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Morrison RJM, Brock TM, Reed MR, Muller SD. Radiofrequency Microdebridement Versus Surgical Decompression for Achilles Tendinosis: A Randomized Controlled Trial. J Foot Ankle Surg 2018; 56:708-712. [PMID: 28495412 DOI: 10.1053/j.jfas.2017.01.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Indexed: 02/03/2023]
Abstract
Achilles tendinosis is primarily managed nonoperatively with activity modification and physiotherapy, although surgery can be required. This has classically involved surgical decompression of the Achilles tendon, although the use of radiofrequency microdebridement has been suggested as a novel minimally invasive alternative. We present a randomized controlled trial comparing radiofrequency microdebridement using the Topaz® microdebrider wand and traditional surgical decompression. All patients with Achilles tendinosis referred to a single surgeon and meeting the inclusion criteria were invited to participate in our single-blinded, randomized controlled study. The Victorian Institute of Sports Assessment-Achilles (VISA-A) questionnaire and the visual analog scale were used as measures at baseline and 6 months postoperatively. From 2009 to 2014, 16 patients were randomized to traditional decompression treatment and 20 to Topaz® treatment. All surgical procedures were performed as day-case procedures with the patient under general anesthetic by a single surgeon. No significant differences were found between the groups in demographic data. At 6 months after intervention, both groups demonstrated an improvement in the Victorian Institute of Sports Assessment-Achilles and visual analog scale scores compared with baseline, with no difference found between treatment modalities at 6 months. The Topaz® microdebrider resulted in variable outcomes after surgery and is not without complications. Regarding the patient-reported outcome measures, Topaz® conferred no additional benefit compared with traditional surgical decompression and we have stopped using Topaz® in our treatment of Achilles tendinosis.
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Affiliation(s)
- Rory J M Morrison
- Specialist Registrar, Trauma and Orthopaedic Surgery, Department of Trauma and Orthopaedic Surgery, Northumbria Healthcare NHS Foundation Trust, Ashington, United Kingdom.
| | - Timothy M Brock
- Specialist Registrar, Trauma and Orthopaedic Surgery, Department of Trauma and Orthopaedic Surgery, Northumbria Healthcare NHS Foundation Trust, Ashington, United Kingdom
| | - Mike R Reed
- Consultant Trauma and Orthopaedic Surgeon, Department of Trauma and Orthopaedic Surgery, Northumbria Healthcare NHS Foundation Trust, Ashington, United Kingdom
| | - Scott D Muller
- Consultant Trauma and Orthopaedic Surgeon, Department of Trauma and Orthopaedic Surgery, Northumbria Healthcare NHS Foundation Trust, Ashington, United Kingdom
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102
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Tang C, Chen Y, Huang J, Zhao K, Chen X, Yin Z, Heng BC, Chen W, Shen W. The roles of inflammatory mediators and immunocytes in tendinopathy. J Orthop Translat 2018; 14:23-33. [PMID: 30035030 PMCID: PMC6034108 DOI: 10.1016/j.jot.2018.03.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/13/2018] [Accepted: 03/19/2018] [Indexed: 02/06/2023] Open
Abstract
Tendinopathy is a common disease of the musculoskeletal system, particularly in athletes and sports amateurs. In this review, we will present evidence for the critical role of inflammatory mediators and immunocytes in the pathogenesis of tendinopathy and the efficacy of current antiinflammatory therapy and regenerative medicine in the clinic. We hereby propose a hypothesis that in addition to pulling force there may be compressive forces being exerted on the tendon during physical activities, which may initiate the onset of tendinopathy. We performed literature searches on MEDLINE from the inception of this review to February 2018. No language restrictions were imposed. The search terms were as follows: ("Tendinopathy"[Mesh] OR "Tendon Injuries"[Mesh] OR "Tendinitis"[Mesh] OR "Tendon"[Mesh]) AND (Inflammation OR "Inflammatory mediator*" OR Immunocyte*) OR ("anti inflammatory*" OR "regenerative medicine"). Inclusion criteria included articles that were original and reliable, with the main contents being highly relevant to our review. Exclusion criteria included articles that were not available online or have not been published. We scanned the abstract of these articles first. This was then followed by a careful screening of the articles which might be suitable for our review. Finally, 84 articles were selected as references. This review article is written in the narrative form. The translational potential of this article: Understanding the mechanisms of inflammation and existing antiinflammatory and regenerative therapies is key to the development of therapeutic strategies in tendinopathy.
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Affiliation(s)
- Chenqi Tang
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang 310009, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Orthopaedics Research Institute, Zhejiang Univerisity, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China.,China Orthopaedic Regenerative Medicine (CORMed), Chinese Medical Association, Hangzhou, China
| | - Yangwu Chen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang 310009, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Orthopaedics Research Institute, Zhejiang Univerisity, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China.,China Orthopaedic Regenerative Medicine (CORMed), Chinese Medical Association, Hangzhou, China
| | - Jiayun Huang
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang 310009, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Orthopaedics Research Institute, Zhejiang Univerisity, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China.,China Orthopaedic Regenerative Medicine (CORMed), Chinese Medical Association, Hangzhou, China
| | - Kun Zhao
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China.,China Orthopaedic Regenerative Medicine (CORMed), Chinese Medical Association, Hangzhou, China
| | - Xiao Chen
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China.,China Orthopaedic Regenerative Medicine (CORMed), Chinese Medical Association, Hangzhou, China
| | - Zi Yin
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China
| | - Boon Chin Heng
- Faculty of Dentistry, Department of Endodontology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Weishan Chen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang 310009, China.,Orthopaedics Research Institute, Zhejiang Univerisity, Zhejiang 310000, China
| | - Weiliang Shen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang 310009, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Zhejiang 310000, China.,Orthopaedics Research Institute, Zhejiang Univerisity, Zhejiang 310000, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Zhejiang 310000, China.,China Orthopaedic Regenerative Medicine (CORMed), Chinese Medical Association, Hangzhou, China
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103
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Evaluation of sonoelastography in Achilles tendon of healthy volunteers and patients with symptomatic Achilles tendon. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2018. [DOI: 10.1016/j.ejrnm.2017.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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104
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Paratendinous Scraping and Excision of Plantaris for Achilles Tendinopathy. TECHNIQUES IN FOOT AND ANKLE SURGERY 2018. [DOI: 10.1097/btf.0000000000000168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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105
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Dirrichs T, Quack V, Gatz M, Tingart M, Rath B, Betsch M, Kuhl CK, Schrading S. Shear Wave Elastography (SWE) for Monitoring of Treatment of Tendinopathies: A Double-blinded, Longitudinal Clinical Study. Acad Radiol 2018; 25:265-272. [PMID: 29153963 DOI: 10.1016/j.acra.2017.09.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/16/2017] [Accepted: 09/08/2017] [Indexed: 10/18/2022]
Abstract
RATIONALE AND OBJECTIVES We aimed to investigate the diagnostic accuracy with which shear wave elastography (SWE) can be used to monitor response to treatment of tendinopathies, and to compare it to conventional ultrasound (US)-imaging methods (B-mode US (B-US) and power Doppler US (PD-US)). MATERIALS AND METHODS A prospective Institutional Review Board-approved longitudinal study on 35 patients with 47 symptomatic tendons (17 Achilles-, 15 patellar-, and 15 humeral-epicondylar) who underwent standardized multimodal US and standardized clinical assessment before and after 6 months of treatment (tailored stretching exercise, sport break, and local Polidocanol) was carried out. All US studies were performed by radiologists blinded to the clinical symptoms on both tendon sides to avoid biased interpretations, by B-US, PD-US, and SWE, conducted in the same order, using a high-resolution linear 15 MHz probe (Aixplorer). Orthopedic surgeons who were in turn blinded to US imaging results used established orthopedic scores (Victorian Institute of Sports Assessment questionnaire for Achilles, Victorian Institute of Sports Assessment questionnaire for patellar tendons, and Disability Arm Shoulder Hand scoring system) to rate presence, degree, and possible resolution of symptoms. We analyzed the diagnostic accuracy with which the different US imaging methods were able to detect symptomatic tendons at baseline as well as treatment effects, with orthopedic scores serving as reference standard. RESULTS B-US, PD-US, and SWE detected symptomatic tendons with a sensitivity of 66% (31 of 47), 72% (34 of 47), and 87.5% (41 of 47), respectively. Positive predictive value was 0.67 for B-US, 0.87 for PD-US, and 1 for SWE. After treatment, clinical scores improved in 68% (32 of 47) of tendons. Treatment effects were observable by B-US, PD-US, and SWE with a sensitivity of 3.1% (1 of 32), 28.1% (9 of 32), and 81.3% (26 of 32), respectively. B-US was false-positive in 68.8% (20 of 32), PD-US in 46.9% (15 of 32), and SWE in 12.5% (4 of 32) (SWE). Clinical scores and B-US, PD-US, and SWE findings correlated poorly (r = 0.24), moderately (r = 0.59), and strongly (r = 0.80). CONCLUSION Unlike B-US or PD-US, SWE is able to depict processes associated with tendon healing and may be a useful tool to monitor treatment effects.
