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Dahlgren D, Borg K, Melin E. Post-polio syndrome - somatosensory dysfunction and its relation to pain: a pilot study with quantitative sensory testing. J Rehabil Med 2024; 56:jrm26192. [PMID: 38915293 PMCID: PMC11218677 DOI: 10.2340/jrm.v56.26192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 05/17/2024] [Indexed: 06/26/2024] Open
Abstract
OBJECTIVE To explore and characterize somatosensory dysfunction in patients with post-polio syndrome and chronic pain, by conducting examinations with Quantitative Sensory Testing. DESIGN A cross-sectional, descriptive, pilot study conducted during 1 month. SUBJECTS/PATIENTS Six patients with previously established post-polio syndrome and related chronic pain. METHODS All subjects underwent a neurological examination including neuromuscular function, bedside sensory testing, a thorough pain anamnesis, and pain drawing. Screening for neuropathic pain was done with 2 questionnaires. A comprehensive Quantitative Sensory Testing battery was conducted with z-score transformation of obtained data, enabling comparison with published reference values and the creation of sensory profiles, as well as comparison between the study site (more polio affected extremity) and internal control site (less affected extremity) for each patient. RESULTS Derived sensory profiles showed signs of increased prevalence of sensory aberrations compared with reference values, especially Mechanical Pain Thresholds, with significant deviation from reference data in 5 out of 6 patients. No obvious differences in sensory functions were seen between study sites and internal control sites. CONCLUSION Post-polio syndrome may be correlated with a mechanical hyperalgesia/allodynia and might be correlated to a somatosensory dysfunction. With lack of evident side-to-side differences, the possibility of a generalized dysfunction in the somatosensory system might be considered.
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Affiliation(s)
- Daniel Dahlgren
- Department of Rehabilitation Medicine, Danderyd University Hospital, Stockholm, Sweden
| | - Kristian Borg
- Department of Rehabilitation Medicine, Danderyd University Hospital, Stockholm, Sweden; Department of Clinical Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Eva Melin
- Department of Rehabilitation Medicine, Danderyd University Hospital, Stockholm, Sweden; Department of Clinical Sciences, Karolinska Institutet, Stockholm, Sweden.
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Mingels S, Granitzer M, Luedtke K, Dankaerts W. Therapeutic Patient Education as Part of the Physiotherapy Management of Adults with Headache: A Scoping Review. Curr Pain Headache Rep 2024:10.1007/s11916-024-01253-3. [PMID: 38613735 DOI: 10.1007/s11916-024-01253-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2024] [Indexed: 04/15/2024]
Abstract
PURPOSE OF REVIEW Physiotherapy interventions for headache mostly include exercise and manual therapy. Yet, the complex nature of headache, sometimes characterized by symptoms of facilitated central pain mechanisms, demands an individualized approach in which therapeutic patient education could be supportive. This scoping review aimed to summarize the position of therapeutic patient education within the physiotherapy management of adults with headache. PubMed, EMBASE, Web of Science, and Scopus were searched. The search-query comprised terminology relating to "headache", "education", and "physiotherapy". Eligibility criteria were: adults with headache, interventions including education within the domain of physiotherapy, reviews, clinical trials, cohort, case report, case-control studies. RECENT FINDINGS Eleven publications were included from the 281 retrieved publications. These publications were clinical trials (n = 4), reviews (n = 4), case-reports (n = 2), and a guideline (n = 1). Type of headaches studied were migraine (n = 3), post-traumatic headache (n = 2), tension-type headache (n = 2), cervicogenic headache (n = 1), primary headaches (n = 1), chronic daily headache (n = 1), and mixed migraine-cervicogenic headache (n = 1). Education seems an umbrella-term for postural education, lifestyle advice, and pain education. Three themes emerged across the publications: handling headache triggers (migraine, post-traumatic headache), promoting active lifestyle (post-traumatic headache, chronic daily headache, migraine), evaluating posture (post-traumatic headache, chronic daily headache, tension-type headache, cervicogenic headache). All publications recommended education in the management of headache. Only one (of the 11 included) publication described the educational program and determined its efficacy. Based on this scoping review, therapeutic patient education seems supported within physiotherapy management of headache. However, it is unclear how such education is tailored to the specific needs of the individual, the headache subtype, or when it should be added to physiotherapy management of headache.
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Affiliation(s)
- Sarah Mingels
- Musculoskeletal Research Unit, Department of Rehabilitation Sciences, Faculty of Movement and Rehabilitation Sciences, Leuven University, Tervuursevest, 101, 3001, Leuven, Belgium.
- Faculty of Rehabilitation Sciences and Physiotherapy, REVAL Rehabilitation Research Centre, Hasselt University, Hasselt, Belgium.
| | - Marita Granitzer
- Faculty of Rehabilitation Sciences and Physiotherapy, REVAL Rehabilitation Research Centre, Hasselt University, Hasselt, Belgium
| | - Kerstin Luedtke
- Department of Physiotherapy, Pain and Exercise Research, Universität Zu Lübeck, Lübeck, Germany
| | - Wim Dankaerts
- Musculoskeletal Research Unit, Department of Rehabilitation Sciences, Faculty of Movement and Rehabilitation Sciences, Leuven University, Tervuursevest, 101, 3001, Leuven, Belgium
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Llombart R, Mariscal G, Barrios C, Llombart-Ais R. The Best Current Research on Patellar Tendinopathy: A Review of Published Meta-Analyses. Sports (Basel) 2024; 12:46. [PMID: 38393266 PMCID: PMC10893258 DOI: 10.3390/sports12020046] [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: 12/16/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Patellar tendinopathy is a frequent overuse injury in sports that can cause significant pain and disability. It requires evidence-based guidelines on effective prevention and management. However, optimal treatments remain uncertain. We aimed to analyze available meta-analyses to summarize treatment recommendations, compare therapeutic modalities, examine included trials, and offer methodological suggestions to improve future systematic reviews. Meta-analyses were systematically searched for in PubMed (PROSPERO: CRD42023457963). A total of 21 meta-analyses were included. The AMSTAR-2 scale assessed study quality, which was low, with only 23.8% of the meta-analyses being of moderate quality, and none were considered to be of high quality. Heterogeneous outcomes are reported. Multiple platelet-rich plasma (PRP) injections appear superior to eccentric exercises and provide lasting improvements compared to eccentric exercises when conservative treatments fail. Extracorporeal shockwave therapy (ESWT) also seems superior to non-operative options and similar to surgery for patellar tendinopathy in the long term. However, evidence for eccentric exercise efficacy remains unclear due to inconclusive findings. Preliminary findings also emerged for genetic risk factors and diagnostic methods but require further confirmation. This review reveals a lack of high-quality evidence on optimal patellar tendinopathy treatments. While PRP and ESWT show promise, limitations persist. Further rigorous meta-analyses and trials are needed to strengthen the evidence base and guide clinical practice. Methodological enhancements are proposed to improve future meta-analyses.
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Affiliation(s)
- Rafael Llombart
- Orthopedic Surgery Department, University Clinic of Navarra, 31008 Pamplona, Spain
| | - Gonzalo Mariscal
- Institute for Research on Musculoskeletal Disorders, School of Medicine, Valencia Catholic University, 46001 Valencia, Spain
| | - Carlos Barrios
- Institute for Research on Musculoskeletal Disorders, School of Medicine, Valencia Catholic University, 46001 Valencia, Spain
| | - Rafael Llombart-Ais
- Institute for Research on Musculoskeletal Disorders, School of Medicine, Valencia Catholic University, 46001 Valencia, Spain
- Traumacenter, Casa de Salud Hospital, 46021 Valencia, Spain
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Escriche-Escuder A, Nijs J, Silbernagel KG, van Wilgen CP, Plinsinga ML, Casaña J, Cuesta-Vargas AI. Pain neuroscience education in persistent painful tendinopathies: A scoping review from the Tendon PNE Network. Phys Ther Sport 2023; 63:38-49. [PMID: 37499463 DOI: 10.1016/j.ptsp.2023.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023]
Abstract
OBJECTIVE to conduct and report a scoping review of the available evidence of the effects and content of pain neuroscience education for patients with persistent painful tendinopathies. METHODS PubMed, Embase, Web of Science, CINAHL, SPORTDiscus, and grey literature databases were searched from database inception to May 2022. Randomised and non-randomised controlled trials, non-controlled clinical trials, cohort studies, case series, case studies including people with persistent painful tendinopathy aged ≥18 years, a pain education intervention, and in English were included. Studies were excluded if they were cross-sectional studies, reviews, editorials, abstracts, or full-text not available or if included heterogeneous study cohorts, patients with tendon rupture, or patients with systemic diseases. RESULTS five studies (n = 164) were included. Pain neuroscience education entailed face-to-face discussion sessions or educational materials including videos, brochures, paper drawings, and review questions. All studies used pain neuroscience education in conjunction with other interventions, obtaining significant benefits in outcomes related to pain, physical performance, or self-reported function, among others. CONCLUSIONS The application of pain neuroscience education in conjunction with other interventions seemed to improve several outcomes. However, considering the current knowledge about tendon pain and the scarcity of well-designed trials studying pain neuroscience education in tendinopathy, additional research is needed.
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Affiliation(s)
- Adrian Escriche-Escuder
- Department of Physiotherapy, University of Malaga, Malaga, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
| | - Jo Nijs
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Chronic Pain Rehabilitation, Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Belgium; Department of Health and Rehabilitation, Unit of Physiotherapy, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Sweden
| | | | - C Paul van Wilgen
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Transcare Transdisciplinary Pain Management Center, Groningen, the Netherlands
| | - Melanie L Plinsinga
- Menzies Health Institute Queensland, Griffith University, Brisbane, Australia
| | - José Casaña
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
| | - Antonio I Cuesta-Vargas
- Department of Physiotherapy, University of Malaga, Malaga, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain; School of Clinical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia.
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Lyng KD, Sørensen LB, Olesen JL, Rathleff MS, Holden S. Do adolescents with Osgood-Schlatter display nociplastic pain manifestations compared to controls: A cross-sectional study. J Sci Med Sport 2023:S1440-2440(23)00085-3. [PMID: 37391284 DOI: 10.1016/j.jsams.2023.05.005] [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: 07/28/2022] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 07/02/2023]
Abstract
OBJECTIVES Osgood-Schlatter disease is an overuse musculoskeletal pain condition. The pain mechanism is considered nociceptive, but no studies have investigated nociplastic manifestations. This study investigated pain sensitivity and inhibition evaluated through exercise-induced hypoalgesia in adolescents with and without Osgood-Schlatter. DESIGN Cross-sectional study. METHODS Adolescents underwent a baseline assessment comprising clinical history, demographics, sports participation, and pain severity rated (0-10) during a 45-second anterior knee pain provocation test, consisting of an isometric single leg squat. Pressure pain thresholds were assessed bilaterally at the quadriceps, tibialis anterior muscle, and the patella tendon before and after a three-minute wall squat. RESULTS Forty-nine adolescents (27 Osgood-Schlatter, 22 controls) were included. There were no differences in the exercise-induced hypoalgesia effect between Osgood-Schlatter and controls. Overall, an exercise-induced hypoalgesia effect was detected at the tendon only in both groups with a 48 kPa (95 % confidence interval 14 to 82) increase in pressure pain thresholds from before to after exercise. Controls had higher pressure pain thresholds at the patellar tendon (mean difference 184 kPa 95 % confidence interval 55 to 313), tibialis anterior (mean difference 139 kPa 95 % confidence interval 24 to 254), and rectus femoris (mean difference 149 kPa 95 % confidence interval 33 to 265). Higher anterior knee pain provocation severity was associated with lower exercise-induced hypoalgesia at the tendon (Pearson correlation = 0.48; p = 0.011) in participants with Osgood-Schlatter. CONCLUSIONS Adolescents with Osgood-Schlatter display increased pain sensitivity locally, proximally, and distally but similar endogenous pain modulation compared to healthy controls. Greater Osgood-Schlatter severity appears to be associated with less efficient pain inhibition during the exercise-induced hypoalgesia paradigm.
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Affiliation(s)
- Kristian Damgaard Lyng
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; Center for General Practice at Aalborg University, Denmark. https://twitter.com/kristianlyng_
| | - Line Bay Sørensen
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark. https://twitter.com/LineBaySrensen1
| | | | - Michael Skovdal Rathleff
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; Center for General Practice at Aalborg University, Denmark; Department of Occupational Therapy and Physiotherapy, Aalborg University Hospital, Denmark. https://twitter.com/MichaelRathleff
| | - Sinead Holden
- Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; UCD Clinical Research Centre, School of Medicine, University College Dublin, Ireland.
