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Amen TB, Dee EC, Jain B, Batter S, Jain U, Bajaj SS, Varady NH, Amen LJ, Goodman SM. Contemporary Patterns of Financial Toxicity Among Patients With Rheumatologic Disease in the United States. J Clin Rheumatol 2024; 30:223-228. [PMID: 38976618 DOI: 10.1097/rhu.0000000000002110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
BACKGROUND/OBJECTIVE Rheumatologic diseases encompass a group of disabling conditions that often require expensive clinical treatments and limit an individual's ability to work and maintain a steady income. The purpose of this study was to evaluate contemporary patterns of financial toxicity among patients with rheumatologic disease and assess for any associated demographic factors. METHODS The cross-sectional National Health Interview Survey was queried from 2013 to 2018 for patients with rheumatologic disease. Patient demographics and self-reported financial metrics were collected or calculated including financial hardship from medical bills, financial distress, food insecurity, and cost-related medication (CRM) nonadherence. Multivariable logistic regressions were used to assess for factors associated with increased financial hardship. RESULTS During the study period, 20.2% of 41,502 patients with rheumatologic disease faced some degree of financial hardship due to medical bills, 55.0% of whom could not pay those bills. Rheumatologic disease was associated with higher odds of financial hardship from medical bills (adjusted odds ratio, 1.29; 95% confidence interval, 1.22-1.36; p < 0.001) with similar trends for patients suffering from financial distress, food insecurity, and CRM nonadherence (p < 0.001 for all). Financial hardship among patients with rheumatologic disease was associated with being younger, male, Black, and uninsured ( p < 0.001 for all). CONCLUSION In this nationally representative study, we found that a substantial proportion of adults with rheumatologic disease in the United States struggled with paying their medical bills and suffered from food insecurity and CRM nonadherence. National health care efforts and guided public policy should be pursued to help ease the burden of financial hardship for these patients.
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Affiliation(s)
| | | | - Bhav Jain
- Stanford University School of Medicine, Stanford, CA
| | - Stephen Batter
- Department of Rheumatology, Hospital for Special Surgery, New York, NY
| | - Urvish Jain
- University of Pittsburgh School of Medicine, Pittsburgh, PA
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Zhu J, Lim A, McCaskie AW, Khanduja V. Viscosupplementation Is Effective for the Treatment of Osteoarthritis in the Hip: A Systematic Review. Arthroscopy 2024; 40:1908-1922.e13. [PMID: 38000487 DOI: 10.1016/j.arthro.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 09/28/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
PURPOSE To assess the efficacy of intra-articular viscosupplementation as a therapeutic intervention for hip osteoarthritis (OA), as well as to assess the duration of efficacy, effect of dose, composition and number of injections of the viscosupplement, and the incidence of adverse effects. METHODS We performed a systematic review using the literature search from the following databases: Embase, Medline, PubMed, Web of Science, and Scopus. Quality assessment of the included studies was performed using the Modified Newcastle-Ottawa Quality Assessment Scale. Random-effects meta-analysis and mixed-effects subgroup analysis were carried out, but due to the high heterogeneity, low level of evidence, and high risk of bias of the included studies after analyzing the data, weighted means and pooled estimates have not been provided. Instead, we have provided a subjective synthesis of the results. RESULTS Forty studies were included in the analysis from an initial search of 3,265 studies, with data from a total of 3,350 patients. The level of available evidence was low with an overall high risk of bias. Nearly all studies showed a reduction in mean pain at 1 month, 3 months, and 6 months of follow-up, as well as at the end point, and an improvement in mean patient-reported function was also seen at these time points. However, heterogeneity was extremely high at all time points and remained despite attempts at removing outliers. Subgroup analyses looking at the effects of dose, volume, composition of viscosupplement, and number of injections were carried out, but substantial heterogeneity still remained. There were no lasting adverse effects. CONCLUSIONS Weak evidence suggests that viscosupplementation improves patient-reported pain and function at end point compared to baseline, regardless of dose, volume, composition, and number of injections. However, due to the high heterogeneity, low level of evidence, and high risk of bias in the current available literature, the strength of our conclusions is limited. LEVEL OF EVIDENCE Level IV, systematic review of level I to IV studies.