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106
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Naterstad IF, Rossi RP, Marcos RL, Parizzoto NA, Frigo L, Joensen J, Lopes Martins PSL, Bjordal JM, Lopes-Martins RAB. Comparison of Photobiomodulation and Anti-Inflammatory Drugs on Tissue Repair on Collagenase-Induced Achilles Tendon Inflammation in Rats. Photomed Laser Surg 2017; 36:137-145. [PMID: 29265910 DOI: 10.1089/pho.2017.4364] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Tendinopathy is characterized by pain, edema, and structural changes in tendon tissue. OBJECTIVE In this animal study we decided to compare the short- and medium-term effects of low-level laser therapy (LLLT), dexamethasone, and diclofenac on inflammation and tendon tissue repair in collagenase-induced tendinitis. MATERIALS AND METHODS Two hundred five female Wistar rats were randomly divided into five groups. Animals in the control group were given a saline injection and the experimental groups received a collagenase injection (100 μg/tendon) in the peritendinous Achilles and received no treatment, LLLT (3 J, 810 nm, 100 mW), diclofenac (1.1 mg/kg), or dexamethasone (0.02 mg/kg). Histological analyses were performed at 10 time points up to 60 days (n = 5/group each time point), and included an assessment of the severity of inflammation, collagen fiber content, and organization. RESULTS Collagenase injection induced a severe inflammatory reaction with significant reduction in collagen content for 48 h, and disorientation of collagen fibers lasting between 14 and 21 days. Diclofenac and dexamethasone reduced inflammatory signs during the first 2 days, although there was prolongation of the inflammatory phase and slower normalization of tendon quality, particularly in the dexamethasone group. LLLT prevented hemorrhage, reduced inflammation severity, and preserved tendon morphology compared with the other groups. CONCLUSIONS LLLT showed a significant superiority over commonly used anti-inflammatory pharmaceutical agents in acute collagenase-induced tendinitis.
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Affiliation(s)
- Ingvill Fjell Naterstad
- 1 Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen , Bergen, Norway
| | - Rafael Paolo Rossi
- 2 Post-Graduate Program in Pharmacology, Institute of Biomedical Sciences, University of São Paulo , São Paulo, Brazil
| | - Rodrigo Labat Marcos
- 3 Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho , São Paulo, Brazil
| | | | - Lucio Frigo
- 5 Department of Health Sciences, University of Cruzeiro do Sul , São Paulo, Brazil
| | - Jón Joensen
- 1 Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen , Bergen, Norway
| | | | - Jan Magnus Bjordal
- 1 Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen , Bergen, Norway
| | - Rodrigo Alvaro Brandão Lopes-Martins
- 6 Postgraduate Program in Biomedical Engineering, Technological Research Center , Universidade de Mogi das Cruzes, São Paulo, Brazil .,7 Department of Bioengineering, Universidade Brasil , São Paulo, Brazil
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107
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108
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Fluoroquinolones and the Risk of Achilles Tendon Disorders: Update on a Neglected Complication. Urology 2017; 113:20-25. [PMID: 29074337 DOI: 10.1016/j.urology.2017.10.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 09/09/2017] [Accepted: 10/10/2017] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the current evidence and to identify associated risk factors that increase the incidence of this complication. Fluoroquinolone (FQ) has been considered the first-line therapy for uncomplicated urinary infections. FQ has been associated with Achilles tendon disorders, especially during the first month of treatment. METHODS Data sources searched included PubMed, MEDLINE, and Scopus from January 1988 to June 2017. RESULTS A total of 79 articles were used, with ciprofloxacin representing the most common drug. CONCLUSION We found that male gender, advanced age, normal body mass index, chronic renal failure, and concurrent use of corticosteroids increase the risk of Achilles tendon disorders.
