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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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Williams S, Ligas C, Oloff L, Klein TE. The Role of Epigenomics in Mapping Potential Precursors for Foot and Ankle Tendinopathy: A Systematic Review. Foot Ankle Spec 2023; 16:446-454. [PMID: 37165881 DOI: 10.1177/19386400231170967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Tendinopathy of the foot and ankle is a common clinical problem for which the exact etiology is poorly understood. The field of epigenetics has been a recent focus of this investigation. The purpose of this article was to review the genomic advances in foot and ankle tendinopathy that could potentially be used to stratify disease risk and create preventative or therapeutic agents. A multi-database search of PubMed, Cochrane, Google Scholar, and clinicaltrials.gov from January 1, 2000 to July 1, 2022 was performed. A total of 18 articles met inclusion and exclusion criteria for this review. The majority of such research utilized case-control candidate gene association to identify different genetic risk factors associated with chronic tendinopathy. Polymorphisms in collagen genes COL5A1, COL27A1, and COL1A1 were noted at a significantly higher frequency in Achilles tendinopathy versus control groups. Other allelic variations that were observed at an increased incidence in Achilles tendinopathy were TNC and CASP8. The extracellular matrix (ECM) demonstrated macroscopic changes in Achilles tendinopathy, including an increase in aggrecan and biglycan mRNA expression, and increased expression of multiple matrix metalloproteinases. Cytokine expression was also influenced in pathology and aberrantly demonstrated dynamic response to mechanical load. The pathologic accumulation of ECM proteins and cytokine expression alters the adaptive response normal tendon has to physiologic stress, further propagating the risk for tendinopathy. By identifying and understanding the epigenetic mediators that lead to tendinopathy, therapeutic agents can be developed to target the exact underlying etiology and minimize side effects.Level of Evidence: Level IV: Systematic Review of Level II-IV Studies.
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Affiliation(s)
- Samantha Williams
- Department of Podiatric Surgery, Silicon Valley Reconstructive Foot and Ankle Fellowship, Palo Alto Medical Foundation, Mountain View, California
| | - Chandler Ligas
- Department of Podiatric Surgery, Silicon Valley Reconstructive Foot and Ankle Fellowship, Palo Alto Medical Foundation, Mountain View, California
| | - Lawrence Oloff
- Department of Podiatric Surgery, Silicon Valley Reconstructive Foot and Ankle Fellowship, Palo Alto Medical Foundation, Mountain View, California
- St. Mary's Medical Center, San Francisco, California
| | - Teri E Klein
- Departments of Biomedical Data Science and Medicine, Stanford Center for Biomedical Informatics Research (BMIR), and Stanford University, Stanford, California
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Oloff LM, Wilhelm I, Vora NS. Orthobiologic Use in Sports Injuries. Clin Podiatr Med Surg 2023; 40:169-179. [PMID: 36368841 DOI: 10.1016/j.cpm.2022.07.011] [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: 11/25/2022]
Abstract
Orthobiologics have gained much popularity in recent years but there has not been a large amount of clinical evidence to support their use. In the limited research that has been published, they have been shown to be effective and safe. They can assist in earlier return to activity with the avoidance of surgery. They can also augment current surgical practice to aid in healing and return to sport with few complications. With new medical innovation, there is unfortunately a higher cost for these products. The use of orthobiologics will only grow and so will the need for high-level clinical evidence.
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Affiliation(s)
- Lawrence M Oloff
- Saint Mary's Medical Center, 450 Stanyan Street, San Francisco, CA 94117, USA.