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Affiliation(s)
- John Zhu
- School of Clinical Medicine, University of Cambridge, Cambridge, England
| | - Anthony Lim
- School of Clinical Medicine, University of Cambridge, Cambridge, England
| | - Andrew W McCaskie
- School of Clinical Medicine, University of Cambridge, Cambridge, England; Addenbrooke's-Cambridge University Hospitals NHS Foundation Trust, Cambridge, England
| | - Vikas Khanduja
- School of Clinical Medicine, University of Cambridge, Cambridge, England; Addenbrooke's-Cambridge University Hospitals NHS Foundation Trust, Cambridge, England.
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Mease P, Kuritzky L, Wright WL, Mallick-Searle T, Fountaine R, Yang R, Sadrarhami M, Faison W, Johnston E, Viktrup L. Efficacy and safety of tanezumab, NSAIDs, and placebo in patients with moderate to severe hip or knee osteoarthritis and a history of depression, anxiety, or insomnia: post-hoc analysis of phase 3 trials. Curr Med Res Opin 2022; 38:1909-1922. [PMID: 35980115 DOI: 10.1080/03007995.2022.2113689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective: Treatment outcomes for chronic pain can be poor in patients with depression, anxiety, or insomnia. This analysis evaluated the efficacy and safety of subcutaneous tanezumab, nonsteroidal anti-inflammatory drugs (NSAIDs), and placebo in patients with osteoarthritis (OA) and a history of these conditions using data from three phase 3 studies.Methods: A post-hoc analysis of data from two pooled placebo-controlled studies and one NSAID-controlled study of subcutaneous tanezumab. All patients had moderate to severe knee or hip OA that was inadequately controlled with standard-of-care analgesics. Efficacy outcomes were least-squares mean change from baseline to Week 16 in Western Ontario McMaster Universities OA Index (WOMAC) Pain, WOMAC Physical Function, Patient's global assessment of OA, and EQ-5D-5L scores. Results were summarized for patients with and without a history of depression, anxiety, or insomnia at baseline.Results: 1545 patients were treated in the pooled placebo-controlled studies (history of depression, 12%; anxiety, 8%; insomnia, 10%; any, 23%) and 2996 in the NSAID-controlled study (16%, 11%, 13%, 28%, respectively). In groups with positive histories, 38-80% took antidepressant or anxiolytic medications at baseline. Within treatments, largely similar improvements in efficacy outcomes were observed in patients with and without a history of depression, anxiety, or insomnia; the types of treatment-emergent adverse events were similar.Conclusions: Patients with OA and a history of depression, anxiety, or insomnia did not appear to experience reduced efficacy outcomes or an altered safety profile in response to tanezumab or NSAID treatment as compared with those without. NCT02697773; NCT02709486; NCT02528188.