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109
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Bordvik DH, Haslerud S, Naterstad IF, Lopes-Martins RAB, Leal Junior ECP, Bjordal JM, Joensen J. Penetration Time Profiles for Two Class 3B Lasers inIn SituHuman Achilles at Rest and Stretched. Photomed Laser Surg 2017; 35:546-554. [DOI: 10.1089/pho.2016.4257] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Daniel Huseby Bordvik
- NorPhyPain Research Group, Faculty of Health and Social Sciences, Centre for Evidence Based Practice, Bergen University College, Bergen, Norway
- Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Haugesund Rheumatological Hospital, Rehabilitation West A/S, Haugesund, Norway
| | - Sturla Haslerud
- NorPhyPain Research Group, Faculty of Health and Social Sciences, Centre for Evidence Based Practice, Bergen University College, Bergen, Norway
- Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Ingvill Fjell Naterstad
- NorPhyPain Research Group, Faculty of Health and Social Sciences, Centre for Evidence Based Practice, Bergen University College, Bergen, Norway
- Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Rodrigo Alvaro Brandão Lopes-Martins
- Nucleous of Technological Research—NPT, Post-Graduate Program in Biomedical Engineering, University of Mogi das Cruzes (UMC), Mogi das Cruzes, São Paulo, Brazil
| | | | - Jan Magnus Bjordal
- NorPhyPain Research Group, Faculty of Health and Social Sciences, Centre for Evidence Based Practice, Bergen University College, Bergen, Norway
- Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Occupational Therapy, Physiotherapy and Radiography, Bergen University College, Bergen, Norway
| | - Jon Joensen
- NorPhyPain Research Group, Faculty of Health and Social Sciences, Centre for Evidence Based Practice, Bergen University College, Bergen, Norway
- Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Occupational Therapy, Physiotherapy and Radiography, Bergen University College, Bergen, Norway
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110
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Yan R, Gu Y, Ran J, Hu Y, Zheng Z, Zeng M, Heng BC, Chen X, Yin Z, Chen W, Shen W, Ouyang H. Intratendon Delivery of Leukocyte-Poor Platelet-Rich Plasma Improves Healing Compared With Leukocyte-Rich Platelet-Rich Plasma in a Rabbit Achilles Tendinopathy Model. Am J Sports Med 2017; 45:1909-1920. [PMID: 28301205 DOI: 10.1177/0363546517694357] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Chronic tendinopathy is a commonly occurring clinical problem that affects both athletes and inactive middle-aged patients. Although some studies have shown that different platelet-rich plasma (PRP) preparations could exert various therapeutic effects in vitro, the role of leukocytes in PRP has not yet been defined under tendinopathy conditions in vivo. PURPOSE This study compared the effects of the intratendon delivery of leukocyte-poor PRP (Lp-PRP) versus leukocyte-rich PRP (Lr-PRP) in a rabbit chronic tendinopathy model in vivo. STUDY DESIGN Controlled laboratory study. METHODS Four weeks after a local injection of collagenase in the Achilles tendon, the following treatments were randomly administered on the lesions: injections of (1) 200 μL of Lp-PRP (n = 8), (2) 200 μL of Lr-PRP (n = 8), or (3) 200 μL of saline (n = 8). Healing outcomes were assessed at 4 weeks after therapy with magnetic resonance imaging (MRI), cytokine quantification, real-time polymerase chain reaction analysis of gene expression, histology, and transmission electron microscopy (TEM). RESULTS MRI revealed that the Lr-PRP and saline groups displayed higher signal intensities compared with the Lp-PRP group with T2 mapping. Histologically, the Lp-PRP group displayed significantly better general scores compared with the Lr-PRP ( P = .001) and saline ( P < .001) groups. Additionally, TEM showed that the Lp-PRP group had larger collagen fibril diameters than the Lr-PRP group ( P < .001). Enzyme-linked immunosorbent assay showed a significantly lower level of catabolic cytokine IL-6 in the Lp-PRP group compared with the Lr-PRP ( P = .001) and saline ( P = .021) groups. The Lp-PRP group displayed significantly increased expression of collagen I compared with the saline group ( P = .004) but not the Lr-PRP group. Both the Lp-PRP and Lr-PRP groups exhibited significantly lower matrix metalloproteinase (MMP)-1 and MMP-3 expression levels compared with the saline group. However, only the Lp-PRP group displayed significantly higher expression of TIMP-1 than the saline group ( P = .024). CONCLUSION Compared with Lr-PRP, Lp-PRP improves tendon healing and is a preferable option for the clinical treatment of tendinopathy. CLINICAL RELEVANCE PRP is widely used in the clinical management of chronic tendinopathy. However, the clinical results are ambiguous. It is imperative to understand the influence of leukocytes on PRP-mediated tissue healing in vivo, which could facilitate the better clinical management of chronic tendinopathy. Further studies are needed to translate our findings to the clinical setting.
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Affiliation(s)
- Ruijian Yan
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yanjia Gu
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jisheng Ran
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yejun Hu
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zefeng Zheng
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mengfeng Zeng
- Zhejiang Xingyue Biotechnology Co Ltd, Hangzhou, China
| | - Boon Chin Heng
- Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Xiao Chen
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,China Orthopaedic Regenerative Medicine Group, Hangzhou, China
| | - Zi Yin
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weishan Chen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weiliang Shen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Dr Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,China Orthopaedic Regenerative Medicine Group, Hangzhou, China.,Orthopaedic Research Institute, Zhejiang University, Hangzhou, China
| | - Hongwei Ouyang
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Sports Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,China Orthopaedic Regenerative Medicine Group, Hangzhou, China
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111
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Hansen W, Shim VB, Obst S, Lloyd DG, Newsham-West R, Barrett RS. Achilles tendon stress is more sensitive to subject-specific geometry than subject-specific material properties: A finite element analysis. J Biomech 2017; 56:26-31. [DOI: 10.1016/j.jbiomech.2017.02.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 10/20/2022]
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112
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Risch L, Cassel M, Mayer F. Acute effect of running exercise on physiological Achilles tendon blood flow. Scand J Med Sci Sports 2017; 28:138-143. [PMID: 28294413 DOI: 10.1111/sms.12874] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2017] [Indexed: 11/26/2022]
Abstract
Sonographically detectable intratendinous blood flow (IBF) is found in 50%-88% of Achilles tendinopathy patients as well as in up to 35% of asymptomatic Achilles tendons (AT). Although IBF is frequently associated with tendon pathology, it may also represent a physiological regulation, for example, due to increased blood flow in response to exercise. Therefore, this study aimed to investigate the acute effects of a standardized running exercise protocol on IBF assessed with Doppler ultrasound (DU) "Advanced dynamic flow" in healthy ATs. 10 recreationally active adults (5 f, 5 m; 29±3 years, 1.72±0.12 m, 68±16 kg, physical activity 206±145 minute/wk) with no history of AT pain and inconspicious tendon structure performed 3 treadmill running tasks on separate days (M1-3) with DU examinations directly before and 5, 30, 60, and 120 minutes after exercise. At M1, an incremental exercise test was used to determine the individual anaerobic threshold (IAT). At M2 and M3, participants performed 30- minute submaximal constant load tests (CL1 /CL2 ) with an intensity 5% below IAT. IBF in each tendon was quantified by counting the number of vessels. IBF increased in five ATs from no vessels at baseline to one to four vessels solely detectable 5 minutes after CL1 or CL2 . One AT had persisting IBF (three vessels) throughout all examinations. Fourteen ATs revealed no IBF at all. Prolonged running led to a physiological, temporary appearance of IBF in 25% of asymptomatic ATs. To avoid exercise-induced IBF in clinical practice, DU examinations should be performed after 30 minutes of rest.
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Affiliation(s)
- L Risch
- University Outpatient Clinic, Department Sports Medicine and Sports Orthopaedics, University of Potsdam, Potsdam, Germany
| | - M Cassel
- University Outpatient Clinic, Department Sports Medicine and Sports Orthopaedics, University of Potsdam, Potsdam, Germany
| | - F Mayer
- University Outpatient Clinic, Department Sports Medicine and Sports Orthopaedics, University of Potsdam, Potsdam, Germany
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113
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Abstract
Non-insertional Achilles tendinopathy is a degenerative condition characterised by pain on activity.Eccentric stretching is the most effective treatment.Surgical treatment is reserved for recalcitrant cases.Minimally-invasive and tendinoscopic treatments are showing promising results. Cite this article: Pearce CJ, Tan A. Non-insertional Achilles tendinopathy. EFORT Open Rev 2016;1:383-390. DOI: 10.1302/2058-5241.1.160024.