| | - Isaac Wilhelm
- Saint Mary's Medical Center, 450 Stanyan Street, San Francisco, CA 94117, USA
| | - Nishit S Vora
- 1501 Trousdale Drive, Suite 115, Burlingame, CA 94010, USA
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Grävare Silbernagel K, Malliaras P, de Vos RJ, Hanlon S, Molenaar M, Alfredson H, van den Akker-Scheek I, Antflick J, van Ark M, Färnqvist K, Haleem Z, Kaux JF, Kirwan P, Kumar B, Lewis T, Mallows A, Masci L, Morrissey D, Murphy M, Newsham-West R, Norris R, O'Neill S, Peers K, Sancho I, Seymore K, Vallance P, van der Vlist A, Vicenzino B. ICON 2020-International Scientific Tendinopathy Symposium Consensus: A Systematic Review of Outcome Measures Reported in Clinical Trials of Achilles Tendinopathy. Sports Med 2022; 52:613-641. [PMID: 34797533 PMCID: PMC8891092 DOI: 10.1007/s40279-021-01588-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Nine core domains for tendinopathy have been identified. For Achilles tendinopathy there is large variation in outcome measures used, and how these fit into the core domains has not been investigated. OBJECTIVE To identify all available outcome measures outcome measures used to assess the clinical phenotype of Achilles tendinopathy in prospective studies and to map the outcomes measures into predefined health-related core domains. DESIGN Systematic review. DATA SOURCES Embase, MEDLINE (Ovid), Web of Science, CINAHL, The Cochrane Library, SPORTDiscus and Google Scholar. ELIGIBILITY CRITERIA FOR SELECTING STUDIES Clinical diagnosis of Achilles tendinopathy, sample size ≥ ten participants, age ≥ 16 years, and the study design was a randomized or non-randomized clinical trial, observational cohort, single-arm intervention, or case series. RESULTS 9376 studies were initially screened and 307 studies were finally included, totaling 13,248 participants. There were 233 (177 core domain) different outcome measures identified across all domains. For each core domain outcome measures were identified, with a range between 8 and 35 unique outcome measures utilized for each domain. The proportion of studies that included outcomes for predefined core domains ranged from 4% for the psychological factors domain to 72% for the disability domain. CONCLUSION 233 unique outcome measures for Achilles tendinopathy were identified. Most frequently, outcome measures were used within the disability domain. Outcome measures assessing psychological factors were scarcely used. The next step in developing a core outcome set for Achilles tendinopathy is to engage patients, clinicians and researchers to reach consensus on key outcomes measures. PROSPERO REGISTRATION CRD42020156763.
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Affiliation(s)
- Karin Grävare Silbernagel
- Department of Physical Therapy, University of Delaware, 540 South College Avenue, Newark, DE, 19713, USA.
| | - Peter Malliaras
- Physiotherapy Department, School of Primary and Allied Health Care, Faculty of Medicine Nursing and Health Science, Monash University, Melbourne, VIC, Australia
| | - Robert-Jan de Vos
- Department of Orthopaedic Surgery and Sports Medicine, Erasmus MC University Medical Centre, Rotterdam, Zuid-Holland, The Netherlands
| | - Shawn Hanlon
- Department of Physical Therapy, University of Delaware, 540 South College Avenue, Newark, DE, 19713, USA
| | - Mitchel Molenaar
- Department of Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Håkan Alfredson
- Department of Community Medicine and Rehabilitation, Rehabilitation Medicine, Umeå University, Umeå, Sweden
| | - Inge van den Akker-Scheek
- Department of Orthopedics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jarrod Antflick
- Department of Bioengineering, School of Engineering, Imperial College, London, UK
| | - Mathijs van Ark
- Department of Physiotherapy, School of Health Care Studies, Hanze University of Applied Sciences and Peescentrum, Centre of Expertise Primary Care Groningen (ECEZG), Groningen, The Netherlands
| | | | - Zubair Haleem
- Sports and Exercise Medicine, Queen Mary University of London, London, UK
- Arsenal Football Club, London, UK
| | - Jean-Francois Kaux
- Department of Physical and Rehabilitation Medicine and Sports Traumatology, University and University Hospital of Liège, Liège, Belgium
| | - Paul Kirwan
- School of Physiotherapy, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Bhavesh Kumar