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Eckenrode BJ, Kietrys DM, Brown A, Parrott JS, Noehren B. Signs of Nervous System Sensitization in Female Runners with Chronic Patellofemoral Pain. Int J Sports Phys Ther 2023; 18:132-144. [PMID: 36793566 PMCID: PMC9897008 DOI: 10.26603/001c.57603] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/10/2022] [Indexed: 02/04/2023] Open
Abstract
Background Patellofemoral pain (PFP) is a common overuse injury among runners, affecting females at a higher rate than males. PFP can often become chronic, with evidence suggesting it may be linked to both peripheral and central sensitization of the nervous system. Sensitization of the nervous system can be identified through quantitative sensory testing (QST). Hypothesis/Purpose The primary objective of this pilot study was to quantify and compare pain sensitivity as identified through QST measures, in active female runners with and without PFP. Study Design Cohort Study. Methods Twenty healthy female runners and 17 female runners with chronic PFP symptoms were enrolled. Subjects completed the Knee injury and Osteoarthritis Outcome Score for Patellofemoral Pain (KOOS-PF), University of Wisconsin Running Injury and Recovery Index (UWRI), and the Brief Pain Inventory (BPI). QST consisted of pressure pain threshold testing to three local and three distant sites to the knee, heat temporal summation, heat pain threshold, and conditioned pain modulation. Data was analyzed utilizing independent t-tests for comparison of between-group data, effect sizes for QST measures (Pearson's r), and Pearson's correlation coefficient between pressure pain threshold values at the knee and functional testing. Results The PFP group exhibited significantly lower scores on the KOOS-PF (p<0.001), BPI Pain Severity and Interference Scores (p<0.001), and UWRI (p<0.001). Primary hyperalgesia, identified through decreased pressure pain threshold at the knee, was detected in the PFP group at the central patella (p<0.001), lateral patellar retinaculum (p=0.003), and patellar tendon (p=0.006). Secondary hyperalgesia, a sign of central sensitization, was observed via differences in pressure pain threshold testing for the PFP group at the uninvolved knee (p=0.012 to p=0.042), involved extremity remote sites (p=0.001 to p=0.006), and uninvolved extremity remote sites (p=0.013 to p=0.021). Conclusion Compared to healthy controls, female runners with chronic PFP symptoms exhibit signs of both peripheral sensitization. Despite actively participating in running, nervous system sensitization may contribute to continued pain in these individuals. For female runners with chronic PFP, physical therapy management may need to include interventions which address signs of central and peripheral sensitization. Level of Evidence Level 3.
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Affiliation(s)
- Brian J Eckenrode
- Department of Physical Therapy Arcadia University
- Department of Rehabilitation and Movement Sciences Rutgers School of Health Professions
| | - David M Kietrys
- Department of Rehabilitation and Movement Sciences Rutgers School of Health Professions
| | - Allison Brown
- Department of Rehabilitation and Movement Sciences Rutgers School of Health Professions
| | - J Scott Parrott
- Department of Interdisciplinary Studies Rutgers School of Health Professions
| | - Brian Noehren
- Department of Physical Therapy University of Kentucky
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Plaza-Manzano G, Fernández-de-Las-Peñas C, Cleland JA, Arias-Buría JL, Jayaseelan DJ, Navarro-Santana MJ. A Closer Look at Localized and Distant Pressure Pain Hypersensitivity in People With Lower Extremity Overuse Soft-Tissue Painful Conditions: A Systematic Review and Meta-Analysis. Phys Ther 2022; 102:pzac119. [PMID: 36124704 DOI: 10.1093/ptj/pzac119] [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] [Received: 12/29/2021] [Revised: 04/25/2022] [Accepted: 07/07/2022] [Indexed: 11/14/2022]
Abstract
OBJECTIVE The nociceptive pain processing of soft-tissue overuse conditions is under debate because no consensus currently exists. The purpose of this meta-analysis was to compare pressure pain thresholds (PPTs) in symptomatic and distant pain-free areas in 2 groups: participants with symptomatic lower extremity overuse soft-tissue conditions and controls who were pain free. METHODS Five databases were searched from inception to December 1, 2021, for case-control studies comparing PPTs between individuals presenting with symptomatic lower extremity tendinopathy/overuse injury and controls who were pain free. Data extraction included population, diagnosis, sample size, outcome, type of algometer, and results. The methodological quality (Newcastle-Ottawa Quality Assessment Scale) and evidence level (Grading of Recommendations Assessment, Development, and Evaluation) were assessed. Meta-analyses of symptomatic, segmental related, and distant pain-free areas were compared. RESULTS After screening 730 titles and abstracts, a total of 19 studies evaluating lower extremity overuse conditions (Achilles or patellar tendinopathy, greater trochanteric pain syndrome, plantar fasciitis, and iliotibial band syndrome) were included. The methodological quality ranged from fair (32%) to good (68%). Participants with lower extremity overuse injury had lower PPTs in both the painful and nonpainful areas, mirrored test-site, compared with controls (affected side: mean difference [MD] = -262.92 kPa, 95% CI = 323.78 to -202.05 kPa; nonaffected side: MD = -216.47 kPa, 95% CI = -304.99 to -127.95 kPa). Furthermore, people with plantar fasciitis showed reduced PPTs in the affected and nonaffected sides at segmental-related (MD = -176.39 kPa, 95% CI = -306.11 to -46.68 kPa) and distant pain-free (MD = -97.27 kPa, 95% CI = 133.21 to -61.33 kPa) areas compared with controls. CONCLUSION Low- to moderate-quality evidence suggests a reduction of PPTs at the symptomatic area and a contralateral/mirror side in lower extremity tendinopathies and overuse conditions compared with pain-free controls, particularly in plantar fasciitis and greater trochanteric pain syndrome. Participants with plantar fasciitis showed a reduction of PPTs on the affected and non-affected sides at a segmental-related area (very low-quality evidence) and at a remote asymptomatic area (moderate-quality evidence). IMPACT Some overuse peripheral pain conditions may be more associated with pressure pain sensitivity than others. Accordingly, examination and identification of conditions more peripherally, centrally, or mixed mediated could potentially lead to more specific and different treatment strategies.
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Affiliation(s)
- Gustavo Plaza-Manzano
- Radiology, Rehabilitation and Physiotherapy Department, Universidad Complutense de Madrid, Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid, Spain
| | - César Fernández-de-Las-Peñas
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Universidad Rey Juan Carlos (URJC), Alcorcón, Madrid, Spain
- Cátedra Institucionalen Docencia, Clínica e Investigaciónen Fisioterapia: Terapia Manual, Punción Seca y Ejercicio Terapéutico, Universidad Rey Juan Carlos, Madrid, Spain
| | - Joshua A Cleland
- Doctor of Physical Therapy Program, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - José L Arias-Buría
- Radiology, Rehabilitation and Physiotherapy Department, Universidad Complutense de Madrid, Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid, Spain
| | - Dhinu J Jayaseelan
- Department of Health, Human Function and Rehabilitation Sciences, The George Washington University, Washington, DC, USA
| | - Marcos J Navarro-Santana
- Faculty of Health, Universidad Católica de Ávila (UCAV), Calle Canteros s/n, Ávila, Spain
- VALTRADOFI Research Group, Department of Physiotherapy, Faculty of Health, Universidad Camilo José Cela, Villanueva de la Cañada, Spain
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Tendinopathies and Pain Sensitisation: A Meta-Analysis with Meta-Regression. Biomedicines 2022; 10:biomedicines10071749. [PMID: 35885054 PMCID: PMC9313266 DOI: 10.3390/biomedicines10071749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/11/2022] [Accepted: 07/18/2022] [Indexed: 12/02/2022] Open
Abstract
The presence of pain sensitisation has been documented and reported as being a possible cause of treatment failure and pain chronicity in several musculoskeletal conditions, such as tendinopathies. The aim of the present study is to analyse existing evidence on pain sensitisation in tendinopathies comparing the local and distant pain thresholds of healthy and affected subjects with distinct analysis for different tendinopathies. PubMed, Cochrane Central Register, Scopus, and Web Of Science were systematically searched after registration on PROSPERO (CRD42020164124). Level I to level IV studies evaluating the presence of pain sensitisation in patients with symptomatic tendinopathies, documented through a validated method, were included. A meta-analysis was performed to compare local, contralateral, and distant pain thresholds between patients and healthy controls with sub-analyses for different tendinopathies. Meta-regressions were conducted to evaluate the influence of age, activity level, and duration of symptoms on results. Thirty-four studies out of 2868 were included. The overall meta-analysis of local pressure pain thresholds (PPT) documented an increased sensitivity in affected subjects (p < 0.001). The analyses on contralateral PPTs (p < 0.001) and distant PPTs (p = 0.009) documented increased sensitivity in the affected group. The results of the sub-analyses on different tendinopathies were conflicting, except for those on lateral epicondylalgia. Patients’ activity level (p = 0.02) and age (p = 0.05) significantly influenced local PPT results. Tendinopathies are characterized by pain sensitisation, but, while features of both central and peripheral sensitisation can be constantly detected in lateral epicondylalgia, results on other tendinopathies were more conflicting. Patients’ characteristics are possible confounders that should be taken into account when addressing pain sensitisation.
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ICON 2020-International Scientific Tendinopathy Symposium Consensus: A Scoping Review of Psychological and Psychosocial Constructs and Outcome Measures Reported in Tendinopathy Clinical Trials. J Orthop Sports Phys Ther 2022; 52:375-388. [PMID: 35647878 DOI: 10.2519/jospt.2022.11005] [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] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To identify and describe the psychological and psychosocial constructs and outcome measures used in tendinopathy research. DESIGN Scoping review. LITERATURE SEARCH We searched the PubMed, EMBASE, Scopus, Web of Science, PEDro, CINAHL, and APA PsychNet databases on July 10, 2021, for all published studies of tendinopathy populations measuring psychological and psychosocial factors. STUDY SELECTION Studies using a clinical diagnosis of tendinopathy or synonyms (eg, jumper's knee or subacromial impingement) with or without imaging confirmation. DATA SYNTHESIS We described the volume, nature, distribution, and characteristics of psychological and psychosocial outcomes reported in the tendinopathy field. RESULTS Twenty-nine constructs were identified, including 16 psychological and 13 psychosocial constructs. The most frequently-reported constructs were work-related outcomes (32%), quality of life (31%), depression (30%), anxiety (18%), and fear (14%). Outcome measures consisted of validated and nonvalidated questionnaires and 1-item custom questions (including demographics). The number of different outcome measures used to assess an individual construct ranged between 1 (emotional distress) and 11 (quality of life) per construct. CONCLUSION There was a large variability in constructs and outcome measures reported in tendinopathy research, which limits conclusions about the relationship between psychological and psychosocial constructs, outcome measures, and tendinopathies. Given the wide range of psychological and psychosocial constructs reported, there is an urgent need to develop a core outcome set in tendinopathy. J Orthop Sports Phys Ther 2022;52(6):375-388. doi:10.2519/jospt.2022.11005.
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Schuttert I, Timmerman H, Petersen KK, McPhee ME, Arendt-Nielsen L, Reneman MF, Wolff AP. The Definition, Assessment, and Prevalence of (Human Assumed) Central Sensitisation in Patients with Chronic Low Back Pain: A Systematic Review. J Clin Med 2021; 10:5931. [PMID: 34945226 PMCID: PMC8703986 DOI: 10.3390/jcm10245931] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/29/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Central sensitisation is assumed to be one of the underlying mechanisms for chronic low back pain. Because central sensitisation is not directly assessable in humans, the term 'human assumed central sensitisation' (HACS) is suggested. The objectives were to investigate what definitions for HACS have been used, to evaluate the methods to assess HACS, to assess the validity of those methods, and to estimate the prevalence of HACS. Database search resulted in 34 included studies. Forty different definition references were used to define HACS. This review uncovered twenty quantitative methods to assess HACS, including four questionnaires and sixteen quantitative sensory testing measures. The prevalence of HACS in patients with chronic low back pain was estimated in three studies. The current systematic review highlights that multiple definitions, assessment methods, and prevalence estimates are stated in the literature regarding HACS in patients with chronic low back pain. Most of the assessment methods of HACS are not validated but have been tested for reliability and repeatability. Given the lack of a gold standard to assess HACS, an initial grading system is proposed to standardize clinical and research assessments of HACS in patients with a chronic low back.