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Affiliation(s)
| | - Audrey Tan
- Jurong Health Services Pte Ltd, Singapore
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114
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Lui TH. Endoscopic Calcaneoplasty and Achilles Tendoscopy With the Patient in Supine Position. Arthrosc Tech 2016; 5:e1475-e1479. [PMID: 28149742 PMCID: PMC5264240 DOI: 10.1016/j.eats.2016.08.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 08/25/2016] [Indexed: 02/03/2023] Open
Abstract
Insertional and non-insertional Achilles tendinopathy is usually treated conservatively. Surgery is indicated if conservative treatment fails to relieve the pain. Endoscopic surgery has the advantages of less morbidity, a shorter operating time, reduced postoperative pain, and a lower rate of wound and soft-tissue healing problems. Patients will have a short recovery time and quickly resume work and sports because of less soft-tissue disruption. Moreover, the pathology can be better differentiated and precisely treated. Achilles tendoscopy is classically performed with the patient in the prone position, whereas endoscopic calcaneoplasty can be performed with the patient in the prone or supine position. This technical note describes the technique of Achilles tendoscopy and endoscopic calcaneoplasty with the patient in the supine position. This has the advantages of more ergonomic hand motion for the Achilles tendon debridement, easier access to the ventral surface of the Achilles tendon, and better orientation of the inside structures; moreover, concomitant chondral lesions of the ankle can be dealt with arthroscopically.
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Affiliation(s)
- Tun Hing Lui
- Address correspondence to Tun Hing Lui, M.B.B.S.(HK), F.R.C.S.(Edin), F.H.K.A.M., F.H.K.C.O.S., Department of Orthopaedics and Traumatology, North District Hospital, 9 Po Kin Road, Sheung Shui, NT, Hong Kong SAR, China.Department of Orthopaedics and TraumatologyNorth District Hospital9 Po Kin RoadSheung Shui, NTHong Kong SARChina
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115
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116
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Sonoelastography of the Achilles Tendon: Prevalence and Prognostic Value Among Asymptomatic Elite Australian Rules Football Players. Clin J Sport Med 2016; 26:299-306. [PMID: 26513392 DOI: 10.1097/jsm.0000000000000265] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the prevalence of sonographic abnormalities at the mid-Achilles tendon among a cohort of asymptomatic professional football players and to determine whether these sonographic abnormalities predict midportion Achilles tendon symptoms. DESIGN Longitudinal study. SETTING A single competitive season in the Australian Rules Football League. PARTICIPANTS Forty-two elite Australian Rules football players. MAIN OUTCOME MEASURES Using ultrasound and sonoelastography, 42 players were examined at baseline and again 9 months later (postseason) for the existence of intratendinous hypoechogenicity, delamination, softening, and neovascularization. The anterio-posterior (AP) thickness and cross-sectional area (CSA) were measured. Players reporting Achilles tendon pain or with Victorian Institute of Sports Assessment-Achilles scores below 80 at the end of the season were classified as symptomatic. RESULTS At preseason, ultrasound and/or sonoelastographic abnormalities were found in 22 (22/42, 52.4%) asymptomatic players. Baseline AP thickness and CSA were significantly greater in symptomatic players at the end season than those in asymptomatic players (0.57 ± 0.05 cm vs 0.50 ± 0.03 cm; P < 0.001 and 0.67 ± 0.07 cm vs 0.57 ± 0.06 cm; P < 0.001, respectively). The presence of intratendinous softening and delaminations at baseline was associated with pain onset during the season (P = 0.046; P = 0.048, respectively). CONCLUSIONS Ultrasound and sonoelastography-detected abnormalities were relatively common among the asymptomatic footballers. Greater AP thickness and CSA and also the presence of intratendinous softening and delaminations were associated with the increased risk of developing symptoms. CLINICAL RELEVANCE Conventional ultrasound supplement with sonoelastography may be able to identify elite athletes at risk of Achilles tendon injury, which may, in turn, impact therapeutic decisions.
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117
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Yang G, Lin H, Rothrauff BB, Yu S, Tuan RS. Multilayered polycaprolactone/gelatin fiber-hydrogel composite for tendon tissue engineering. Acta Biomater 2016; 35:68-76. [PMID: 26945631 DOI: 10.1016/j.actbio.2016.03.004] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/26/2016] [Accepted: 03/01/2016] [Indexed: 01/17/2023]
Abstract
Regeneration of injured tendon and ligament (T&L) remains a clinical challenge due to their poor intrinsic healing capacity. Tissue engineering provides a promising alternative treatment approach to facilitate T&L healing and regeneration. Successful tendon tissue engineering requires the use of three-dimensional (3D) biomimetic scaffolds that possess the physical and biochemical features of native tendon tissue. We report here the development and characterization of a novel composite scaffold fabricated by co-electrospinning of poly-ε-caprolactone (PCL) and methacrylated gelatin (mGLT). We found that photocrosslinking retained mGLT, resulted in a uniform distribution of mGLT throughout the depth of scaffold and also preserved scaffold mechanical strength. Moreover, photocrosslinking was able to integrate stacked scaffold sheets to form multilayered constructs that mimic the structure of native tendon tissues. Importantly, cells impregnated into the constructs remained responsive to topographical cues and exogenous tenogenic factors, such as TGF-β3. The excellent biocompatibility and highly integrated structure of the scaffold developed in this study will allow the creation of a more advanced tendon graft that possesses the architecture and cell phenotype of native tendon tissues. STATEMENT OF SIGNIFICANCE The clinical challenges in tendon repair have spurred the development of tendon tissue engineering approaches to create functional tissue replacements. In this study, we have developed a novel composite scaffold as a tendon graft consisting of aligned poly-ε-caprolactone (PCL) microfibers and methacrylated gelatin (mGLT). Cell seeding and photocrosslinking between scaffold layers can be performed simultaneously to create cell impregnated multilayered constructs. This cell-scaffold construct combines the advantages of PCL nanofibrous scaffolds and photocrosslinked gelatin hydrogels to mimic the structure, mechanical anisotropy, and cell phenotype of native tendon tissue. The scaffold engineered here as a building block for multilayer constructs should have applications beyond tendon tissue engineering in the fabrication of tissue grafts that consist of both fibrous and hydrogel components.
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118
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Khayyeri H, Longo G, Gustafsson A, Isaksson H. Comparison of structural anisotropic soft tissue models for simulating Achilles tendon tensile behaviour. J Mech Behav Biomed Mater 2016; 61:431-443. [PMID: 27108350 DOI: 10.1016/j.jmbbm.2016.04.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/25/2016] [Accepted: 04/05/2016] [Indexed: 10/21/2022]
Abstract
The incidence of tendon injury (tendinopathy) has increased over the past decades due to greater participation in sports and recreational activities. But little is known about the aetiology of tendon injuries because of our limited knowledge in the complex structure-function relationship in tendons. Computer models can capture the biomechanical behaviour of tendons and its structural components, which is essential for understanding the underlying mechanisms of tendon injuries. This study compares three structural constitutive material models for the Achilles tendon and discusses their application on different biomechanical simulations. The models have been previously used to describe cardiovascular tissue and articular cartilage, and one model is novel to this study. All three constitutive models captured the tensile behaviour of rat Achilles tendon (root mean square errors between models and experimental data are 0.50-0.64). They further showed that collagen fibres are the main load-bearing component and that the non-collagenous matrix plays a minor role in tension. By introducing anisotropic behaviour also in the non-fibrillar matrix, the new biphasic structural model was also able to capture fluid exudation during tension and high values of Poisson׳s ratio that is reported in tendon experiments.