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Affiliation(s)
- Philip Mease
- Swedish Medical Center/Providence St. Joseph Health and University of Washington, Seattle, WA, USA
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4
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Sanftenberg L, Dirscherl A, Schelling J, Gensichen J, Voigt K, Bergmann A, Katzenberger B, Grill E. [Quality of care in family practice and quality of life from the point of view of older patients with gon- and coxosteoarthritis - results from the MobilE-TRA cohort study]. MMW Fortschr Med 2021; 163:19-26. [PMID: 34817785 DOI: 10.1007/s15006-021-0455-x] [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] [Indexed: 11/30/2022]
Abstract
BACKGROUND A central role in the care of patients with osteoarthritis has the family practice. The aim of this analysis is to assess the association between the quality of family practice care from the osteoarthritis patients' perspectives and their health-related quality of life, disease-specific symptoms, and physical function. METHOD 111 patients suffering from cox- and/or gonosteoarthritis at the age of 65 or older had been recruited from family practices in Saxony and Bavaria. The participants received a paper-based questionnaire that assessed their sociodemographic data, the patients' level of depression (PHQ-9), physical activity, health-related quality of life (EQ-5D with EQ-VAS), as well as the quality of care in family practice from the patients' perspectives (PACIC short form). Furthermore, disease-specific symptoms (pain, stiffness) and physical function of patients with osteoarthritis were investigated (WOMAC). The analysis was performed with multiple linear regression models. RESULTS A greater extent of depression was associated with stronger pain (beta=0,378; 95% CI [0,180; 0,576]), more stiffness of the joints (beta=0,223; 95% CI [0,135; 0,310]), and worse physical function (beta=1,628; 95% CI [0,908; 2,348]). The analysis also showed that older (beta=-0,901; 95% CI [-1,705; -0,097]), more depressive (beta=-1,654; 95% CI [-2,820; -0,488]) osteoarthritis patients were associated with a lower health-related quality of life. A statistically significant association between the quality of family practice care from the patients' perspectives and their health-related quality of life, disease-specific symptoms, and physical function could not be detected. CONCLUSIONS Previous literature provides evidence for an association between the quality of care of patients with a chronic illness and their quality of life or other health outcomes. The results of this research work did not align with these findings. Since depression was associated with decreased health-related quality of life and more severe complaints of patients suffering from osteoarthritis, potential depressive comorbidity should not be disregarded in the health care of this patient group and should be treated if necessary.
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Affiliation(s)
- Linda Sanftenberg
- Institut für Allgemeinmedizin, Klinikum der Universität München/Campus Innenstadt, Pettenkoferstraße 8a, 80336, München, Germany.
| | - Anna Dirscherl
- Institut für Allgemeinmedizin, LMU Klinikum München, München, Germany
| | - Jörg Schelling
- Institut für Allgemeinmedizin, Klinikum der Universität München der LMU, München, Germany
| | | | - Karen Voigt
- Bereich Allgemeinmedizin, Medizinische Fakultät der TU Dresden, Dresden, Germany
| | - Antje Bergmann
- Bereich Allgemeinmedizin, Med. Fakultät der TU Dresden, Dresden, Germany
| | - Benedict Katzenberger
- der LMU München, Institut für Medizinische Informationsverarbeitung, Biometrie und Epidemiologie (IBE), München, Germany
| | - Eva Grill
- der LMU München, Institut für Medizinische Informationsverarbeitung, Biometrie und Epidemiologie (IBE), München, Germany
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Steverink JG, Oostinga D, van Tol FR, van Rijen MHP, Mackaaij C, Verlinde-Schellekens SAMW, Oosterman BJ, Van Wijck AJM, Roeling TAP, Verlaan JJ. Sensory Innervation of Human Bone: An Immunohistochemical Study to Further Understand Bone Pain. THE JOURNAL OF PAIN 2021; 22:1385-1395. [PMID: 33964414 DOI: 10.1016/j.jpain.2021.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 11/30/2022]
Abstract
Skeletal diseases and their surgical treatment induce severe pain. The innervation density of bone potentially explains the severe pain reported. Animal studies concluded that sensory myelinated A∂-fibers and unmyelinated C-fibers are mainly responsible for conducting bone pain, and that the innervation density of these nerve fibers was highest in periosteum. However, literature regarding sensory innervation of human bone is scarce. This observational study aimed to quantify sensory nerve fiber density in periosteum, cortical bone, and bone marrow of axial and appendicular human bones using immunohistochemistry and confocal microscopy. Multivariate Poisson regression analysis demonstrated that the total number of sensory and sympathetic nerve fibers was highest in periosteum, followed by bone marrow, and cortical bone for all bones studied. Bone from thoracic vertebral bodies contained most sensory nerve fibers, followed by the upper extremity, lower extremity, and parietal neurocranium. The number of nerve fibers declined with age and did not differ between male and female specimens. Sensory nerve fibers were organized as a branched network throughout the periosteum. The current results provide an explanation for the severe pain accompanying skeletal disease, fracture, or surgery. Further, the results could provide more insight into mechanisms that generate and maintain skeletal pain and might aid in developing new treatment strategies. PERSPECTIVE: This article presents the innervation of human bone and assesses the effect of age, gender, bone compartment and type of bone on innervation density. The presented data provide an explanation for the severity of bone pain arising from skeletal diseases and their surgical treatment.