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Affiliation(s)
- Ingrid Schuttert
- Pain Center, Department of Anaesthesiology, University Medical Center Groningen, University of Groningen, 9750 RA Groningen, The Netherlands; (I.S.); (H.T.)
| | - Hans Timmerman
- Pain Center, Department of Anaesthesiology, University Medical Center Groningen, University of Groningen, 9750 RA Groningen, The Netherlands; (I.S.); (H.T.)
| | - Kristian K. Petersen
- Center for Neuroplasticity and Pain, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220 Aalborg, Denmark; (K.K.P.); (M.E.M.); (L.A.-N.)
| | - Megan E. McPhee
- Center for Neuroplasticity and Pain, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220 Aalborg, Denmark; (K.K.P.); (M.E.M.); (L.A.-N.)
| | - Lars Arendt-Nielsen
- Center for Neuroplasticity and Pain, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220 Aalborg, Denmark; (K.K.P.); (M.E.M.); (L.A.-N.)
- Department of Medical Gastroenterology (Mech-Sense), Aalborg University Hospital, DK-9220 Aalborg, Denmark
| | - Michiel F. Reneman
- Department of Rehabilitation Medicine, University Medical Center Groningen, University of Groningen, 9750 RA Groningen, The Netherlands;
| | - André P. Wolff
- Pain Center, Department of Anaesthesiology, University Medical Center Groningen, University of Groningen, 9750 RA Groningen, The Netherlands; (I.S.); (H.T.)
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Fotio Y, Jung KM, Palese F, Obenaus A, Tagne AM, Lin L, Rashid TI, Pacheco R, Jullienne A, Ramirez J, Mor M, Spadoni G, Jang C, Hohmann AG, Piomelli D. NAAA-regulated lipid signaling governs the transition from acute to chronic pain. SCIENCE ADVANCES 2021; 7:eabi8834. [PMID: 34678057 PMCID: PMC8535814 DOI: 10.1126/sciadv.abi8834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Chronic pain affects 1.5 billion people worldwide but remains woefully undertreated. Understanding the molecular events leading to its emergence is necessary to discover disease-modifying therapies. Here we show that N-acylethanolamine acid amidase (NAAA) is a critical control point in the progression to pain chronicity, which can be effectively targeted by small-molecule therapeutics that inhibit this enzyme. NAAA catalyzes the deactivating hydrolysis of palmitoylethanolamide, a lipid-derived agonist of the transcriptional regulator of cellular metabolism, peroxisome proliferator-activated receptor-α (PPAR-α). Our results show that disabling NAAA in spinal cord during a 72-h time window following peripheral tissue injury halts chronic pain development in male and female mice by triggering a PPAR-α-dependent reprogramming of local core metabolism from aerobic glycolysis, which is transiently enhanced after end-organ damage, to mitochondrial respiration. The results identify NAAA as a crucial control node in the transition to chronic pain and a molecular target for disease-modifying medicines.
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Affiliation(s)
- Yannick Fotio
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Kwang-Mook Jung
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Francesca Palese
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Andre Obenaus
- Department of Pediatrics, University of California Irvine, Irvine, CA 92697, USA
| | - Alex Mabou Tagne
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Lin Lin
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Tarif Ibne Rashid
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Romario Pacheco
- Psychological and Brain Sciences, Program in Neuroscience, and Gill Center for Biomolecular Science, Indiana University, Bloomington, IN 47401, USA
| | - Amandine Jullienne
- Department of Pediatrics, University of California Irvine, Irvine, CA 92697, USA
| | - Jade Ramirez
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
| | - Marco Mor
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, 43124 Parma, Italy
| | - Gilberto Spadoni
- Dipartimento di Scienze Biomolecolari, Università di Urbino “Carlo Bo,” 61029 Urbino, Italy
| | - Cholsoon Jang
- Department of Biological Chemistry, University of California Irvine, Irvine, CA 92697, USA
| | - Andrea G. Hohmann
- Psychological and Brain Sciences, Program in Neuroscience, and Gill Center for Biomolecular Science, Indiana University, Bloomington, IN 47401, USA
| | - Daniele Piomelli
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, CA 92697, USA
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12
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Plinsinga ML, Meeus M, Brink M, Heugen N, van Wilgen P. Evidence of Widespread Mechanical Hyperalgesia but Not Exercise-Induced Analgesia in Athletes With Mild Patellar Tendinopathy Compared With Pain-Free Matched Controls: A Blinded Exploratory Study. Am J Phys Med Rehabil 2021; 100:946-951. [PMID: 33350645 DOI: 10.1097/phm.0000000000001673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The aim of the study was to assess centrally induced pain processing with pressure pain thresholds bilaterally and remotely in active volleyball and basketball athletes with mild patellar tendinopathy compared with asymptomatic control athletes. Secondary objective was to explore the role of exercise-induced analgesia during a training session in athletes with patellar tendinopathy. DESIGN In this exploratory study, pressure pain thresholds of 21 patellar tendinopathy athletes and 16 age- and sex-matched asymptomatic team members were measured by a blinded assessor bilaterally on the patellar tendon and unilaterally on the elbow extensor tendon with a pressure algometer before, during, and after a regular training session. RESULTS Patellar tendinopathy athletes had a significantly higher average body mass index compared with asymptomatic athletes (mean difference 1.75 kg/m2; 95% confidence interval = 0.35-3.15, P = 0.02). At baseline, athletes with patellar tendinopathy showed lowered pressure pain thresholds in the affected knee (P = 0.001), unaffected knee (P < 0.001), and elbow (P = 0.01) compared with controls. No clear patterns were identified to explain between-group differences in pressure pain thresholds before, during, and after exercise. CONCLUSIONS This exploratory study found primary and secondary mechanical hyperalgesia in athletes with patellar tendinopathy compared with asymptomatic athletes. Further research is required on the effects of an acute exercise bout on pain thresholds in this population.
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Affiliation(s)
- Melanie Louise Plinsinga
- From The University of Queensland, School of Health and Rehabilitation Sciences: Physiotherapy: Sports Injury Rehabilitation and Prevention for Health, St. Lucia, Queensland, Australia (MLP); Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium (MM); Pain in Motion International Research Group, Brussels, Belgium (MM, PvW); Movant Research Group, Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium (MM); Centre for Human Movement Sciences, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands (MB, NH); Transcare Transdisciplinary Pain Management Centre, Groningen, the Netherlands (PvW); and Department of Physiotherapy and Rehabilitation Sciences, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium (PvW)
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13
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Mertens MG, Meeus M, Verborgt O, Vermeulen EHM, Schuitemaker R, Hekman KMC, van der Burg DH, Struyf F. An overview of effective and potential new conservative interventions in patients with frozen shoulder. Rheumatol Int 2021; 42:925-936. [PMID: 34487209 DOI: 10.1007/s00296-021-04979-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/18/2021] [Indexed: 12/11/2022]
Abstract
Frozen shoulder (FS) is a pathology that is difficult to understand and difficult to manage. Over the last ten years, contradictory and new evidence is provided regarding the recovery and its natural course. This narrative review provides new information about the diagnosis and conservative treatment of patients with FS and ongoing research hypotheses that might provide new insights in the pathology and treatment options. FS has a characteristic course. People with Diabetes Mellitus and thyroid disorders have a higher risk of developing a FS. The diagnosis FS is based on pattern recognition and physical examination. Additionally, 'rule-in' and 'rule-out' criteria can be used to increase the likelihood of the frozen shoulder diagnosis. Recommended and most common physical therapy interventions are mobilization techniques and exercises, in which tissue irritability can guide its intensity. In addition, physical therapy is often complementary with patient education and pharmacotherapy. The latest evidence-based practice related to FS is proprioceptive neuromuscular facilitation and mirror therapy. In addition, interventions like pain neuroscience education, high-intensity interval training and lifestyle changes are still hypothetical. Finally, better insight in the involvement of biochemical processes, function of myofibroblasts and matrix metalloproteinases can provide better understanding in the pathophysiology and will be addressed in current review.
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Affiliation(s)
- Michel Gcam Mertens
- Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Wilrijk, Belgium.,Pain in Motion International Research Group
| | - Mira Meeus
- Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Wilrijk, Belgium.,Pain in Motion International Research Group.,Department of Rehabilitation Sciences and Physiotherapy, Ghent University, Ghent, Belgium
| | - Olivier Verborgt
- Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Wilrijk, Belgium.,Department of Orthopedic Surgery and Traumatology, AZ Monica, Antwerp, Belgium
| | - Eric H M Vermeulen
- Department of Physical Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - Ruud Schuitemaker
- Schuitemaker en Van Schaik Fysiotherapie en Manuele Therapie, Amsterdam, The Netherlands
| | - Karin M C Hekman
- Medisch Centrum Jan Van Goyen, Amsterdam, The Netherlands.,Schoudercentrum IBC Amstelland, Amstelveen, The Netherlands
| | - Donald H van der Burg
- Fysiotherapie Oost Nederland (FYON), Enschede, The Netherlands.,Saxion Hogeschool, Enschede, The Netherlands
| | - Filip Struyf
- Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Wilrijk, Belgium.
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14
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Slagers AJ, van Veen E, Zwerver J, Geertzen JHB, Reininga IHF, van den Akker-Scheek I. Psychological factors during rehabilitation of patients with Achilles or patellar tendinopathy: a cross-sectional study. Phys Ther Sport 2021; 50:145-152. [PMID: 34015607 DOI: 10.1016/j.ptsp.2021.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/22/2021] [Accepted: 04/25/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE to examine psychological factors during rehabilitation of patients with Achilles or patellar tendinopathy as well as the association between psychological factors and tendinopathy severity, sport participation, and satisfaction with activity level and tendon function. DESIGN cross-sectional study. SETTING online survey platform. PARTICIPANTS 119 patients (mean age: 44 years (SD 14)) diagnosed with Achilles or patellar tendinopathy. MAIN OUTCOME MEASURES A range of patient-reported psychological and outcome measures were recorded. Multivariate regression analyses were performed to establish the association between each psychological factor and outcome measures, adjusted for relevant confounders. RESULTS Psychological readiness and confidence to return to sports (I-PRRS) and pain catastrophizing (PCS) were significantly associated with tendinopathy severity (modified VISA), sport participation(OSTRC-O), and satisfaction. Kinesiophobia (TSK) and the importance to patients of returning to pre-injury activity level were significantly associated with sports participation and satisfaction. CONCLUSION The current study provides evidence of impairments in psychological factors during rehabilitation of patients with Achilles and patellar tendinopathy. Most investigated psychological factors were associated with tendinopathy severity, function, participation, and satisfaction. Physical therapists should recognize patients with lack of psychological readiness to return to sports and also patients with kinesiophobia or catastrophizing thoughts when experiencing pain.
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Affiliation(s)
- Anton J Slagers
- University of Groningen, University Medical Center Groningen, Center for Rehabilitation, Department of Rehabilitation Medicine, Groningen, the Netherlands.
| | - Esther van Veen
- University of Groningen, University Medical Center Groningen, Department of Orthopaedics, Groningen, the Netherlands.
| | - Johannes Zwerver
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, the Netherlands; Gelderse Vallei Hospital, Sports Valley, Department of Sports Medicine, Ede, the Netherlands.
| | - Jan H B Geertzen
- University of Groningen, University Medical Center Groningen, Center for Rehabilitation, Department of Rehabilitation Medicine, Groningen, the Netherlands.
| | - Inge H F Reininga
- University of Groningen, University Medical Center Groningen, Department of Trauma Surgery, Groningen, the Netherlands.
| | - Inge van den Akker-Scheek
- University of Groningen, University Medical Center Groningen, Department of Orthopaedics, Groningen, the Netherlands.
