRP intra-tendinous to treat persistent painful tendon tear and tendinosis in a long-term follow-up by ultrasonography (US) and clinical data in case of incomplete efficiency of first PRP treatment injection. MATERIALS AND METHODS Twenty-four consecutive patients referred for US treatment of tendon tear or tendinosis (T+) were included retrospectively. All had previously received a single intra-tendinous injection of PRP under US guidance (PRPT+) and benefited of a second PRP injection (PRPT2+) under US guidance in order to treat persistent painful. US and clinical data were collected for each anatomic compartment for upper and lower limbs before treatment (D0), 6 weeks (W6) after first treatment, 6 weeks (W12) after second treatment and until 32-month follow-up. We used Mac Nemar test and regression model to compare US and clinical data. RESULTS The residual US size of lesions was not significantly lower at W12 after PRPT2+ as compared to W6 (P=0.86 in upper and P=NS in lower member) independently of age (P=0.22), gender (P=0.97) and kind of tendinopathy (P=NS). Quick dash test values and WOMAC values were not significantly lower in PRPT+ at W12 (average: 21.5 months) as compared to W6 (P>0.66) and long-term follow-up (P>0.75) independently of age (P=0.39), gender (P=0.63) and kind of tendinopathy (P=NS). Nevertheless, comparison between D0 and long-term follow-up (LTF) functionnal score was statistically significant (p<0.001 in upper and lower member). CONCLUSION Our study suggests that second early intra-tendinous PRP injection under US guidance does not permit rapid decrease of tendinopathy area in US, nor does it quickly improve clinical pain and functional data in case of incomplete efficiency of first PRP injection. However, in long-term follow-up, patients improved their ability to mobilize pathologic tendons.
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Affiliation(s)
- B Dallaudière
- Service de Radiologie, Hôpital universitaire Bichat, 46, rue Henri-Huchard, 75018 Paris, France; Université Paris-Diderot, 5, rue Thomas-Mann, 75205 Paris cedex 13, France; Inserm U698, Hôpital universitaire Bichat, Secteur C.-Bernard, 46, rue Henri-Huchard, 75877 Paris cedex 18, France.
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48
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Pruna R, Medina D, Rodas G, Artells R. Tendinopatía rotuliana. Modelo de actuación terapéutica en el deporte. Med Clin (Barc) 2013; 141:119-24. [DOI: 10.1016/j.medcli.2012.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/30/2012] [Accepted: 12/20/2012] [Indexed: 11/26/2022]
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49
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Efficacy of intra-tendinous injection of platelet-rich plasma in treating tendinosis: comprehensive assessment of a rat model. Eur Radiol 2013; 23:2830-7. [DOI: 10.1007/s00330-013-2926-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 05/07/2013] [Accepted: 05/12/2013] [Indexed: 12/27/2022]
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50
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Angthong C, Khadsongkram A, Angthong W. Outcomes and quality of life after platelet-rich plasma therapy in patients with recalcitrant hindfoot and ankle diseases: a preliminary report of 12 patients. J Foot Ankle Surg 2013; 52:475-80. [PMID: 23651695 DOI: 10.1053/j.jfas.2013.04.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Indexed: 02/03/2023]
Abstract
The present study aimed to determine the outcomes and quality of life after platelet-rich plasma therapy in patients with chronic recalcitrant diseases of the hindfoot and ankle and to identify the crucial clinical variables. The records of 12 adult patients with diseases of the hindfoot and ankle were included in the present study. These patients had been treated with platelet-rich plasma from September 2010 to April 2011 after 3 to 6 months or more of conservative treatment had been unsuccessful. They had attended the follow-up visits, were consecutively enrolled, and retrospectively studied. A total of 3 mL of autologous platelet-rich plasma was injected under fluoroscopic or ultrasound guidance into the affected areas. All patients had been evaluated using visual analog scale foot and ankle scoring before treatment and at set intervals after treatment. According to their scores at the final follow-up visit (mean 16 months), the patients were allocated to the satisfactory (score ≥ 80; n = 8) and unsatisfactory (score < 80; n = 4) groups. The health-related quality of life was assessed using the Medical Outcomes Study short-form, 36-item survey at the final follow-up visit, because the study was retrospective, and the information was not available before treatment. The mean visual analog score at the final follow-up visit (79.71 ± 17.81) was significantly greater than the mean pretreatment score (57.89 ± 20.77; p = .002). Four patients (33%) had unsatisfactory results. The mean short-form, 36-item score for the satisfactory group (85.23 ± 11.30) was significantly greater than that (57.33 ± 12.91) of the unsatisfactory group (p = .003). No definitive factors influencing the outcome of this treatment were found. The substantial number of patients with an unsatisfactory outcome indicates that platelet-rich plasma injection might be an option but might not be a mainstay of nonoperative treatment of problematic conditions of the hindfoot and ankle. The actual benefit of this treatment, including the factors influencing its outcome, are still inconclusive.
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Affiliation(s)
- Chayanin Angthong
- Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, Thammasat University Faculty of Medicine, Klong Nueng, Klong Luang, Pathum Thani, Thailand.
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