- Institute of Sport Exercise and Health (ISEH), University College London, London, UK
| | - Trevor Lewis
- Aintree University Hospital, Liverpool Foundation Trust, Liverpool, UK
| | - Adrian Mallows
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, UK
| | - Lorenzo Masci
- Institute of Sport Exercise and Health (ISEH), University College London, London, UK
| | - Dylan Morrissey
- Sports and Exercise Medicine, Queen Mary University of London, London, UK
| | - Myles Murphy
- National School of Nursing, Midwifery, Health Sciences and Physiotherapy, The University of Notre Dame Australia, Fremantle, WA, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Richard Newsham-West
- School of Allied Health, Department of Physiotherapy, La Trobe University, Melbourne, VIC, Australia
| | - Richard Norris
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Liverpool University Hospitals, NHS Foundation Trust, Liverpool, UK
| | - Seth O'Neill
- School of Allied Health, University of Leicester, Leicester, UK
| | - Koen Peers
- Department of Physical and Rehabilitation Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Igor Sancho
- Sports and Exercise Medicine, Queen Mary University of London, London, UK
- Physiotherapy Department, University of Deusto, San Sebastian, Spain
| | - Kayla Seymore
- Department of Physical Therapy, University of Delaware, 540 South College Avenue, Newark, DE, 19713, USA
| | - Patrick Vallance
- Physiotherapy Department, School of Primary and Allied Health Care, Faculty of Medicine Nursing and Health Science, Monash University, Clayton, VIC, Australia
| | - Arco van der Vlist
- Department of Orthopaedics and Sports Medicine, Erasmus MC University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Bill Vicenzino
- School of Health and Rehabilitation Sciences: Physiotherapy, The University of Queensland, Brisbane, QLD, Australia
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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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Matthews W, Ellis R, Furness J, Hing WA. The clinical diagnosis of Achilles tendinopathy: a scoping review. PeerJ 2021; 9:e12166. [PMID: 34692248 PMCID: PMC8485842 DOI: 10.7717/peerj.12166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022] Open
Abstract
Background Achilles tendinopathy describes the clinical presentation of pain localised to the Achilles tendon and associated loss of function with tendon loading activities. However, clinicians display differing approaches to the diagnosis of Achilles tendinopathy due to inconsistency in the clinical terminology, an evolving understanding of the pathophysiology, and the lack of consensus on clinical tests which could be considered the gold standard for diagnosing Achilles tendinopathy. The primary aim of this scoping review is to provide a method for clinically diagnosing Achilles tendinopathy that aligns with the nine core health domains. Methodology A scoping review was conducted to synthesise available evidence on the clinical diagnosis and clinical outcome measures of Achilles tendinopathy. Extracted data included author, year of publication, participant characteristics, methods for diagnosing Achilles tendinopathy and outcome measures. Results A total of 159 articles were included in this scoping review. The most commonly used subjective measure was self-reported location of pain, while additional measures included pain with tendon loading activity, duration of symptoms and tendon stiffness. The most commonly identified objective clinical test for Achilles tendinopathy was tendon palpation (including pain on palpation, localised tendon thickening or localised swelling). Further objective tests used to assess Achilles tendinopathy included tendon pain during loading activities (single-leg heel raises and hopping) and the Royal London Hospital Test and the Painful Arc Sign. The VISA-A questionnaire as the most commonly used outcome measure to monitor Achilles tendinopathy. However, psychological factors (PES, TKS and PCS) and overall quality of life (SF-12, SF-36 and EQ-5D-5L) were less frequently measured. Conclusions There is significant variation in the methodology and outcome measures used to diagnose Achilles tendinopathy. A method for diagnosing Achilles tendinopathy is proposed, that includes both results from the scoping review and recent recommendations for reporting results in tendinopathy.