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15
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Miki T, Nishigami T, Takebayashi T, Yamauchi T. Association between central sensitivity syndrome and psychological factors in people with presurgical low back pain: A cross-sectional study. J Orthop Sci 2021; 26:337-342. [PMID: 32331990 DOI: 10.1016/j.jos.2020.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/05/2020] [Accepted: 03/16/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Low back pain (LBP) is a major problem; it causes significant burden, incurs considerable economic and human costs, and adversely affects the quality of life (QoL). Central sensitivity syndrome (CSS) is known as a group of overlapping conditions that share a common pathophysiological mechanism of central sensitization. Previous studies have shown that CSS is present in several disorders. However, it has been studied for people with presurgical LBP. The purpose of the study was to investigate the proportion of patients with CSS for presurgical LBP and to analyse the association of CSS with clinical symptoms and psychological factors. METHODS Data of demographics, the central sensitization inventory (CSI), psychological measures, clinical symptoms of 238 patients with presurgical LBP were evaluated. The patients were divided into two groups depending on the CSI scores (≥40 and < 40). The two groups were compared, and the correlation between the CSI scores and other outcomes was analysed. Furthermore, multiple regression analysis was performed to identify factors contributing to the CSI scores. RESULTS 13.0% of participants were CSS. All outcomes were significantly different between the groups and significant associations were found between the CSI scores and all other outcomes. In addition, Pain Catastrophizing Scale (PCS) was most significant associated scale for the CSI scores. CONCLUSION We found that certain patients had CSS with presurgical LBP. The CSI scores were significantly associated with the majority of the factors. The PCS was the factor with the most influence on the CSI scores.
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Affiliation(s)
- Takahiro Miki
- Faculty of Health Sciences, Hokkaido University, Hokkaido, Japan; Department of Rehabilitation, Sapporo Maruyama Orthopedic Hospital, Hokkaido, Japan
| | - Tomohiko Nishigami
- Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Hiroshima, Japan
| | - Tsuneo Takebayashi
- Department of Orthopedic, Sapporo Maruyama Orthopedic Hospital, Hokkaido, Japan
| | - Taro Yamauchi
- Faculty of Health Sciences, Hokkaido University, Hokkaido, Japan.
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16
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Tanaka K, Nishigami T, Mibu A, Imai R, Manfuku M, Tanabe A. Combination of Pain Location and Pain Duration is Associated with Central Sensitization-Related Symptoms in Patients with Musculoskeletal Disorders: A Cross-Sectional Study. Pain Pract 2021; 21:646-652. [PMID: 33710772 DOI: 10.1111/papr.13005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 02/02/2021] [Accepted: 03/02/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Increased evidence indicates that pain location affects central sensitization (CS)-related symptoms. In addition, pain location and pain duration may be intricately related to CS-related symptoms. However, these factors have been investigated separately. This study aimed to investigate the association between CS-related symptoms and pain location and/or pain duration in patients with musculoskeletal disorders. METHODS Six hundred thirty-five participants with musculoskeletal disorders were included in this cross-sectional study. All participants were assessed for pain location, pain duration, central sensitization inventory (CSI), EuroQol-5 dimension, and brief pain inventory. The participants were categorized into 3 groups based on pain location (spinal, limb, and both spinal and limb pain) and into 2 groups based on pain duration (acute and chronic pain). RESULTS The interaction between pain location and pain duration were not significant on CSI score (P > 0.05). The odds ratio for higher CSI score (≥ 40) in patients with both spinal and limb pain vs. those with spinal or limb pain was 2.64 (P < 0.01) and that in patients with chronic pain vs. those with acute pain was 1.31 (P = 0.52). In addition, the prevalence of higher CSI scores in the combination of chronic and "both spinal and limb" pain was high (23.1%, adjusted residual = 4.48). CONCLUSIONS Pain location independently influenced CSI scores, and the combination of both spinal and limb pain and chronic pain indicated high CSI scores. The combination of pain location and pain duration is an important clue that points to CS-related symptoms.
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Affiliation(s)
| | - Tomohiko Nishigami
- Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Mihara, Hiroshima, Japan
| | - Akira Mibu
- Department of Physical Therapy, Konan Women's University, Kobe, Japan
| | - Ryota Imai
- Department of Physical Therapy, Osaka Kawasaki Rehabilitation University, Osaka, Japan
| | | | - Akihito Tanabe
- Department of Rehabilitation, Tanabe Orthopaedics, Osaka, Japan
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17
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Sensory Processing in People With and Without Tendinopathy: A Systematic Review With Meta-analysis of Local, Regional, and Remote Sites in Upper- and Lower-Limb Conditions. J Orthop Sports Phys Ther 2021; 51:12-26. [PMID: 33383996 DOI: 10.2519/jospt.2021.9417] [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] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To synthesize results of somatosensory processing tests in people with upper- and lower-limb tendinopathy, compared to controls. DESIGN Systematic review with meta-analysis. LITERATURE SEARCH Four electronic databases (MEDLINE, CINAHL Plus, SPORTDiscus, and Embase) were searched. STUDY SELECTION CRITERIA Included studies measured a domain of sensory processing and compared a tendinopathy group to a healthy control group. DATA SYNTHESIS Meta-analysis was conducted for outcomes with homogeneous data from at least 2 studies. Upper- and lower-limb conditions were compared and outcomes were examined by measurement site (local, regional, or remote to location of pain). RESULTS Of the 30 studies included, 18 investigated lateral elbow tendinopathy. The most commonly assessed outcome measures were pressure pain threshold (PPT) and thermal pain threshold. There was moderate evidence for local and regional reduction of PPT in upper-limb tendinopathies, but not at remote sites. In lower-limb tendinopathies, there was conflicting evidence regarding reduced PPT at local sites and limited evidence of normal PPT at remote sites. There was moderate evidence of sensitization of thermal pain threshold at local sites in upper-limb tendinopathies and limited evidence of no difference in thermal pain threshold in lower-limb tendinopathies. Findings across other domains were variable. CONCLUSION Sensory processing was different between upper-limb tendinopathy and lower-limb tendinopathy. Upper-limb tendinopathies showed signs consistent with primary and secondary hyperalgesia, but lower-limb tendinopathies did not. There was mixed evidence for primary hyperalgesia and limited evidence against secondary hyperalgesia. J Orthop Sports Phys Ther 2021;51(1):12-26. doi:10.2519/jospt.2021.9417.
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18
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Kim MS, Koh IJ, Kim CK, Choi KY, Kim CY, In Y. Cross-cultural adaptation and validation of the Korean version of the Central Sensitization Inventory in patients undergoing total knee arthroplasty for knee osteoarthritis. PLoS One 2020; 15:e0242912. [PMID: 33259513 PMCID: PMC7707521 DOI: 10.1371/journal.pone.0242912] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 11/11/2020] [Indexed: 11/18/2022] Open
Abstract
The purpose of this study was to establish a Korean version of the Central Sensitization Inventory (CSI-K) for Korean-speaking patients facing total knee arthroplasty (TKA) for knee osteoarthritis (OA) and to investigate the psychometric characteristics of the CSI-K. We recruited a total of 269 patients with knee OA who were scheduled to undergo TKA for the study. CSI-K and pain-related outcomes, including the pain visual analog scale (VAS) and the Western Ontario and McMaster Universities OA Index (WOMAC) pain sub-scores, were measured. Since central sensitization (CS) is closely related to the quality of life (QOL) and limited functionality as well as pain, the patient's function was measured using the WOMAC function sub-scores, and QOL was measured using the EuroQol five-dimension test (EQ-5D). Reliability and validity were evaluated. Exploratory factor analysis (EFA) was conducted to begin the data reduction to validate the existing questionnaire translation. The internal consistency was excellent, with a Cronbach's alpha of 0.941. The test-retest reliability was acceptable-to-excellent with an ICC of 0.888. As expected, the CSI scores correlated strongly with the WOMAC pain scores (r = 0.524, p < 0.001) and moderately with the pain VAS (r = 0.496, p < 0.001), the WOMAC function (r = 0.408, p < 0.001), and the EQ-5D scores (r = 0.437, p < 0.001). EFA resulted in a six-factor model. The findings demonstrate that the CSI was successfully trans-culturally adapted into a simplified Korean version (CSI-K) that was reliable and valid for Korean-speaking patients who awaiting TKA for knee OA.
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Affiliation(s)
- Man Soo Kim
- Department of Orthopaedic Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - In Jun Koh
- Department of Orthopaedic Surgery, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chul Kyu Kim
- Department of Orthopaedic Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Keun Young Choi
- Department of Orthopaedic Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang Yeon Kim
- Department of Orthopaedic Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong In
- Department of Orthopaedic Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- * E-mail:
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19
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Kondo Y, Miki T, Higuchi D, Takebayashi T. Effects of Central Sensitivity Syndrome and Psychological Factors on the Clinical Features of Patients with Cervical Degenerative Disease: A Cross-Sectional Study. Asian Spine J 2020; 15:464-471. [PMID: 33160299 PMCID: PMC8377207 DOI: 10.31616/asj.2020.0177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/04/2020] [Indexed: 11/23/2022] Open
Abstract
Study Design Single-center cross-sectional study. Purpose The present study aimed to clarify the effects of central sensitivity syndrome (CSS) and psychological factors on the clinical features in patients with cervical degenerative disease (CDD). Overview of Literature The presence of CSS and psychological factors can influence the clinical features of patients with musculoskeletal disorders including CDD. However, the precise effects of CSS are unclear. Methods Patients admitted for surgical treatment of CDD were recruited. The following patient-reported outcome measures were recorded on the day before the surgery: the Numerical Rating Scale (NRS) for neck pain intensity, Neck Disability Index (NDI), EuroQol 5-Dimensions (EQ-5D) survey, Central Sensitization Inventory (CSI), Pain Catastrophizing Scale, Tampa Scale for Kinesiophobia, and the Hospital Anxiety and Depression Scale were used. We performed three multiple regression analyses to investigate the effects of CSS and psychological factors on the clinical features. Results Multiple regression analysis revealed that CSI had a significant effect on NRS (β, 0.50; 95% confidence interval [CI], 0.29 to 0.71), NDI (β, 0.64; 95% CI, 0.45 to 0.82), and EQ-5D (β, −0.55; 95% CI, −0.75 to −0.35). Multiple regression analysis revealed that psychological factors did not exert a significant effect on the clinical features. Conclusions Our results demonstrated that CSI was able to identify the clinical features in CDD patients, suggesting that CSS does affect the clinical features of such patients.
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Affiliation(s)
- Yu Kondo
- Department of Rehabilitation, Sapporo Maruyama Orthopedic Hospital, Sapporo, Japan
| | - Takahiro Miki
- Department of Rehabilitation, Sapporo Maruyama Orthopedic Hospital, Sapporo, Japan
| | - Daisuke Higuchi
- Department of Physical Therapy, Takasaki University of Health and Welfare, Takasaki, Japan
| | - Tsuneo Takebayashi
- Department of Orthopaedic Surgery, Sapporo Maruyama Orthopedic Hospital, Sapporo, Japan
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The Effectiveness of Isometric Contractions Compared With Isotonic Contractions in Reducing Pain For In-Season Athletes With Patellar Tendinopathy. J Sport Rehabil 2020; 30:512-515. [PMID: 33049706 DOI: 10.1123/jsr.2019-0376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 07/28/2020] [Accepted: 08/01/2020] [Indexed: 11/18/2022]
Abstract
Clinical Scenario: Patellar tendinopathy is a common musculoskeletal disorder affecting the lower-extremities and a difficult condition to manage for athletes that are in season. To facilitate improvement in function and to decrease pain, initial treatment for patellar tendinopathy is typically conservative. Traditional interventions may include eccentric training, cryotherapy, patellar counterforce straps, oral anti-inflammatories, injectable agents, phonophoresis, iontophoresis, orthotics, therapeutic ultrasound, and extracorporeal shockwave. In addition, recent literature suggests that implementing isometric and isotonic contractions may be effective in reducing patellar tendon pain. Focused Clinical Question: How effective are isometric contractions compared with isotonic contractions in reducing pain for in-season athletes with patellar tendinopathy? Summary of Key Findings: Implementation of isometric and isotonic exercises statistically reduced pain levels in the short term of 4 weeks for in-season athletes; however, isometric contractions provided statistically greater pain relief immediately for up to 45 minutes postintervention compared with isotonic contractions. Clinical Bottom Line: Current evidence supports the use of isometric and isotonic contractions to reduce pain for in-season athletes with patellar tendinopathy. Based on the reviewed literature, clinicians should consider utilizing heavy loaded isometrics or progressive heavy loaded isotonic exercises, which showed reduction in pain levels immediately after intervention and at 4-week follow-up for both intervention groups. Isometric contractions appear to provide greater pain relief immediately after intervention. Strength of Recommendation: There is Grade B evidence from 2 level 2 randomized controlled trials and 1 level 3 randomized crossover study supporting the use of isometric and isotonic contractions to reduce patellar tendon pain for in-season athletes.