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Affiliation(s)
- Hanifeh Khayyeri
- Department of Biomedical Engineering, Lund University, BMC D13, 22184 Lund, Sweden.
| | - Giacomo Longo
- Department of Biomedical Engineering, Lund University, BMC D13, 22184 Lund, Sweden
| | - Anna Gustafsson
- Department of Biomedical Engineering, Lund University, BMC D13, 22184 Lund, Sweden
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, BMC D13, 22184 Lund, Sweden
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119
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Mani-Babu S, Morrissey D, Waugh C, Screen H, Barton C. The effectiveness of extracorporeal shock wave therapy in lower limb tendinopathy: a systematic review. Am J Sports Med 2015; 43:752-61. [PMID: 24817008 DOI: 10.1177/0363546514531911] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND There is accumulating evidence for the effectiveness of extracorporeal shock wave therapy (ESWT) when treating lower limb tendinopathies including greater trochanteric pain syndrome (GTPS), patellar tendinopathy (PT), and Achilles tendinopathy (AT). PURPOSE To evaluate the effectiveness of ESWT for lower limb tendinopathies. STUDY DESIGN Systematic review and meta-analysis. METHODS PubMed (Medline), Embase, Web of Knowledge, Cochrane, and CINAHL were searched from inception to February 2013 for studies of any design investigating the effectiveness of ESWT in GTPS, PT, and AT. Citation tracking was performed using PubMed and Google Scholar. Animal and non-English language studies were excluded. A quality assessment was performed by 2 independent reviewers, and effect size calculations were computed when sufficient data were provided. RESULTS A total of 20 studies were identified, with 13 providing sufficient data to compute effect size calculations. The energy level, number of impulses, number of sessions, and use of a local anesthetic varied between studies. Additionally, current evidence is limited by low participant numbers and a number of methodological weaknesses including inadequate randomization. Moderate evidence indicates that ESWT is more effective than home training and corticosteroid injection in the short (<12 months) and long (>12 months) term for GTPS. Limited evidence indicates that ESWT is more effective than alternative nonoperative treatments including nonsteroidal anti-inflammatory drugs, physical therapy, and an exercise program and equal to patellar tenotomy surgery in the long term for PT. Moderate evidence indicates that ESWT is more effective than eccentric loading for insertional AT and equal to eccentric loading for midportion AT in the short term. Additionally, there is moderate evidence that combining ESWT and eccentric loading in midportion AT may produce superior outcomes to eccentric loading alone. CONCLUSION Extracorporeal shock wave therapy is an effective intervention and should be considered for GTPS, PT, and AT particularly when other nonoperative treatments have failed.
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Affiliation(s)
- Sethu Mani-Babu
- Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK
| | - Dylan Morrissey
- Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK
| | - Charlotte Waugh
- Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK
| | - Hazel Screen
- School of Engineering and Materials Sciences, Queen Mary University of London, London, UK
| | - Christian Barton
- Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK Complete Sports Care, Melbourne, Australia Pure Sports Medicine, London, UK Lower Extremity Gait Studies, La Trobe University, Melbourne, Australia
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120
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Affiliation(s)
- Nicola Maffulli
- Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, 275 Bancroft Road, London E1 4DG, United Kingdom
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121
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Lewis T, Cook J. Fluoroquinolones and tendinopathy: a guide for athletes and sports clinicians and a systematic review of the literature. J Athl Train 2014; 49:422-7. [PMID: 24762232 DOI: 10.4085/1062-6050-49.2.09] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
CONTEXT Fluoroquinolone antibiotics have been used for several decades and are effective antimicrobials. Despite their usefulness as antibiotics, a growing body of evidence has accumulated in the peer-reviewed literature that shows fluoroquinolones can cause pathologic lesions in tendon tissue (tendinopathy). These adverse effects can occur within hours of commencing treatment and months after discontinuing the use of these drugs. In some cases, fluoroquinolone usage can lead to complete rupture of the tendon and substantial subsequent disability. OBJECTIVE To discuss the cause, pharmacology, symptoms, and epidemiology of fluoroquinolone-associated tendinopathy and to discuss the clinical implications with respect to athletes and their subsequent physiotherapy. DATA SOURCES We searched MEDLINE, Cumulative Index to Nursing and Allied Health (CINAHL), Allied and Complementary Medicine Database (AMED), and SPORTDiscus databases for available reports of fluoroquinolone-related tendinopathy (tendinitis, tendon pain, or rupture) published from 1966 to 2012. Search terms were fluoroquinolones or quinolones and tendinopathy, adverse effects, and tendon rupture. Included studies were written in or translated into English. Non-English-language and non-English translations of abstracts from reports were not included (n = 1). STUDY SELECTION Eligible studies were any available reports of fluoroquinolone-related tendinopathy (tendinitis, tendon pain, or rupture). Both animal and human histologic studies were included. Any papers not focusing on the tendon-related side effects of fluoroquinolones were excluded (n = 71). DATA EXTRACTION Data collected included any cases of fluoroquinolone-related tendinopathy, the particular tendon affected, type of fluoroquinolone, dosage, and concomitant risk factors. Any data outlining the adverse histologic effects of fluoroquinolones also were collected. DATA SYNTHESIS A total of 175 papers, including 89 case reports and 8 literature reviews, were identified. CONCLUSIONS Fluoroquinolone tendinopathy may not respond well to the current popular eccentric training regimes and may require an alternative, staged treatment approach. Clinicians, athletes, athletic trainers, and their medical support teams should be aware of the need to discuss and possibly discontinue these antibiotics if adverse effects arise.
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Affiliation(s)
- Trevor Lewis
- Physiotherapy Department, Aintree University Hospital National Health Service Foundation Trust, University Hospital Aintree, Liverpool, United Kingdom
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122
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Lin HA, Chong HA, Yeo W. Calcaneoplasty and reattachment of the Achilles tendon for insertional tendinopathy. J Orthop Surg (Hong Kong) 2014; 22:56-9. [PMID: 24781615 DOI: 10.1177/230949901402200115] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To report the one-year outcome of 44 patients treated with a novel technique of calcaneoplasty and reattachment of the Achilles tendon. METHODS 15 men and 29 women (mean age, 53 years) with insertional tendinopathy of the Achilles tendon underwent calcaneoplasty, retrocalcaneal bursa excision, debridement and reattachment of the Achilles tendon with suture anchors via a lateral approach. Outcome was measured using the visual analogue score (VAS) for pain, the SF-36 health survey, the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scores. Patient expectation and satisfaction were also assessed. RESULTS Of the 44 patients, 37, 43, and 21 were followed up at 3, 6, and 12 months. The mean VAS for pain and AOFAS ankle-hindfoot score improved significantly up to 6 months. The mean SF-36 score improved significantly up to 6 months for physical functioning, role functioning (physical), and bodily pain. Patient expectation and satisfaction also improved significantly. No patient had postoperative infections or rupture. Three patients had delayed wound healing, which resolved after simple dressings. CONCLUSION Calcaneoplasty and reattachment of the Achilles tendon via a lateral approach for insertional tendinopathy enables early weight bearing and achieves good outcome and pain relief.