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Affiliation(s)
- Wesley Matthews
- Bond Institute of Health and Sport, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Richard Ellis
- Active Living and Rehabilitation: Aotearoa New Zealand, Health and Rehabilitation Research Institute, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand.,Department of Physiotherapy, School of Clinical Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - James Furness
- Bond Institute of Health and Sport, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Wayne A Hing
- Bond Institute of Health and Sport, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, Australia
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Abate M, Di Carlo L, Salini V. To evaluate the outcomes of PRP treatment in Achilles tendinopathy: An intriguing methodological problem. Orthop Traumatol Surg Res 2021; 107:102787. [PMID: 33333266 DOI: 10.1016/j.otsr.2020.102787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 11/03/2019] [Accepted: 02/27/2020] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Assessing the outcomes of Platelet Rich Plasma (PRP) treatment in Achilles Tendinopathy (AT) may prove difficult due to several methodological reasons. For example, given that the simple mean of VISA-A score is just the result of positive, negative or null values, this may provide incomplete information, and therefore the size of individual changes can remain unknown. On the contrary, calculating the score changes in each subject after treatment would allow a more appropriate evaluation of the clinical results. However, this method has been applied only to few small-scale studies. Therefore we performed a retrospective study aiming to determine: (1) are the percentages of positive outcomes of the present research comparable to those of previous studies performed in different settings? (2) Is there a relationship between the size of increase of the clinical score and the patient satisfaction? HYPOTHESES The percentages of positive outcomes of the present research are comparable to those of previous studies performed in different settings. MATERIAL AND METHODS This is a retrospective observational study. Eighty-four patients submitted to PRP treatment for mid-portion AT were enrolled. Pain and function were evaluated by means of VISA-A scale. Besides the mean, in each subject the pre- and post-treatment difference of VISA-A score was computed and the outcome was defined clinically no detectable, detectable and evident according to the increasing values of the score (0 to 9 points, 10 to 19, and≥20 points change, respectively). The Likert's scale for the patients satisfaction was also used. RESULTS The mean VISA-A increased significantly after treatment (from 50.1±9.1 at baseline to 63.7±13.8 at 3 months (p=0.00001) and 67.2±14.1 at 6 months (p=0.00001)). At 3 and 6 months the subjects belonging to the prefixed categories were 15, 45, 24 and 19, 36, 29, respectively. Moreover, large discrepancies were observed between the size of increase of the clinical score and patients satisfaction, mainly for intermediate increases of the score. DISCUSSION The percentages of positive outcomes found in this study are slightly lower than those reported in literature. The different patients expectations about the efficacy of the therapy can explain the discrepancies between the size of increase of the clinical score and the individual satisfaction. In comparison to the simple mean, the individual changes of VISA-A score allow a proper evaluation of the outcomes. The research shows that discrepancies can be present in the percentage of positive clinical outcomes between different studies. The size of increase of the clinical score does not always match patient satisfaction. LEVEL OF PROOF IV retrospective study without control group.
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Affiliation(s)
- Michele Abate
- Department of Medicine and Sciences of Aging, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66013, Chieti Scalo (CH), Italy.
| | - Luigi Di Carlo
- Department of Medicine and Sciences of Aging, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66013, Chieti Scalo (CH), Italy
| | - Vincenzo Salini
- Division of Orthopedics and Traumatology, San Raffaele Hospital, Milan, Italy
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Lo Presti M, Costa GG, Agrò G, Vasco C, Zunarelli P, Zaffagnini S. Adipose-derived Stromal Vascular Fraction Injection in a Competitive High-level Athlete Affected by Insertional Achilles Tendinopathy. J Foot Ankle Surg 2021; 60:626-629. [PMID: 33551230 DOI: 10.1053/j.jfas.2020.04.019] [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: 03/27/2020] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 02/03/2023]
Abstract
Achilles tendinopathy is one of the most common ankle and foot overuse injuries, especially among athletes. Despite this, the management of this injury lacks an evidence-based support, and patients are at risk of long-term morbidity with unpredictable clinical outcome. Recently, injective approach has gained more and more attention, and in particular the intratendinous injection with adipose-derived stromal vascular fraction. We report a case of an insertional Achilles tendinopathy in a high-level professional athlete, who was treated avoiding surgical treatment in favor of this innovative biological approach. Patient's satisfaction and return to play was prospectively evaluated for a period of 6 months of follow-up. An improvement of all functional scores was yet appreciated after 1 month from the treatment, with a crescent trend until the last 6-month follow-up. The patient was able to return to train after 34 days, and returned to match after 68 days, playing 20 minutes. She returned to the complete full game 72 days after treatment. However subsequent ultrasound and MRI evaluations failed to show any substantial changes in the characteristics of the lesion from the preoperative images. This case report opens a new window for the treatment of insertional Achilles tendinopathy in competitive athletes. The current outcome deserves further investigation with higher quality studies in order to confirm the validity of this fascinating therapeutic option.