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Mkumbuzi NS, Mafu TS, September AV, Posthumus M, Collins M. Conditioned pain modulation is not altered in recreational athletes with Achilles tendinopathy. TRANSLATIONAL SPORTS MEDICINE 2020. [DOI: 10.1002/tsm2.201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nonhlanhla S. Mkumbuzi
- Division of Exercise Science and Sports Medicine Department of Human Biology University of Cape Town Cape Town South Africa
| | - Trevor S. Mafu
- Division of Exercise Science and Sports Medicine Department of Human Biology University of Cape Town Cape Town South Africa
| | - Alison V. September
- Division of Exercise Science and Sports Medicine Department of Human Biology University of Cape Town Cape Town South Africa
- International Federation of Sports Medicine (FIMS) Collaborative Centre of Sports Medicine University of Cape Town Cape Town South Africa
| | - Michael Posthumus
- Division of Exercise Science and Sports Medicine Department of Human Biology University of Cape Town Cape Town South Africa
- High Performance CentreSports Science Institute of South Africa Cape Town South Africa
- International Federation of Sports Medicine (FIMS) Collaborative Centre of Sports Medicine University of Cape Town Cape Town South Africa
| | - Malcolm Collins
- Division of Exercise Science and Sports Medicine Department of Human Biology University of Cape Town Cape Town South Africa
- International Federation of Sports Medicine (FIMS) Collaborative Centre of Sports Medicine University of Cape Town Cape Town South Africa
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22
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Effects of iliotibial band syndrome on pain sensitivity and gait kinematics in female runners: A preliminary study. Clin Biomech (Bristol, Avon) 2020; 76:105017. [PMID: 32388078 DOI: 10.1016/j.clinbiomech.2020.105017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 11/22/2019] [Accepted: 04/21/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Runners with iliotibial band syndrome display symptoms similar to chronic tendinopathy and distinct gait patterns compared to healthy controls. Although altered pain processing has been demonstrated in chronic tendinopathies, central pain processing and its relationship to motor control has not been measured in iliotibial band syndrome. The purpose of this study was to examine pain sensitivity, hip strength, and gait kinematics in runners with and without iliotibial band syndrome. METHODS Nine female runners with iliotibial band syndrome and eight healthy controls participated. Subjective pain was reported and pressure pain threshold measured at the bilateral foot, tibialis anterior, contralateral hand. Isometric hip strength was assessed. Three-dimensional joint angles were collected while running. Differences in pain and strength were determined using 1-way ANOVAs. Discrete hip and knee joint angles during stance phase were calculated and waveform analysis performed. FINDINGS Runners with iliotibial band syndrome exhibited bilaterally diminished pain at the foot (injured-limb: 1.54 (SD = 0.51); non-injured limb: 1.54 (SD = 0.55); control: 4.01 (SD = 2.30) kg, P < .001) and ipsilateral tibialis anterior (injured-limb: 2.33 (SD = 1.10); control: 6.13 (SD = 4.89) kg, P = .03). Hip strength was not different between groups. Runners with iliotibial band syndrome had greater hip adduction at touchdown, knee internal rotation during loading, and knee abduction and flexion at toe-off than controls. INTERPRETATION Runners with iliotibial band syndrome demonstrated expanded somatic pain sensitivity without hip strength differences, but concomitant with altered gait patterns. Bilateral pain symptoms and gait deviations exist in runners with iliotibial band syndrome even with unilateral symptoms, highlighting the importance of bilateral assessment.
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Ferrer-Peña R, Muñoz-García D, Calvo-Lobo C, Fernández-Carnero J. Pain Expansion and Severity Reflect Central Sensitization in Primary Care Patients with Greater Trochanteric Pain Syndrome. PAIN MEDICINE 2020; 20:961-970. [PMID: 30312451 DOI: 10.1093/pm/pny199] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The aims of this study were twofold: 1) to evaluate the differences in pain sensitivity of patients with greater trochanteric pain syndrome (GTPS) and 2) to examine the association between pain expansion, pain severity, and pain-related central sensitization somatosensory variables in patients with GTPS. STUDY DESIGN A cross-sectional study. SETTING Primary health care centers. SUBJECTS The sample consisted of 49 participants with a mean age of 48.28 ± 8.13 years and included eight males (16.3%) and 41 females (83.7%). METHODS Conditioned pain modulation (CPM), pain location, temporal summation, pressure pain detection threshold (PPDT), and pain intensity were recorded. Pain severity was determined with the Graded Chronic Pain Scale (GCPS). RESULTS Several participants (34.7%) showed a negative conditioned pain modulation and a statistically significant negative moderate correlation (P < 0.05; r = -0.316) between conditioned pain modulation and right view percentage of pain location. Temporal summation at the major trochanter showed a statistically significant low negative correlation (P < 0.05; r = -0.298). The GCPS exhibited a statistically significant moderately positive correlation (P < 0.01; r = 0.467) with the PPDT at the trochanter and a significant correlation with the postero-superior iliac spine (P < 0.01; r = 0.515) and epicondyle (P < 0.01; r = 0.566). CONCLUSIONS Patients with GTPS presented altered CPM, a relationship with more pain areas associated with negative CPM, and a positive association between pain severity and mechanical hyperalgesia at remote sites. Thus, physicians could apply these outcome measurements to assess primary care patients with GTPS and determine the central sensitization presence to prescribe adequate multimodal treatment approaches.
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Affiliation(s)
- Raúl Ferrer-Peña
- Physical Therapy Department, Universidad Autónoma de Madrid, Madrid, Spain.,Motion in Brains Research Group, Instituto de Neurociencias y Ciencias del Movimiento, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Salud Entrevías, Gerencia de Atención Primaria, Servicio Madrileño de Salud, Madrid, Spain.,Universidad Rey Juan Carlos, Escuela internacional de doctorado, Madrid, Spain
| | - Daniel Muñoz-García
- Physical Therapy Department, Universidad Autónoma de Madrid, Madrid, Spain.,Motion in Brains Research Group, Instituto de Neurociencias y Ciencias del Movimiento, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain
| | - César Calvo-Lobo
- Nursing and Physical Therapy Department, Institute of Biomedicine (IBIOMED), Universidad de León, Ponferrada, León, Spain
| | - Josué Fernández-Carnero
- Motion in Brains Research Group, Instituto de Neurociencias y Ciencias del Movimiento, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain.,Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain.,Hospital La Paz Institute for Health Research, IdiPAz, Madrid, Spain
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Cleland T, Jain NB, Chae J, Hansen KM, Hisel TZ, Gunzler DD, Whitehair VC, Kim CH, Wilson RD. The protocol for a multisite, double blind, randomized, placebo-controlled trial of axillary nerve stimulation for chronic shoulder pain. Trials 2020; 21:248. [PMID: 32143732 PMCID: PMC7059286 DOI: 10.1186/s13063-020-4174-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/17/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Shoulder impingement syndrome is one of the most common causes of shoulder pain, accounting for approximately 30% of all shoulder pain. Approximately 35% of patients with shoulder impingement syndrome are refractory to conservative treatment. For patients who fail conservative treatment, there is no established treatment to successfully treat their chronic pain. Prior randomized control trials have demonstrated efficacy for the use of a single lead intramuscular peripheral nerve stimulation of the axillary nerve at the motor points of the deltoid muscle for treatment of hemiplegic shoulder pain. This is the first controlled trial to utilize the same novel technology to treat shoulder impingement syndrome outside of the stroke population. METHODS This is a dual-site, placebo-controlled, double-blinded, randomized control trial. Participants will be randomized to two treatment groups. The intervention group will be treated with active peripheral nerve stimulation of the axillary nerve of the affected shoulder and the control group will be treated with sham peripheral nerve stimulation of the axillary nerve of the affected shoulder. Both groups will receive a standardized exercise therapy program directed by a licensed therapist. DISCUSSION This study protocol will allow the investigators to determine if this novel, non-pharmacologic treatment of shoulder pain can demonstrate the same benefit in musculoskeletal patients which has been previously demonstrated in the stroke population. TRIAL REGISTRATION Clinicaltrials.gov, NCT03752619. Registered on 26 November 2018.
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Affiliation(s)
- Travis Cleland
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
| | - Nitin B. Jain
- Vanderbilt University Medical Center, 3319 West End Ave, Nashville, TN 37203 USA
| | - John Chae
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
| | - Kristine M. Hansen
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
| | - Terri Z. Hisel
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
| | - Douglas D. Gunzler
- Center for Healthcare Research and Policy, MetroHealth System, 2500 MetroHealth Dr., Cleveland, OH 44109 USA
| | - Victoria C. Whitehair
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
| | - Chong H. Kim
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
| | - Richard D. Wilson
- MetroHealth Rehabilitation Institute, MetroHealth System, 4229 Pearl Rd, N5-27, Cleveland, OH 44109 USA
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Pollock N, Chakraverty R, Taylor I, Killer SC. An 8-year Analysis of Magnesium Status in Elite International Track & Field Athletes. J Am Coll Nutr 2019; 39:443-449. [DOI: 10.1080/07315724.2019.1691953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- N. Pollock
- British Athletics, National Performance Institute, Athletics Centre (HiPAC), Loughborough University, Loughborough, UK
- British Athletics Medical Team, Institute of Sport, Exercise and Health, London, UK
| | - R. Chakraverty
- British Athletics, National Performance Institute, Athletics Centre (HiPAC), Loughborough University, Loughborough, UK
- Medical Department, The Football Association, Burton, UK
| | - I. Taylor
- National Centre for Sport & Exercise Medicine, Loughborough University, Loughborough, UK
| | - S. C. Killer
- British Athletics, National Performance Institute, Athletics Centre (HiPAC), Loughborough University, Loughborough, UK
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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26
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San-Antolín M, Rodríguez-Sanz D, Becerro-de-Bengoa-Vallejo R, Losa-Iglesias ME, Casado-Hernández I, López-López D, Calvo-Lobo C. Central Sensitization and Catastrophism Symptoms Are Associated with Chronic Myofascial Pain in the Gastrocnemius of Athletes. PAIN MEDICINE 2019; 21:1616-1625. [DOI: 10.1093/pm/pnz296] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
Objective
To compare central sensitization symptoms, presence of central sensitivity syndrome (CSS), catastrophism, rumination, magnification, and helplessness symptoms between athletes with gastrocnemius myofascial pain and healthy athletes. Furthermore, to predict central sensitization symptoms based on sociodemographic and descriptive data, catastrophism features, and presence of gastrocnemius myofascial pain in athletes.
Design
Case–control study.
Setting
Outpatient clinic.
Subjects
Fifty matched paired athletes were recruited and divided into patients with chronic (more than three months) gastrocnemius myofascial pain (N = 25) and healthy subjects (N = 25).
Methods
Central sensitization symptoms and CSS presence (≥40 points) were determined by the Central Sensitization Questionnaire (CSQ). Catastrophism symptoms and rumination, magnification, and helplessness domains were measured by the Pain Catastrophizing Scale (PCS). Statistical significance was set at P < 0.01 for a 99% confidence interval.
Results
Statistically significant differences (P ≤ 0.001) with a large effect size (d = 1.05–1.19) were shown for higher CSQ scores and PCS total and domain scores in athletes with gastrocnemius myofascial pain vs healthy athletes. Nevertheless, CSS presence (CSQ ≥ 40 points) did not show statistically significant differences (P = 0.050) between groups. A linear regression model (R2 = 0.560, P < 0.01) predicted higher CSQ scores based on PCS total score (R2 = 0.390), female sex (R2 = 0.095), and myofascial pain presence (R2 = 0.075).
Conclusions
Greater symptoms of central sensitization, catastrophism, rumination, magnification, and helplessness were shown in athletes with gastrocnemius myofascial pain compared with healthy athletes. Nevertheless, there was not a statistically significant presence of CSS comparing both groups. Greater central sensitization symptoms were predicted by catastrophism symptoms, female sex, and presence of gastrocnemius myofascial pain in athletes.