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Affiliation(s)
- Jasper G Steverink
- Department of Orthopedic Surgery, University Medical Center Utrecht, The Netherlands; SentryX B.V., Woudenbergseweg 41, Austerlitz, The Netherlands.
| | - Douwe Oostinga
- Department of Orthopedic Surgery, University Medical Center Utrecht, The Netherlands
| | - Floris R van Tol
- Department of Orthopedic Surgery, University Medical Center Utrecht, The Netherlands; SentryX B.V., Woudenbergseweg 41, Austerlitz, The Netherlands
| | - Mattie H P van Rijen
- Department of Orthopedic Surgery, University Medical Center Utrecht, The Netherlands
| | - Claire Mackaaij
- Department of Anatomy, University Medical Center Utrecht, The Netherlands
| | | | - Bas J Oosterman
- SentryX B.V., Woudenbergseweg 41, Austerlitz, The Netherlands
| | - Albert J M Van Wijck
- Department of Anesthesiology, University Medical Center Utrecht, The Netherlands
| | - Tom A P Roeling
- Department of Anatomy, University Medical Center Utrecht, The Netherlands
| | - Jorrit-Jan Verlaan
- Department of Orthopedic Surgery, University Medical Center Utrecht, The Netherlands; SentryX B.V., Woudenbergseweg 41, Austerlitz, The Netherlands
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Devasenapathy N, Malhotra R, Mittal K, Garg B, Kumar V, Zodpey S, Dogra H, Maddison R, Belavy DL. Higher Disability in Women Than Men Scheduled for Total Knee Arthroplasty for Degenerative Osteoarthritis: A Cross-Sectional Analysis From India. ACR Open Rheumatol 2020; 2:309-319. [PMID: 32386129 PMCID: PMC7301870 DOI: 10.1002/acr2.11137] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/24/2020] [Indexed: 01/27/2023] Open
Abstract
Objective Higher level impairments and activity limitation among those scheduled for total knee arthroplasty (TKA) is known. Sex differences in participation restriction which is the final domain of disablement pathway is not known. No data from developing countries exist on sex differences in disability levels at the time of TKA. Methods In a cross‐sectional analysis of 240 patients (188 women; 72 men) scheduled for TKA, impairment (pain, symptoms, quadricep muscle strength, and knee range of motion [ROM]), activity limitation (self‐reported and objective performance‐based measurements), and participation restriction were compared. Multivariable regression analyses were used to adjust for key sociodemographic and clinical characteristics. Associations between impairments and participation restriction were analyzed. Results Compared with men, women were more likely to have higher levels of impairment (knee injury and osteoarthritis outcome pain score adjusted mean difference [aMD]: −6.9 [95% confidence interval {CI} −13.7 to −0.18]; flexion ROM of less than 100° adjusted odds ratio: 5.7 [95% CI 1.6‐20.3]; and 36% lower muscle strength [95% CI 24%‐49%]) and lower objectively measured functional ability (walking speed aMD: −0.12 m/s [95% CI −0.23 to −0.02]; stair climbing time aMD: 9.5 s [95% CI 1.5‐17.5]). Participation restriction was higher in women compared with men. Of the impairment measures (pain, ROM, and muscle strength), pain contributed to participation restriction in both sexes. Conclusion This study demonstrated higher levels of disability in women than in men at the time of TKA. Effect of pain on participation restriction was higher compared with muscle strength and ROM. Evidence of delay in decision‐making to undergo TKA and reasons for delay need to be studied specifically in the context of lower middle–income countries.