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Affiliation(s)
- Mirco Lo Presti
- Physician, II Orthopaedic Clinic, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | | | - Giuseppe Agrò
- Physician, II Orthopaedic Clinic, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Cosimo Vasco
- Physician, II Orthopaedic Clinic, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Pierpaolo Zunarelli
- Physician, Education and Research Department, Isokinetic Medical Group, FIFA Medical Centre of Excellence, Bologna, Italy
| | - Stefano Zaffagnini
- Physician and Full Professor, II Orthopaedic Clinic, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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DeCarbo WT. Biologics in the Treatment of Achilles Tendon. Clin Podiatr Med Surg 2021; 38:235-244. [PMID: 33745654 DOI: 10.1016/j.cpm.2020.12.008] [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: 10/22/2022]
Abstract
The treatment of Achilles tendinitis from conservative to minimally invasive to surgery gives patients a wide range of treatment options for this common pathology. The use and role of biologics to augment this treatment is emerging. The use of biologics may enhance the healing potential of the Achilles tendon when conservative treatment fails. There are a handful of biologics being investigated to obtain if improved outcomes can be maximized.
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Affiliation(s)
- William T DeCarbo
- St. Clair Orthopedic Associates, 1050 Bower Hill Road, Suite 105, Pittsburgh, PA 14243, USA.
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10
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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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12
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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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Abstract
Regenerative medicine is gaining more and more space for the treatment of Achilles pathologic conditions. Biologics could play a role in the management of midportion Achilles tendinopathy as a step between conservative and surgical treatment or as an augmentation. Higher-level studies are needed before determining a level of treatment recommendation for biologic strategies for insertional Achilles tendinopathy. Combining imaging with patient's functional requests could be the way to reach a protocol for the use of biologics for the treatment of midportion Achilles tendinopathy and, for this perspective, the authors describe the Foot and Ankle Reconstruction Group algorithm of treatment.
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Affiliation(s)
- Cristian Indino
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi, 4, Milan 20161, Italy.
| | - Riccardo D'Ambrosi
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi, 4, Milan 20161, Italy
| | - Federico G Usuelli
- Humanitas San Pio X, via Francesco Nava, 31, 20159 Milano, Lombardia, Italy
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Pedachenko EG, Vasilyeva IG, Khizniak MV, Chopyck NG, Oleksenko NP, Shuba IN, Tsjubko OI, Galanta OS, Snitsar ND, Makarova TA, Dmytrenko AB. The Effect of Platelet-Rich Plasma on Morphogenesis and Expression of Chondrogenic Marker Genes by Chondrocyte-Like Cells of the Rat Nucleus Pulposus in Vitro. CYTOL GENET+ 2019. [DOI: 10.3103/s0095452719020087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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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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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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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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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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21
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Follow-up of surgical and minimally invasive treatment of Achilles tendon pathology: a brief diagnostic imaging review. Musculoskelet Surg 2017; 101:51-61. [PMID: 28197895 DOI: 10.1007/s12306-017-0456-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/15/2017] [Indexed: 10/20/2022]
Abstract
The follow-up of an operated tendon is primarily clinical, although clinical examination may not be sufficient in the presence of certain complications. The imaging techniques are of great value not only in the diagnosis of tendon pathologies, but also as an adjunct to clinical evaluation. This is particularly true in the follow-up of patients submitted to surgical tendon reconstruction, by monitoring morphological effects of different interventions and evaluating tendon healing processes. Interpretation of imaging findings requires knowledge of the imaging appearance of the operated tendon during the healing phase, to distinguish between normal postsurgical changes and real pathology, as well as knowledge of surgical technique, postoperative course (including type of prescribed therapy) and possible postoperative complications. The most important imaging modalities to examine the Achilles tendon are ultrasound and magnetic resonance imaging. This article gives a review of some of the most common treatment strategies for Achilles tendon pathology, expected postoperative imaging findings and postoperative complications.
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23
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24
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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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