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Affiliation(s)
- Marta San-Antolín
- Department of Psychology, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain
| | - David Rodríguez-Sanz
- Facultad de Enfermería, Fisioterapia y Podología, Universidad Complutense de Madrid, Madrid, Spain
| | | | | | | | - Daniel López-López
- Research, Health and Podiatry Unit, Department of Health Sciences, Faculty of Nursing and Podiatry, Universidade da Coruña, Ferrol, Spain
| | - César Calvo-Lobo
- Facultad de Enfermería, Fisioterapia y Podología, Universidad Complutense de Madrid, Madrid, Spain
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Tanaka K, Murata S, Nishigami T, Mibu A, Manfuku M, Shinohara Y, Tanabe A, Ono R. The central sensitization inventory predicts pain‐related disability for musculoskeletal disorders in the primary care setting. Eur J Pain 2019; 23:1640-1648. [DOI: 10.1002/ejp.1443] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/18/2019] [Accepted: 06/09/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Katsuyoshi Tanaka
- Department of Community Health Sciences Kobe University Graduate School of Health Sciences Kobe Japan
- Department of Rehabilitation Tanabe Orthopaedics Osaka Japan
| | - Shunsuke Murata
- Department of Community Health Sciences Kobe University Graduate School of Health Sciences Kobe Japan
- Japan Society for the Promotion of Science Chiyoda Japan
- Department of Preventive Medicine and Epidemiology National Cerebral and Cardiovascular Center Research Institute Osaka Japan
| | - Tomohiko Nishigami
- Department of Nursing and Physical Therapy Konan Women’s University Kobe Japan
| | - Akira Mibu
- Department of Nursing and Physical Therapy Konan Women’s University Kobe Japan
| | | | | | - Akihito Tanabe
- Department of Rehabilitation Tanabe Orthopaedics Osaka Japan
| | - Rei Ono
- Department of Community Health Sciences Kobe University Graduate School of Health Sciences Kobe Japan
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Potential Nervous System Sensitization in Patients With Persistent Lower Extremity Tendinopathies: 3 Case Reports. J Orthop Sports Phys Ther 2019; 49:272-279. [PMID: 30759356 DOI: 10.2519/jospt.2019.8600] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Tendinopathy is a condition often associated with pain and functional and sport performance limitations. While targeted exercise prescriptions are often effective, many patients with tendinopathy develop persistent symptoms. Emerging evidence suggests a possible link between nervous system sensitization and tendinopathy. If so, identifying and treating specific pain mechanisms may improve outcomes. CASE DESCRIPTION Three patients were seen in physical therapy for complaints of ongoing chronic tendon pain and self-reported disability, despite being treated previously and receiving evidence-informed care. Upon examination, each patient demonstrated signs consistent with possible dysfunction of central pain mechanisms. Joint mobilization, pain neuroscience education, and aerobic exercise were primary interventions in each case to decrease pain and improve function. OUTCOMES The 3 patients were treated for 5 sessions over the course of 8 weeks. Clinically significant improvement was noted in measures of pain, self-reported function, and pressure pain thresholds. At discharge, all patients were able to run without symptoms, and improvement was maintained at 1-year follow-up. DISCUSSION Tendinopathy, while often described as local pain and dysfunction, may be associated with dysfunction of the nervous system. Identifying and treating pain mechanisms in addition to relevant impairments may be an appropriate intervention approach for individuals with tendinopathy. LEVEL OF EVIDENCE Therapy, level 4. J Orthop Sports Phys Ther 2019;49(4):272-279. Epub 13 Feb 2019. doi:10.2519/jospt.2019.8600.
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Brund RBK, Rasmussen S, Kersting UG, Arendt-Nielsen L, Palsson TS. Prediction of running-induced Achilles tendinopathy with pain sensitivity - a 1-year prospective study. Scand J Pain 2019; 19:139-146. [PMID: 30407913 DOI: 10.1515/sjpain-2018-0084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Indexed: 02/01/2023]
Abstract
Background and aims Achilles tendinopathy is common among runners, but the etiology remains unclear. High mechanical pain sensitivity may be a predictor of increased risk of developing Achilles tendinopathy in this group. The purpose of this study was to investigate whether local pain sensitivity could predict the development of Achilles tendinopathy in recreational male runners. The overall hypothesis was that high pain sensitivity would be related to a higher risk of developing Achilles tendinopathy among recreational male runners. Methods Ninety-nine recreational male runners were recruited and followed prospectively for 1 year. At baseline and after 500 km of running the pressure pain threshold (PPT) was assessed at the infraspinatus and at the Achilles tendon (AT-PPT). Based on the AT-PPT at baseline, a median split was used to divide the runners into two groups. The high pain sensitivity groups was defined as runners displaying a pain pressure threshold below 441 kPa on the Achilles tendon, while the low pain sensitivity group was defined as runners displaying a pain pressure threshold above 441 kPa on the Achilles tendon, respectively. Subsequently, the cumulative risk difference between the two groups was assessed by using the pseudo-observation method. Results High pain sensitivity runners sustained 5%-point (95% CI: -0.18 to 0.08) more Achilles tendinopathy episodes during the first 1,500 km. No significant group differences in risk were found at 100, 250, 500, 1,000 and 1,500 km of running. Conclusions No significant association was found between mechanical pain sensitivity in the Achilles tendon and the risk of developing Achilles tendinopathy. However, the risk difference indicated a association between a high mechanical pain sensitivity and an increased risk of developing Achilles tendinopathy. It is plausible that changes in pain sensitivity were masked by unmeasured covariates, such as the differences in progression/regression of training volume and running speed between the two groups. This study was limited in size, which limited the possibility to account for covariates, such as differences in progression/regression of running speed between runners. With the limitations in mind, future studies should control the training volume, speed and running shoes in the design or account for it in the analysis. Implications Pain sensitivity of the Achilles tendon seems not to be related to an increased risk of developing Achilles pain in relation to running.
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Affiliation(s)
- René B K Brund
- Sport Sciences, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, DK-9220, Aalborg, Denmark
| | - Sten Rasmussen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.,Orthopaedic Surgery Research Unit, Science and Innovation Center, Aalborg University Hospital, Aalborg, Denmark
| | - Uwe G Kersting
- Sport Sciences, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark
| | - Lars Arendt-Nielsen
- SMI, Department of Health Science and Technology, School of Medicine, Aalborg University, Aalborg, Denmark
| | - Thorvaldur Skuli Palsson
- SMI, Department of Health Science and Technology, School of Medicine, Aalborg University, Aalborg, Denmark
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30
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Sprague AL, Smith AH, Knox P, Pohlig RT, Grävare Silbernagel K. Modifiable risk factors for patellar tendinopathy in athletes: a systematic review and meta-analysis. Br J Sports Med 2018; 52:1575-1585. [PMID: 30054341 PMCID: PMC6269217 DOI: 10.1136/bjsports-2017-099000] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2018] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To perform a systematic review and meta-analysis identifying (1) potential modifiable risk factors and (2) associated modifiable factors for patellar tendinopathy in athletes. DESIGN A systematic review and meta-analysis was conducted. Risk of bias was assessed using the Newcastle-Ottawa Scale and grouped based on study design. Meta-analytic statistics were performed for items reported by five or more studies. A strength of evidence rating is provided for items not appropriate for meta-analysis. DATA SOURCES PubMed, Web of Science, Scopus and Cinahl were searched on 14 November 2017. ELIGIBILITY CRITERIA Quantitative, original research reporting potential modifiable risk factors or associated factors, comparing athletes with patellar tendinopathy with a group without the injury. RESULTS 862 records were screened and 31 articles were included (6 prospective, 25 cross-sectional). There was a lack of strong evidence for any potential modifiable risk factor or associated factors. There was limited or conflicting evidence that decreased ankle dorsiflexion range of motion, decreased posterior thigh and quadriceps flexibility, greater volume of jump training, more volleyball sets played per week, greater countermovement jump (CMJ) height and greater activity volume are potential modifiable risk factors. Meta-analysis supported greater activity volume (Cohen's d=0.22, 95% CI 0.06 to 0.39, p=0.008), higher body weight (0.36, 0.17 to 0.55, p<0.001) and greater CMJ height (0.31, 0.07 to 0.56, p=0.01) as associated modifiable factors. CONCLUSIONS There is a lack of strong evidence for any potential modifiable risk factors or associated factors. Factors with lower levels of support may be of interest in designing prevention programmes but require further research in high-quality, prospective studies.
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Affiliation(s)
- Andrew L Sprague
- Department of Biomechanics and Movement Science, University of Delaware, Newark, Delaware, USA
| | - Angela H Smith
- Department of Physical Therapy, University of Delaware, Newark, Delaware, USA
| | - Patrick Knox
- Department of Physical Therapy, University of Delaware, Newark, Delaware, USA
| | - Ryan T Pohlig
- Biostatistic Core Facility, College of Health Sciences, University of Delaware, Newark, Delaware, USA
| | - Karin Grävare Silbernagel
- Department of Biomechanics and Movement Science, University of Delaware, Newark, Delaware, USA
- Department of Physical Therapy, University of Delaware, Newark, Delaware, USA
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31
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De Oliveira Silva D, Rathleff MS, Petersen K, Azevedo FMD, Barton CJ. Manifestations of Pain Sensitization Across Different Painful Knee Disorders: A Systematic Review Including Meta-analysis and Metaregression. PAIN MEDICINE 2018; 20:335-358. [DOI: 10.1093/pm/pny177] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Danilo De Oliveira Silva
- Laboratory of Biomechanics and Motor Control (LABCOM), Sao Paulo State University (UNESP), Presidente Prudente, Brazil
- La Trobe Sport and Exercise Medicine Research Centre (LASEM), School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Australia
| | - Michael Skovdal Rathleff
- SMI, Faculty of Medicine
- Research Unit for General Practice in Aalborg, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | | | - Fábio Mícolis de Azevedo
- Laboratory of Biomechanics and Motor Control (LABCOM), Sao Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Christian John Barton
- La Trobe Sport and Exercise Medicine Research Centre (LASEM), School of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, Australia
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Relationship between ultrasound detected tendon abnormalities, and sensory and clinical characteristics in people with chronic lateral epicondylalgia. PLoS One 2018; 13:e0205171. [PMID: 30356266 PMCID: PMC6200215 DOI: 10.1371/journal.pone.0205171] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 09/20/2018] [Indexed: 12/22/2022] Open
Abstract
Objective To investigate the relationship between tendon structural changes determined by static ultrasound images (US) and sensory changes using quantitative sensory testing (QST), and clinical measures in lateral epicondylalgia. Materials and methods Both elbows of 66 adult participants with a clinical diagnosis of lateral epicondylalgia were investigated. Using a standardised ultrasound image rating scale, common extensor hypoechogenicity, heterogenicity, neovascularity, and bony abnormalities at the enthesis were scored, and tendon thickness (longitudinal and transverse plane) was measured by a trained assessor. Sensory measures of pressure, heat and cold pain thresholds and vibration detection threshold were recorded. Pain and function were assessed using the patient-rated tennis elbow (PRTEE), pain-free grip strength, pain visual analog scale (PVAS) and quality of life (EuroQoL EQ -5D). Univariate and multivariate linear regression analyses were used to explore the association between tendon structural, sensory and clinical variables which were adjusted for age, gender and duration of symptoms. Results A negative correlation was identified between the presence of neovascularity and cold pain threshold (P = 0.015). Multiple regression analyses revealed that a combination of female gender (P = 0.044) and transverse tendon thickness (P = 0.010) were significantly associated with vibration detection threshold in affected elbows, while gender (P = 0.012) and total ultrasound scale score (P = 0.024) were significantly associated with heat pain threshold and vibration detection threshold in unaffected elbows. Heat pain threshold and gender were significantly associated with pain and disability (PRTEE; P < 0.001), and pain-free grip strength (P < 0.001) respectively, in the affected elbows. Conclusion Generally, structural and sensory measures were weakly correlated. However, neovascularity and transverse tendon thickness may be related to sensory system changes in LE.
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Titan A, Andarawis-Puri N. Tendinopathy: Investigating the Intersection of Clinical and Animal Research to Identify Progress and Hurdles in the Field. JBJS Rev 2018; 4:01874474-201610000-00002. [PMID: 27792676 DOI: 10.2106/jbjs.rvw.15.00088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Biological treatments, surgical interventions, and rehabilitation exercises have been successfully used to treat tendinopathy, but the development of effective treatments has been hindered by the lack of mechanistic data regarding the pathogenesis of the disease. While insightful, clinical studies are limited in their capacity to provide data regarding the pathogenesis of tendinopathies, emphasizing the value of animal models and cell culture studies to fill this essential gap in knowledge. Clinical pathological findings from imaging studies or histological analysis are not universal across patients with tendinopathy and have not been clearly associated with the onset of symptoms. There are several unresolved controversies, including the cellular changes that accompany the tendinopathic disease state and the role of inflammation. Additional research is needed to correlate the manifestations of the disease with its pathogenesis, with the goal of reaching a field-wide consensus on the pathology of the disease state. Such a consensus will allow standardized clinical practices to more effectively diagnose and treat tendinopathy.