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Affiliation(s)
- Niveditha Devasenapathy
- Indian Institute of Public Health-Delhi, Public Health Foundation of India, New Delhi, India, and Deakin University, Geelong, Victoria, Australia
| | | | - Kanchan Mittal
- All India Institute of Medical Sciences, New Delhi, India
| | - Bhavuk Garg
- All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Kumar
- All India Institute of Medical Sciences, New Delhi, India
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Oostinga D, Steverink JG, van Wijck AJM, Verlaan JJ. An understanding of bone pain: A narrative review. Bone 2020; 134:115272. [PMID: 32062002 DOI: 10.1016/j.bone.2020.115272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 12/20/2022]
Abstract
Skeletal pathologies are often accompanied by bone pain, which has negative effects on the quality of life and functional status of patients. Bone pain can be caused by a wide variety of injuries and diseases including (poorly healed) fractures, bone cancer, osteoarthritis and also iatrogenic by skeletal interventions. Orthopedic interventions are considered to be the most painful surgical procedures overall. Two major groups of medication currently used to attenuate bone pain are NSAIDs and opioids. However, these systemic drugs frequently introduce adverse events, emphasizing the need for alternative therapies that are directed at the pathophysiological mechanisms underlying bone pain. The periosteum, cortical bone and bone marrow are mainly innervated by sensory A-delta fibers and C-fibers. These fibers are mostly present in the periosteum rendering this structure most sensitive to nociceptive stimuli. A-delta fibers and C-fibers can be activated upon mechanical distortion, acidic environment and increased intramedullary pressure. After activation, these fibers can be sensitized by inflammatory mediators, phosphorylation of acid-sensing ion channels and cytokine receptors, or by upregulation of transcription factors. This can result in a change of pain perception such that normally non-noxious stimuli are now perceived as noxious. Pathological conditions in the bone can produce neurotrophic factors that bind to receptors on A-delta fibers and C-fibers. These fibers then start to sprout and increase the innervation density of the bone, making it more sensitive to nociceptive stimuli. In addition, repetitive painful stimuli cause neurochemical and electrophysiological alterations in afferent sensory neurons in the spinal cord, which leads to central sensitization, and can contribute to chronic bone pain. Understanding the pathophysiological mechanisms underlying bone pain in different skeletal injuries and diseases is important for the development of alternative, targeted pain treatments. These pain mechanism-based alternatives have the potential to improve the quality of life of patients suffering from bone pain without introducing undesirable systemic effects.
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Affiliation(s)
- Douwe Oostinga
- Department of Orthopedics, University Medical Centre Utrecht, Heidelberglaan 100, 3508 GA Utrecht, the Netherlands.
| | - Jasper G Steverink
- Department of Orthopedics, University Medical Centre Utrecht, Heidelberglaan 100, 3508 GA Utrecht, the Netherlands.
| | - Albert J M van Wijck
- Department of Anesthesiology, University Medical Centre Utrecht, Heidelberglaan 100, 3508 GA Utrecht, the Netherlands.
| | - Jorrit-Jan Verlaan
- Department of Orthopedics, University Medical Centre Utrecht, Heidelberglaan 100, 3508 GA Utrecht, the Netherlands.