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Affiliation(s)
- Heng An Lin
- Department of Orthopaedic Surgery, Singapore General Hospital, Singapore
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123
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Hanna T, Dripchak P, Childress T. Chronic achilles rupture repair by allograft with bone block fixation: technique tip. Foot Ankle Int 2014; 35:168-74. [PMID: 24311740 DOI: 10.1177/1071100713514037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Timothy Hanna
- Kentucky Podiatric Residency Program, Louisville, KY, USA
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124
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Lichtwark GA, Cresswell AG, Newsham-West RJ. Effects of running on human Achilles tendon length-tension properties in the free and gastrocnemius components. ACTA ACUST UNITED AC 2013; 216:4388-94. [PMID: 24031068 DOI: 10.1242/jeb.094219] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The elastic properties of the human Achilles tendon are important for locomotion; however, in vitro tests suggest that repeated cyclic contractions lead to tendon fatigue - an increase in length in response to stress applied. In vivo experiments have not, however, demonstrated mechanical fatigue in the Achilles tendon, possibly due to the limitations of using two-dimensional ultrasound imaging to assess tendon strain. This study used freehand three-dimensional ultrasound (3DUS) to determine whether the free Achilles tendon (calcaneus to soleus) or the gastrocnemius tendon (calcaneus to gastrocnemius) demonstrated tendon fatigue after running exercise. Participants (N=9) underwent 3DUS scans of the Achilles tendon during isometric contractions at four ankle torque levels (passive, and 14, 42 and 70 N m) before and after a 5 km run at a self-selected pace (10-14 km h(-1)). Running had a significant main effect on the length of the free Achilles tendon (P<0.01) with a small increase in length across the torque range. However, the mean lengthening effect was small (<1%) and was not accompanied by a change in free tendon stiffness. There was no significant change in the length of the gastrocnemius tendon or the free tendon cross-sectional area. While the free tendon was shown to lengthen, the lack of change in stiffness suggests the tendon exhibited mechanical creep rather than fatigue. These effects were much smaller than those predicted from in vitro experiments, possibly due to the different loading profile encountered and the ability of the tendon to repair in vivo.
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Affiliation(s)
- Glen A Lichtwark
- Centre for Sensorimotor Neuroscience, The School of Human Movement Studies, The University of Queensland, St Lucia 4072, Australia
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125
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Precerutti M, Bonardi M, Ferrozzi G, Draghi F. Sonographic anatomy of the ankle. J Ultrasound 2013; 17:79-87. [PMID: 24883130 DOI: 10.1007/s40477-013-0025-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 04/21/2013] [Indexed: 11/29/2022] Open
Abstract
Ankle sonography is one of the most commonly ordered examinations in the field of osteoarticular imaging, and it requires intimate knowledge of the anatomic structures that make up the joint. For practical purposes, the examination can be divided into four compartments, which are analyzed in this pictorial essay: the anterior compartment, which includes the tibialis anterior, extensor hallucis longus, and extensor digitorum longus tendons; the accessory peroneus tertius tendon; and the extensor retinaculum; the medial compartment (tibialis posterior, flexor digitorum longus, and flexor hallucis longus tendons; the flexor retinaculum; the medial collateral-or deltoid-ligament, and the neurovascular bundle); the lateral compartment (peroneus longus, peroneus brevis, and peroneus quartus tendons; superior and inferior peroneal retinacula, lateral collateral ligament); and the posterior compartment (Achilles tendon, plantaris tendon, Kagar's triangle, superficial, and deep retrocalcaneal bursae). Scanning techniques are briefly described to ensure optimal visualization of the various anatomic structures.
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Affiliation(s)
- M Precerutti
- AO Provincia di Pavia, Ospedale Civile di Voghera, Voghera, Italy
| | - M Bonardi
- Fondazione IRCCS, Policlinico San Matteo di Pavia, UO Radiodiagnostica, Pavia, Italy
| | - G Ferrozzi
- Dipartimento di Radiologia, Ospedale Guglielmo da Saliceto, Piacenza, Italy
| | - F Draghi
- Istituto di Radiologia, Policlinico San Matteo, Università di Pavia, Pavia, Italy
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126
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Nakamoto A, Sato T, Hirosawa N, Nakamoto N, Enoki Y, Chida D, Usui M, Takeda S, Nagai T, Sasaki A, Sakamoto Y, Yoda T. Proteomics-based identification of novel proteins in temporal tendons of patients with masticatory muscle tendon--aponeurosis hyperplasia. Int J Oral Maxillofac Surg 2013; 43:113-9. [PMID: 23870541 DOI: 10.1016/j.ijom.2013.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 06/02/2013] [Accepted: 06/06/2013] [Indexed: 11/26/2022]
Abstract
Masticatory muscle tendon-aponeurosis hyperplasia (MMTAH) is a new disease associated with limited mouth opening that is often misdiagnosed as a temporomandibular disorder; subsequently, patients are mistakenly treated with irreversible operations. Due to the poor presentation and characterization of symptoms, the underlying pathological conditions remain unclear. We have previously conducted a proteomic analysis of tendons derived from one MMTAH subject and one facial deformity subject using two-dimensional fluorescence difference gel electrophoresis and liquid chromatography coupled with tandem mass spectrometry. However, the results were obtained for only one subject. The aim of the present study was to confirm the expression of specific molecules in tendon tissues from multiple subjects with MMTAH by applying two-dimensional polyacrylamide gel electrophoresis with matrix-assisted laser desorption ionization time-of-flight mass spectrometry. Of the 19 proteins identified in tendons from both MMTAH and facial deformity patients, fibrinogen fragment D and beta-crystallin A4 were up-regulated, whereas myosin light chain 4 was down-regulated in MMTAH. We also found fibrinogen to be expressed robustly in tendon tissues of MMTAH patients. Our data provide the possibility that the distinctive expression of these novel proteins is associated with the pathology of MMTAH.