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Affiliation(s)
- Ashley Titan
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY
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35
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Rio EK, Ellis RF, Henry JM, Falconer VR, Kiss ZS, Girdwood MA, Cook JL, Gaida JE. Don’t Assume the Control Group Is Normal—People with Asymptomatic Tendon Pathology Have Higher Pressure Pain Thresholds. PAIN MEDICINE 2018; 19:2267-2273. [DOI: 10.1093/pm/pny117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ebonie K Rio
- La Trobe Sport and Exercise Medicine Research Centre, College of Science Health and Engineering, La Trobe University, Bundoora, Australia
| | - Richard F Ellis
- Health and Rehabilitation Research Institute, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Jono M Henry
- Department of Physiotherapy, School of Clinical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Victoria R Falconer
- Department of Physiotherapy, School of Clinical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Zoltan S Kiss
- Imaging @ Olympic Park, Melbourne, Victoria, Australia
| | - Michael A Girdwood
- La Trobe Sport and Exercise Medicine Research Centre, College of Science Health and Engineering, La Trobe University, Bundoora, Australia
| | - Jill L Cook
- La Trobe Sport and Exercise Medicine Research Centre, College of Science Health and Engineering, La Trobe University, Bundoora, Australia
| | - Jamie E Gaida
- University of Canberra Research Institute for Sport and Exercise (UCRISE), Australia
- Discipline of Physiotherapy, University of Canberra, Australia
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36
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Pelletier R, Higgins J, Bourbonnais D. Laterality recognition of images, motor performance, and aspects related to pain in participants with and without wrist/hand disorders: An observational cross-sectional study. Musculoskelet Sci Pract 2018; 35:18-24. [PMID: 29427866 DOI: 10.1016/j.msksp.2018.01.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 01/15/2018] [Accepted: 01/24/2018] [Indexed: 01/30/2023]
Abstract
OBJECTIVE Musculoskeletal disorders are associated with altered sensory, proprioceptive and cognitive processes. Sensory processes affect the internal cortical representation of the body in space, the body schema, which in turn influences motor control. The purpose of this study was to determine if participants with wrist/hand disorders had impaired performance on a task associated with the body schema, the Left/Right Judgement Task (LRJT) and secondly how LRJT performance, motor performance, disability, pain and related aspects are associated. METHODS Fifteen healthy control participants and 15 participants with hand/wrist pain were asked to determine the laterality of images of hands. Measures of motor performance (Purdue Pegboard test), self-reported disability (Australian Canadian Hand Index), and pain related aspects (pain intensity, symptom duration, pain interference and affective distress) were recorded. RESULTS Participants with wrist/hand pain scored lower on all segments of the Purdue Pegboard test. There were differences in LRJT performance between groups for both Accuracy (p = 0.03) and Reaction Time (RT) (p < 0.01). There was no correlation between RT and Accuracy with pain intensity, pain duration, and disability. Both motor performance (r = 0.58-0.64) and LRJT performance Accuracy (r = 0.59) and RT (r = -0.56) were correlated with affective distress. A significant correlation was observed between RT and motor performance in healthy control participants (r = -0.56, p = 0.03) but not in participants with wrist/hand pain (r = -0.26, p = 0.44). CONCLUSIONS LRJT and motor performance was correlated with affective distress in participants with wrist/hand pain suggestive of complex interactions between cognitive-affective processes and sensorimotor integration.
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Affiliation(s)
- René Pelletier
- Sciences de la réadaptation, École de réadaptation, Faculté de Médecine, Université de Montréal, Montréal, Québec, H3C 3J7, Canada.
| | - Johanne Higgins
- École de réadaptation, Faculté de médecine, Université de Montréal, C.P. 6128, succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada; Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Canada.
| | - Daniel Bourbonnais
- École de réadaptation, Faculté de médecine, Université de Montréal, C.P. 6128, succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada; Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Canada.
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Pelletier R, Bourbonnais D, Higgins J. Nociception, pain, neuroplasticity and the practice of Osteopathic Manipulative Medicine. INT J OSTEOPATH MED 2018. [DOI: 10.1016/j.ijosm.2017.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Kregel J, Schumacher C, Dolphens M, Malfliet A, Goubert D, Lenoir D, Cagnie B, Meeus M, Coppieters I. Convergent Validity of the Dutch Central Sensitization Inventory: Associations with Psychophysical Pain Measures, Quality of Life, Disability, and Pain Cognitions in Patients with Chronic Spinal Pain. Pain Pract 2018; 18:777-787. [PMID: 29222851 DOI: 10.1111/papr.12672] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 11/24/2017] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Symptoms of central sensitization (CS) have been described in patients with chronic spinal pain (CSP). Although a gold standard to diagnose CS is lacking, psychophysical pain measures are often used. The Central Sensitization Inventory (CSI) is proposed as an alternative method and indirect tool for the evaluation of CS symptomatology. The aim of the current study was to evaluate the convergent validity of the CSI by investigating the association with psychophysical pain measures and self-reported measures of current pain intensity, quality of life, disability, and catastrophizing in CSP patients. METHODS One hundred sixteen patients with nonspecific CSP were included in the present study. Patients completed the CSI, were subjected to pressure pain thresholds (PPTs) and a conditioned pain modulation (CPM) paradigm, and completed questionnaires for current pain intensity, quality of life, pain disability, and pain catastrophizing. RESULTS Higher CSI scores were weakly correlated with lower PPTs (-0.276 ≤ r ≤ -0.237; all P ≤ 0.01) and not with CPM efficacy (r = 0.017; P = 0.858). Higher CSI scores were moderately correlated with higher current pain intensity (r = 0.320; P < 0.001), strongly correlated with lower physical (r = -0.617; P < 0.001) and emotional (r = -0.635; P < 0.001) quality of life, and moderately correlated with higher pain disability (r = 0.472; P < 0.001) and higher pain catastrophizing (r = 0.464; P < 0.001). CONCLUSION The CSI was weakly associated with PPTs and not with CPM efficacy in CSP patients. Moderate to strong associations were found with current pain intensity, quality of life, disability, and catastrophizing. The current results illustrate that the CSI does not reflect a direct measure of CS, yet is a representation of general distress, possible originating from CS symptoms.
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Affiliation(s)
- Jeroen Kregel
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Pain in Motion International Research Group, Brussels, Belgium.,Departments of Human Physiology and Physiotherapy, Faculty of Physical Education & Physiotherapy, Free University Brussels, Brussels, Belgium
| | - Charline Schumacher
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Mieke Dolphens
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Anneleen Malfliet
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Pain in Motion International Research Group, Brussels, Belgium.,Departments of Human Physiology and Physiotherapy, Faculty of Physical Education & Physiotherapy, Free University Brussels, Brussels, Belgium
| | - Dorien Goubert
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Pain in Motion International Research Group, Brussels, Belgium.,Departments of Human Physiology and Physiotherapy, Faculty of Physical Education & Physiotherapy, Free University Brussels, Brussels, Belgium
| | - Dorine Lenoir
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Barbara Cagnie
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Mira Meeus
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Pain in Motion International Research Group, Brussels, Belgium.,Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Iris Coppieters
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Pain in Motion International Research Group, Brussels, Belgium
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Tanaka K, Nishigami T, Mibu A, Manfuku M, Yono S, Shinohara Y, Tanabe A, Ono R. Validation of the Japanese version of the Central Sensitization Inventory in patients with musculoskeletal disorders. PLoS One 2017; 12:e0188719. [PMID: 29216211 PMCID: PMC5720706 DOI: 10.1371/journal.pone.0188719] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/13/2017] [Indexed: 12/26/2022] Open
Abstract
Background Many musculoskeletal pain conditions are characterized by hypersensitivity, which is induced by central sensitization (CS). A questionnaire, the Central Sensitization Inventory (CSI), was recently developed to help clinicians identify patients whose presenting symptoms may be related to central sensitivity syndrome (CSS). The aims of the present study were to examine criterion validity and construct validity of the Japanese version of the CSI (CSI-J), and to investigate prevalence rates of CS severity levels in patients with musculoskeletal disorders. Methods Translation of the CSI into Japanese was conducted using a forward-backward method. Two hundred and ninety patients with musculoskeletal pain disorders completed the resultant CSI-J. A subset of the patients (n = 158) completed the CSI-J again one week later. The relationships between CSI and clinical symptoms, EuroQol 5-dimension (EQ-5D) and Brief Pain Inventory (BPI), were examined for criterion validity. EQ-5D assesses Health-related QOL and BPI measures pain intensity and pain interference. The psychometric properties were evaluated with analyses of construct validity, factor structure and internal consistency, and subsequently investigate the prevalence rates of CS severity levels. Results The CSI-J demonstrated high internal consistency (Cronbach’s α = 0.89) and test-retest reliability was excellent value (ICC = 0.85). The CSI-J was significantly correlated with EQ-5D (r = −0.44), pain intensity (r = 0.42), and pain interference (r = 0.48) (p < 0.01 for all). Ten percent of the participants were above the cutoff “40”. The exploratory factor analysis resulted in 5-factor model. Conclusions This study reported that the CSI-J was a useful and psychometrically sound tool to assess CSS in Japanese patients with musculoskeletal disorders. The finding of the prevalence rates of CS severity levels in patients with musculoskeletal disorders may help clinicians to decide strategy of treatment.
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Affiliation(s)
- Katsuyoshi Tanaka
- Department of Rehabilitation, Tanabe Orthopaedics, Osaka, Osaka, Japan
- Department of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
| | - Tomohiko Nishigami
- Department of Nursing and Physical Therapy, Konan Women’s University, Kobe, Hyogo, Japan
- * E-mail:
| | - Akira Mibu
- Department of Rehabilitation, Tanabe Orthopaedics, Osaka, Osaka, Japan
- Department of Nursing and Physical Therapy, Konan Women’s University, Kobe, Hyogo, Japan
| | - Masahiro Manfuku
- Department of Rehabilitation, Tanabe Orthopaedics, Osaka, Osaka, Japan
| | - Satoko Yono
- Department of Rehabilitation, Tanabe Orthopaedics, Osaka, Osaka, Japan
| | | | - Akihito Tanabe
- Department of Rehabilitation, Tanabe Orthopaedics, Osaka, Osaka, Japan
| | - Rei Ono
- Department of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
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Nijs J, Loggia ML, Polli A, Moens M, Huysmans E, Goudman L, Meeus M, Vanderweeën L, Ickmans K, Clauw D. Sleep disturbances and severe stress as glial activators: key targets for treating central sensitization in chronic pain patients? Expert Opin Ther Targets 2017; 21:817-826. [DOI: 10.1080/14728222.2017.1353603] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jo Nijs
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Brussels, Belgium
| | - Marco L. Loggia
- MGH/HST A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Andrea Polli
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Maarten Moens
- Department of Neurosurgery and Radiology, University Hospital Brussels, Brussels, Belgium
- Department of Manual Therapy, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eva Huysmans
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Lisa Goudman
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Neurosurgery and Radiology, University Hospital Brussels, Brussels, Belgium
| | - Mira Meeus
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Rehabilitation Sciences and Physiotherapy, Ghent University, Ghent, Belgium
- Department of Rehabilitation Sciences and Physiotherapy, University of Antwerp, Antwerp, Belgium
| | - Luc Vanderweeën
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
- Private Practice for Spinal Manual Therapy, Schepdaal-Dilbeek, Belgium
| | - Kelly Ickmans
- Department of physiotherapy, human physiology and anatomy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Brussels, Belgium
| | - Daniel Clauw
- Chronic Pain and Fatigue Research Center, University of Michigan, Ann Arbor, USA
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Plinsinga ML, van Wilgen CP, Brink MS, Vuvan V, Stephenson A, Heales LJ, Mellor R, Coombes BK, Vicenzino BT. Patellar and Achilles tendinopathies are predominantly peripheral pain states: a blinded case control study of somatosensory and psychological profiles. Br J Sports Med 2017; 52:284-291. [DOI: 10.1136/bjsports-2016-097163] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2017] [Indexed: 11/04/2022]
Abstract
Study designCase–control design.BackgroundTendinopathy is characterised by pain on tendon loading. In persistent cases of upper limb tendinopathy, it is frequently associated with central nervous system sensitisation, whereas less commonly linked in the case of persistent lower limb tendinopathies.ObjectivesCompare somatosensory and psychological profiles of participants with persistent patellar (PT) and Achilles tendinopathies (AT) with pain-free controls.MethodsA comprehensive battery of Quantitative Sensory Testing (QST) was assessed at standardised sites of the affected tendon and remotely (lateral elbow) by a blinded assessor. Participants completed the Victorian Institute of Sports Assessment, a health-related quality of life questionnaire, the Hospital Anxiety and Depression Scale and the Active Australia Questionnaire. Independent t-test and analysis of covariance (sex-adjusted and age-adjusted) were performed to compare groups.ResultsParticipants with PT and AT did not exhibit differences from controls for the QST at the remote site, but there were differences at the affected tendon site. Compared with controls, participants with PT displayed significantly lower pressure pain threshold locally at the tendon (p=0.012) and fewer single limb decline squats before pain onset, whereas participants with AT only displayed fewer single heel raises before pain onset, but this pain was of a higher intensity.ConclusionPT and AT appear to be predominantly local not widespread pain states related to loading of tendons without significant features of central sensitisation.Level of evidenceLevel 4.
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de Vries AJ, van den Akker-Scheek I, Haak SL, Diercks RL, van der Worp H, Zwerver J. Effect of a patellar strap on the joint position sense of the symptomatic knee in athletes with patellar tendinopathy. J Sci Med Sport 2017; 20:986-991. [PMID: 28549903 DOI: 10.1016/j.jsams.2017.04.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/10/2017] [Accepted: 04/19/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The primary aim of this study was to investigate the effect of a patellar strap on the proprioception of the symptomatic leg in PT. Secondary aims were to investigate a possible difference in effectiveness between athletes with high and low proprioceptive acuity, and whether predictors of effectiveness could be found. DESIGN Randomised cross-over pilot study. METHODS 24 athletes with PT (age 27.3±9.0, VISA-P 50.6±11.2) performed a joint position sense test with and without a patellar strap. The difference between both conditions was analysed using linear mixed-model analysis. RESULTS No improvement in the joint position sense using the strap for the whole group was found, while those classified as having low proprioceptive acuity did improve using the strap (p=0.015, 17.2%). A larger knee girth, longer duration of symptoms and more tendon abnormalities were negatively associated with the strap's effectiveness. CONCLUSIONS The use of a patellar strap improves the knee joint proprioception - measured with joint position sense - of the symptomatic leg in athletes with poor proprioceptive acuity. Especially athletes with relatively small knee girth, short duration of symptoms and small tendon abnormalities might benefit from the strap. As proprioception plays an important role in motor control, and deficits in proprioception may put an athlete at risk for (re-)injury, these findings may be relevant for prevention as well as rehabilitation purposes in those PT athletes with low proprioceptive acuity.
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Affiliation(s)
- Astrid J de Vries
- University of Groningen, University Medical Center Groningen, Center for Sports Medicine, The Netherlands.
| | - Inge van den Akker-Scheek
- University of Groningen, University Medical Center Groningen, Center for Sports Medicine, The Netherlands
| | - Svenja L Haak
- University of Groningen, University Medical Center Groningen, Center for Sports Medicine, The Netherlands
| | - Ron L Diercks
- University of Groningen, University Medical Center Groningen, Center for Sports Medicine, The Netherlands
| | - Henk van der Worp
- University of Groningen, University Medical Center Groningen, Center for Sports Medicine, The Netherlands
| | - Johannes Zwerver
- University of Groningen, University Medical Center Groningen, Center for Sports Medicine, The Netherlands
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Malfliet A, Leysen L, Pas R, Kuppens K, Nijs J, Van Wilgen P, Huysmans E, Goudman L, Ickmans K. Modern pain neuroscience in clinical practice: applied to post-cancer, paediatric and sports-related pain. Braz J Phys Ther 2017; 21:225-232. [PMID: 28579013 PMCID: PMC5537480 DOI: 10.1016/j.bjpt.2017.05.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/10/2017] [Accepted: 01/25/2017] [Indexed: 12/18/2022] Open
Abstract
Generalized hypersensitivity in post-cancer, sports-related and pediatric pain. Rationale for pain education, stress management and cognition targeted exercises. Need to change from a biomedical or psychosocial to an integrated approach.
In the last decade, evidence regarding chronic pain has developed exponentially. Numerous studies show that many chronic pain populations show specific neuroplastic changes in the peripheral and central nervous system. These changes are reflected in clinical manifestations, like a generalized hypersensitivity of the somatosensory system. Besides a hypersensitivity of bottom-up nociceptive transmission, there is also evidence for top-down facilitation of pain due to malfunctioning of the endogenous descending nociceptive modulatory systems. These and other aspects of modern pain neuroscience are starting to be applied within daily clinical practice. However, currently the application of this knowledge is mostly limited to the general adult population with musculoskeletal problems, while evidence is getting stronger that also in other chronic pain populations these neuroplastic processes may contribute to the occurrence and persistence of the pain problem. Therefore, this masterclass article aims at giving an overview of the current modern pain neuroscience knowledge and its potential application in post-cancer, paediatric and sports-related pain problems.
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Affiliation(s)
- Anneleen Malfliet
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊); Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Belgium; Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Belgium.
| | - Laurence Leysen
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊)
| | - Roselien Pas
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊); Department of Rehabilitation Sciences and Physiotherapy (REVAKI), Faculty of Medicine and Health Sciences, University of Antwerp, Belgium
| | - Kevin Kuppens
- Pain in Motion International Research Group,(◊); Department of Rehabilitation Sciences and Physiotherapy (REVAKI), Faculty of Medicine and Health Sciences, University of Antwerp, Belgium
| | - Jo Nijs
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊); Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Belgium
| | - Paul Van Wilgen
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊); Transcare, Transdisciplinary Pain-management Centre,(◊◊) The Netherlands
| | - Eva Huysmans
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊)
| | - Lisa Goudman
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊); Department of Neurosurgery, University Hospital Brussels, Brussels, Belgium
| | - Kelly Ickmans
- Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Belgium; Pain in Motion International Research Group,(◊); Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Belgium
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Mallows A, Debenham J, Walker T, Littlewood C. Association of psychological variables and outcome in tendinopathy: a systematic review. Br J Sports Med 2016; 51:743-748. [DOI: 10.1136/bjsports-2016-096154] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2016] [Indexed: 12/23/2022]
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Blickenstaff C, Pearson N. Reconciling movement and exercise with pain neuroscience education: A case for consistent education. Physiother Theory Pract 2016; 32:396-407. [DOI: 10.1080/09593985.2016.1194653] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Wijma AJ, van Wilgen CP, Meeus M, Nijs J. Clinical biopsychosocial physiotherapy assessment of patients with chronic pain: The first step in pain neuroscience education. Physiother Theory Pract 2016; 32:368-84. [DOI: 10.1080/09593985.2016.1194651] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Drew MK, Lovell G, Palsson TS, Chiarelli PE, Osmotherly PG. Do Australian Football players have sensitive groins? Players with current groin pain exhibit mechanical hyperalgesia of the adductor tendon. J Sci Med Sport 2016; 19:784-8. [PMID: 26794720 DOI: 10.1016/j.jsams.2015.12.516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 12/02/2015] [Accepted: 12/19/2015] [Indexed: 01/17/2023]
Abstract
OBJECTIVES This is the first study to evaluate the mechanical sensitivity, clinical classifications and prevalence of groin pain in Australian football players. DESIGN Case-control. METHODS Professional (n=66) and semi-professional (n=9) Australian football players with and without current or previous groin injuries were recruited. Diagnoses were mapped to the Doha Agreement taxonomy. Point and career prevalence of groin pain was calculated. Pressure pain thresholds (PPTs) were assessed at regional and distant sites using handheld pressure algometry across four sites bilaterally (adductor longus tendon, pubic bone, rectus femoris, tibialis anterior muscle). To assess the relationship between current groin pain and fixed effects of hyperalgesia of each site and a history of groin pain, a mixed-effect logistic regression model was utilised. Receiver Operator Characteristic (ROC) curve were determined for the model. RESULTS Point prevalence of groin pain in the preseason was 21.9% with a career prevalence of 44.8%. Adductor-related groin pain was the most prevalent classification in the pre-season period. Hyperalgesia was observed in the adductor longus tendon site in athletes with current groin pain (OR=16.27, 95% CI 1.86 to 142.02). The ROC area under the curve of the regression model was fair (AUC=0.76, 95% CI 0.54 to 0.83). CONCLUSIONS Prevalence data indicates that groin pain is a larger issue than published incidence rates imply. Adductor-related groin pain is the most common diagnosis in pre-season in this population. This study has shown that hyperalgesia exists in Australian football players experiencing groin pain indicating the value of assessing mechanical pain sensitivity as a component of the clinical assessment.
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Affiliation(s)
- Michael K Drew
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Australia; Department of Physical Therapies, Australian Institute of Sport, Australia.
| | - Gregory Lovell
- Department of Sports Medicine, Australian Institute of Sport, Australia
| | - Thorvaldur S Palsson
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark
| | - Pauline E Chiarelli
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Australia
| | - Peter G Osmotherly
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Australia
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Patellar Tendinopathy: Clinical Diagnosis, Load Management, and Advice for Challenging Case Presentations. J Orthop Sports Phys Ther 2015; 45:887-98. [PMID: 26390269 DOI: 10.2519/jospt.2015.5987] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Synopsis The hallmark features of patellar tendinopathy are (1) pain localized to the inferior pole of the patella and (2) load-related pain that increases with the demand on the knee extensors, notably in activities that store and release energy in the patellar tendon. While imaging may assist in differential diagnosis, the diagnosis of patellar tendinopathy remains clinical, as asymptomatic tendon pathology may exist in people who have pain from other anterior knee sources. A thorough examination is required to diagnose patellar tendinopathy and contributing factors. Management of patellar tendinopathy should focus on progressively developing load tolerance of the tendon, the musculoskeletal unit, and the kinetic chain, as well as addressing key biomechanical and other risk factors. Rehabilitation can be slow and sometimes frustrating. This review aims to assist clinicians with key concepts related to examination, diagnosis, and management of patellar tendinopathy. Difficult clinical presentations (eg, highly irritable tendon, systemic comorbidities) as well as common pitfalls, such as unrealistic rehabilitation time frames and overreliance on passive treatments, are also discussed. J Orthop Sports Phys Ther 2015;45(11):887-898. Epub 21 Sep 2015. doi:10.2519/jospt.2015.5987.
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Evidence of Nervous System Sensitization in Commonly Presenting and Persistent Painful Tendinopathies: A Systematic Review. J Orthop Sports Phys Ther 2015; 45:864-75. [PMID: 26390275 DOI: 10.2519/jospt.2015.5895] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Study Design Systematic review. Objectives To elucidate if there is sensitization of the nervous system in those with persistent rotator cuff (shoulder), lateral elbow, patellar, and Achilles tendinopathies. Background Tendinopathy can be difficult to treat, and persistent intractable pain and dysfunction are frequent. It is hypothesized that induction or maintenance of persistent pain in tendinopathy may be, at least in part, based on changes in the nervous system. Methods The PRISMA guidelines were followed. Relevant articles were identified through a computerized search in Embase, PubMed, and Web of Science, followed by a manual search of reference lists of retained articles. To be eligible, studies had to include quantitative sensory testing and evaluate individuals diagnosed with a persistent tendinopathy of the rotator cuff (shoulder), lateral elbow, patella, or Achilles tendon. Methodological quality assessment was evaluated with the Newcastle-Ottawa Scale. Results In total, 16 full-text articles met the criteria for inclusion, of which the majority were case-control studies with heterogeneous methodological quality. No studies on Achilles tendinopathy were found. Mechanical algometry was the predominant quantitative sensory testing used. Lowered pressure pain threshold was observed across different tendinopathies at the site of tendinopathy, as well as at other sites, the latter being suggestive of central sensitization. Conclusion Although more research on sensory abnormalities is warranted, it appears likely that there is an association between persistent tendon pain and sensitization of the nervous system. This evidence is primarily from studies of upper-limb tendinopathy, and caution should be exercised with inference to lower-limb tendinopathy. J Orthop Sports Phys Ther 2015;45(11):864-875. Epub 21 Sep 2015. doi:10.2519/jospt.2015.5895.
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