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Affiliation(s)
- A Nakamoto
- Department of Oral and Maxillofacial Surgery, Saitama Medical University, Saitama, Japan
| | - T Sato
- Department of Oral and Maxillofacial Surgery, Saitama Medical University, Saitama, Japan.
| | - N Hirosawa
- Department of Biomedical Research Center, Division of Analytical Science, Saitama Medical University, Saitama, Japan
| | - N Nakamoto
- Department of Oral and Maxillofacial Surgery, Saitama Medical University, Saitama, Japan
| | - Y Enoki
- Department of Oral and Maxillofacial Surgery, Saitama Medical University, Saitama, Japan
| | - D Chida
- Department of Oral and Maxillofacial Surgery, Saitama Medical University, Saitama, Japan
| | - M Usui
- Department of Periodontology, Kyushu Dental College, Kitakyushu City, Fukuoka, Japan
| | - S Takeda
- Division of Endocrinology, Metabolism and Nephrology, Keio University, Tokyo, Japan
| | - T Nagai
- Department of Pathology, Saitama Medical University, Saitama, Japan
| | - A Sasaki
- Department of Pathology, Saitama Medical University, Saitama, Japan
| | - Y Sakamoto
- Department of Biomedical Research Center, Division of Analytical Science, Saitama Medical University, Saitama, Japan
| | - T Yoda
- Department of Oral and Maxillofacial Surgery, Saitama Medical University, Saitama, Japan
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Outcomes After Ultrasound-Guided Platelet-Rich Plasma Injections for Chronic Tendinopathy: A Multicenter, Retrospective Review. PM R 2013; 5:169-75. [DOI: 10.1016/j.pmrj.2012.12.010] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 12/21/2012] [Accepted: 12/30/2012] [Indexed: 11/21/2022]
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128
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Wang HK, Lin KH, Su SC, Shih TTF, Huang YC. Effects of tendon viscoelasticity in Achilles tendinosis on explosive performance and clinical severity in athletes. Scand J Med Sci Sports 2012; 22:e147-55. [DOI: 10.1111/j.1600-0838.2012.01511.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2012] [Indexed: 11/29/2022]
Affiliation(s)
- H.-K. Wang
- School and Graduate Institute of Physical Therapy; College of Medicine; National Taiwan University; Taipei; Taiwan
| | - K.-H. Lin
- School and Graduate Institute of Physical Therapy; College of Medicine; National Taiwan University; Taipei; Taiwan
| | - S.-C. Su
- Department of Business Administration; Hwa Hsia Institute of Technology; Taipei; Taiwan
| | | | - Y.-C. Huang
- Department of Physical Medicine and Rehabilitation; Chen Hsin Rehabilitation Medical Center; Taipei; Taiwan
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129
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Fox AJS, Bedi A, Deng XH, Ying L, Harris PE, Warren RF, Rodeo SA. Diabetes mellitus alters the mechanical properties of the native tendon in an experimental rat model. J Orthop Res 2011; 29:880-5. [PMID: 21246619 PMCID: PMC5243138 DOI: 10.1002/jor.21327] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 11/09/2010] [Indexed: 02/04/2023]
Abstract
The purpose of this study was to determine the effect of the diabetic phenotype on the mechanical properties of the native patellar tendon and its enthesis. Diabetes was induced via intraperitoneal injection of streptozotocin in Lewis rats. Control (n = 18) and diabetic animals (n = 20) were killed at 12 and 19 days for analysis. Statistical comparisons were performed using Student's t-tests and a two-tailed Fisher test with significance set at p < 0.05. Pre- and post-injection intraperitoneal glucose tolerance tests demonstrated significant impairment of glycemic control in the diabetic compared to control animals (p = 0.001). Mean serum hemoglobin A1c levels at 19 days was 10.6 ± 2.7% and 6.0 ± 1.0% for the diabetic and control groups, respectively (p = 0.0001). Fifteen of sixteen diabetic animals demonstrated intrasubstance failure of the patellar tendon, while only 7 of 14 control specimens failed within the tendon substance. The Young's modulus of the diabetic tendon was significantly lower than control specimens by 19 days post-induction (161 ± 10 N m(-2) compared to 200 ± 46 N m(-2) , respectively) (p = 0.02). The metabolic condition of poorly controlled diabetes negatively affects the mechanical properties of the native patellar tendon. These altered structural properties may predispose diabetic patients to a greater risk of tendinopathy and/or traumatic rupture.
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Affiliation(s)
- Alice J. S. Fox
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021
| | - Asheesh Bedi
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021,Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, 10021
| | - Xiang-Hua Deng
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021
| | - Liang Ying
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021
| | - Paul E. Harris
- Columbia University, Black Building 20-06, 650 West 168th Street, New York, New York 10032
| | - Russell F. Warren
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021,Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, 10021
| | - Scott A. Rodeo
- Laboratory for Soft Tissue Research, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021,Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, 10021
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130
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Wyndow N, Cowan SM, Wrigley TV, Crossley KM. Neuromotor Control of the Lower Limb in Achilles Tendinopathy. Sports Med 2010; 40:715-27. [DOI: 10.2165/11535920-000000000-00000] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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131
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Wijesekera NT, Chew NS, Lee JC, Mitchell AW, Calder JD, Healy JC. Ultrasound-guided treatments for chronic Achilles tendinopathy: an update and current status. Skeletal Radiol 2010; 39:425-34. [PMID: 20119832 DOI: 10.1007/s00256-009-0873-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/24/2009] [Accepted: 12/28/2009] [Indexed: 02/02/2023]
Abstract
Minimally-invasive treatments for chronic Achilles tendinopathy may prevent the need for surgery when conservative methods have failed. Whilst injections have traditionally been used to manage symptoms, recently described therapies may also have disease-modifying potential. Ultrasound provides the ability to guide therapeutic interventions, ensuring that treatment is delivered to the exact site of pathology. Treatments can be broadly categorised according to their intended therapeutic targets, although some may act through several possible mechanisms. In this article, we review the ultrasound-guided techniques currently used to treat chronic Achilles tendinopathy, with reference to the available literature. There is strong pilot-level evidence supporting the use of many of these techniques, although large definitive trials are lacking. An approach towards the management of chronic Achilles tendinopathy is suggested.
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Affiliation(s)
- Nevin T Wijesekera
- Department of Radiology, Chelsea and Westminster Hospital, 369 Fulham Road, London SW109NH, UK
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132
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Abstract
BACKGROUND The pathogenesis of chronic tendinopathy is unclear but it does not appear to be an inflammatory process. Apoptosis may lead to degenerate tissue through a nitric oxide-mediated pathway. Increased levels of nitric oxide have been demonstrated in Achilles tendinopathy. HYPOTHESIS Nitric oxide-mediated apoptosis is an important mechanism in the development of Achilles tendinopathy. STUDY DESIGN Controlled laboratory study. METHODS Samples were obtained from the Achilles tendons of 14 patients with noninsertional Achilles tendinopathy. Control samples were taken from macroscopically normal tendon correlating with areas of normal tissue on magnetic resonance imaging. Immunohistochemical techniques identified the expression of inducible and endothelial nitric oxide synthase as markers of nitric oxide production. Apoptotic cells were identified using terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) and the demonstration of caspase-3 activation. RESULTS Significant differences were found between the diseased tendon and the controls for all parameters. The mean caspase-3 cell count for diseased tendon was 51.9 versus 28.3 for the controls (P < .001). The mean TUNEL cell count for diseased tendon was 24.1 compared with 14.8 (P < .001). Inducible nitric oxide synthase (iNOS) densitometry revealed a mean of 26.1 for the diseased tissue versus 15.0 for the controls (P < .001) and the values for endothelial nitric oxide synthase (eNOS) were 48.3 and 23.7, respectively (P = .015). CONCLUSION Apoptosis may play a role in the development of noninsertional Achilles tendinopathy and appears to be related to the presence of raised eNOS and iNOS levels. CLINICAL RELEVANCE A clearer understanding of the tendinopathic process may lead to new treatment strategies aimed at modulating apoptosis.
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Affiliation(s)
- Christopher J Pearce
- Department of Trauma and Orthopaedic Surgery, Basingstoke and North Hampshire Hospitals, NHS Foundation Trust, Basingstoke, United Kingdom.
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Joseph M, Maresh CM, McCarthy MB, Kraemer WJ, Ledgard F, Arciero CL, Anderson JM, Nindl BC, Mazzocca AD. Histological and molecular analysis of the biceps tendon long head post-tenotomy. J Orthop Res 2009; 27:1379-85. [PMID: 19340876 DOI: 10.1002/jor.20868] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Tendinopathy is a vexing clinical problem as its onset and development is often asymptomatic and unrecognized until tendon rupture. While extensively studied in the rotator cuff, Achilles, and patellar tendons, no study to date has examined the histological and molecular characteristics of the tendinopathic biceps long-head (LHB). The anatomy of the LHB is unique in that it comprises intra- and extra-articular portions, each exposed to differing loading patterns. Eleven LHBs post-tenotomy were sectioned, fixed in formalin, and stained (H and E; Alcian Blue), and gross structural organization of collagen measured using polarized light microscopy. Protein expression of intra- and extra-articular portions of the tenotomized biceps for IGF-I, collagen III, and MMP-1, -2, -3, and -13 was determined with Western blot analyses. The intra-articular LHB exhibited significantly greater histological evidence of tendinopathy inclusive of increased proteoglycan (p < 0.05) and decreased organization as measured by polarized light microscopy (p < 0.01). The intra-articular LHB also had significantly increased expression of collagen type III (p < 0.01) and of MMP-1 and 3 (p < 0.01, p < 0.05 respectively). No significant differences were found for IGF-I or for MMP-2 and -13. The intra-articular LHB exhibited histological characteristics of tendinopathy. Protein expression of the intra-articular LHB did not universally display signs of tendinopathy in comparison to the extra-articular portion of the tendon.
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Affiliation(s)
- Michael Joseph
- Department of Kinesiology, The University of Connecticut, Storrs, Connecticut, USA.
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134
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Longo UG, Franceschi F, Ruzzini L, Rabitti C, Morini S, Maffulli N, Forriol F, Denaro V. Light microscopic histology of supraspinatus tendon ruptures. Knee Surg Sports Traumatol Arthrosc 2007; 15:1390-4. [PMID: 17721701 DOI: 10.1007/s00167-007-0395-8] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Accepted: 07/10/2007] [Indexed: 01/08/2023]
Abstract
We analysed the morphological features of the human surgical specimens of supraspinatus tendon from patients with rotator cuff tears. Tendon samples were harvested from 31 subjects (21 men and 10 women; mean age 51 years, range 38-64) who underwent arthroscopic repair of a rotator cuff tear, and from five male patients who died of cardiovascular events (mean age, 69.6 years). Histological examination was performed using Haematoxylin and Eosin, Masson's Trichrome and Van Gieson's connective tissue stain. The specimens were examined twice by the same examiner under white light and polarized light microscopy. Particular effort was made to assess any evidence of the changes associated with tendinopathy. Within each specific category of tendon abnormalities, the chi-square test showed significant differences between the control and ruptured tendons (P < 0.05). Using the kappa statistics, the agreement between the two readings ranged from 0.57 to 0.84. We found thinning and disorientation of collagen fibres and chondroid metaplasia to be more pronounced on the articular side of the specimens from patients with rotator cuff tear (P < 0.05). The present study provides a description of the histological architecture of human surgical specimens of normal supraspinatus tendon from patients with rotator cuff tears and demonstrates more frequent tendon changes on the articular side of the rotator cuff.
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Affiliation(s)
- Umile Giuseppe Longo
- Department of Orthopaedic and Trauma Surgery, Campus Biomedico University, Via Longoni, 83, 00155 Rome, Italy.
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136
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Rompe JD, Nafe B, Furia JP, Maffulli N. Eccentric loading, shock-wave treatment, or a wait-and-see policy for tendinopathy of the main body of tendo Achillis: a randomized controlled trial. Am J Sports Med 2007; 35:374-83. [PMID: 17244902 DOI: 10.1177/0363546506295940] [Citation(s) in RCA: 206] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Few randomized controlled trials compare different methods of management in chronic tendinopathy of the main body of tendo Achillis. PURPOSE To compare the effectiveness of 3 management strategies-group 1, eccentric loading; group 2, repetitive low-energy shock-wave therapy (SWT); and group 3, wait and see-in patients with chronic tendinopathy of the main body of tendo Achillis. STUDY DESIGN Randomized controlled trial; Level of evidence, 1. METHODS Seventy-five patients with a chronic recalcitrant (>6 months) noninsertional Achilles tendinopathy were enrolled in a randomized controlled study. All patients had received unsuccessful management for >3 months, including at least (1) peritendinous local injections, (2) nonsteroidal anti-inflammatory drugs, and (3) physiotherapy. A computerized random-number generator was used to draw up an allocation schedule. Analysis was on intention-to-treat basis. RESULTS At 4 months from baseline, the Victorian Institute of Sport Assessment (VISA)-A score increased in all groups, from 51 to 76 points in group 1 (eccentric loading), from 50 to 70 points in group 2 (repetitive low-energy SWT), and from 48 to 55 points in group 3 (wait and see). Pain rating decreased in all groups, from 7 to 4 points in group 1, from 7 to 4 points in group 2, and from 8 to 6 points in group 3. Fifteen of 25 patients in group 1 (60%), 13 of 25 patients in group 2 (52%), and 6 of 25 patients in Group 3 (24%) reported a Likert scale of 1 or 2 points ("completely recovered" or "much improved"). For all outcome measures, groups 1 and 2 did not differ significantly. For all outcome measures, groups 1 and 2 showed significantly better results than group 3. CONCLUSION At 4-month follow-up, eccentric loading and low-energy SWT showed comparable results. The wait-and-see strategy was ineffective for the management of chronic recalcitrant tendinopathy of the main body of the Achilles tendon.
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Affiliation(s)
- Jan D Rompe
- OrthoTrauma Clinic, Kirchheimer Str. 60, 67269 Gruenstadt, Germany.
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137
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Johnson KW, Zalavras C, Thordarson DB. Surgical management of insertional calcific achilles tendinosis with a central tendon splitting approach. Foot Ankle Int 2006; 27:245-50. [PMID: 16624213 DOI: 10.1177/107110070602700404] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Insertional calcific Achilles tendinosis is a painful, frequently disabling condition. Numerous operative approaches for this problem have been described. This study evaluated the outcome of a central tendon splitting approach. METHODS Twenty-two patients were evaluated after a central tendon splitting approach for persistent insertional calcific Achilles tendinosis. Followup averaged 34 (11 to 64) months. Suture anchors were routinely used to augment the tendon insertion after debridement. An American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot score, shoewear comfort, and return to work were evaluated. A paired t-test was used to evaluate the results. RESULTS Pain significantly improved from 7 points preoperatively to 33 points postoperatively (p < 0.001). Function improved significantly from 36 points to 46 points (p < 0.001). The ankle-hindfoot score improved from 53 points to 89 points (p < 0.001). Age older or younger than 50 years did not affect outcome. CONCLUSION A central tendon splitting approach yielded good relief of pain with improved function, shoewear, and ability to work without painful postoperative scars.
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Affiliation(s)
- Keith W Johnson
- Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
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