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Yoon S, Kang JJ, Kim J, Park S, Kim JM. Efficacy and Safety of Intra-articular Injections of Hyaluronic Acid Combined With Polydeoxyribonucleotide in the Treatment of Knee Osteoarthritis. Ann Rehabil Med 2019; 43:204-214. [PMID: 31072087 PMCID: PMC6509584 DOI: 10.5535/arm.2019.43.2.204] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/25/2018] [Indexed: 12/16/2022] Open
Abstract
Objective To assess the clinical efficacy and safety of intra-articular injection of hyaluronic acid (HA) combined with polydeoxyribonucleotide (PDRN) in patients with knee osteoarthritis in comparison with that of HA alone. Methods The current single-center, prospective, randomized, double-blind, controlled study was conducted in 36 patients with knee osteoarthritis at our medical institution. All the eligible patients (n=30) were equally assigned to two treatment arms (trial group ‘HA+PDRN’ and control group ‘HA’). For efficacy assessment, the patients were evaluated for the visual analogue scale (VAS) scores, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and the Knee Society Scores (KSS), all of which served as efficacy outcome measures. We monitored time-dependent changes in efficacy outcome measures at baseline and 1, 3 and 6 months. Subsequently, we compared differences in changes in efficacy outcome measures at 6 months from baseline between the two groups. Moreover, we assessed the safety based on the treatment-emergent adverse events (TEAEs), adverse drug reactions (ADRs) and any other complications serving as safety outcome measures. Results There were significant differences in changes in the VAS scores, the WOMAC scores in all domains, except ‘Stiffness’, the total WOMAC scores, and the KSS scores in all the domains at 6 months from baseline between the two groups (p<0.05). In our series, there were no TEAEs, ADRs, and any other complications. Conclusion Intra-articular injections of HA combined with PDRN can also be considered in the treatment of knee osteoarthritis. However, further large-scale and multi-center studies are required to demonstrate the potential of the proposed combination.
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Affiliation(s)
- Seihee Yoon
- Department of Rehabilitation Medicine, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Korea
| | - Jung Joong Kang
- Department of Rehabilitation Medicine, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Korea
| | - Jungin Kim
- Department of Rehabilitation Medicine, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Korea
| | - Seunghun Park
- Department of Rehabilitation Medicine, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Korea
| | - Jong Moon Kim
- Department of Rehabilitation Medicine, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Korea
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Sharma A, Kudesia P, Shi Q, Gandhi R. Anxiety and depression in patients with osteoarthritis: impact and management challenges. Open Access Rheumatol 2016; 8:103-113. [PMID: 27843376 PMCID: PMC5098683 DOI: 10.2147/oarrr.s93516] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background Anxiety and depression are common psychological comorbidities that impact the quality of life (QoL) of patients. In this systematic review, we 1) determined the impact of anxiety and depression on outcomes in patients with osteoarthritis (OA) and 2) summarized unique challenges these comorbidities present to current OA management. Patients and methods A systematic literature search was performed using the OVID Medline and EMBASE databases until April 2016. Full-text research articles published in English from the year 2000 onward with a sample size of >100 were included in this review. Eligible research articles were reviewed and the following data were extracted: study author(s), year of publication, study design, and key findings. Results A total of 38 studies were included in the present review. The present study found that both anxiety and/or depression were highly prevalent among patients with OA. Patients with OA diagnosed with these comorbidities experienced more pain, had frequent hospital visits, took more medication, and reported less optimal outcomes. Management strategies in the form of self-care, telephone support, audio/video education programs, and new pharmacotherapies were reported with favorable results. Conclusion Anxiety and depression adversely impact the QoL of patients with OA. Physicians/caregivers are highly recommended to consider these comorbidities in patients with OA. Ultimately, a holistic individualized management approach is necessary to improve patient outcomes.
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Affiliation(s)
- Anirudh Sharma
- Division of Genetics and Development, Krembil Research Institute
| | - Prtha Kudesia
- Division of Orthopaedic Surgery, Toronto Western Hospital, Toronto, ON, Canada
| | - Qian Shi
- Division of Orthopaedic Surgery, Toronto Western Hospital, Toronto, ON, Canada
| | - Rajiv Gandhi
- Division of Orthopaedic Surgery, Toronto Western Hospital, Toronto, ON, Canada
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10
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de Luca K, Parkinson L, Pollard H, Byles J, Blyth F. How is the experience of pain measured in older, community-dwelling people with osteoarthritis? A systematic review of the literature. Rheumatol Int 2015; 35:1461-72. [PMID: 25869349 DOI: 10.1007/s00296-015-3268-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 04/04/2015] [Indexed: 12/11/2022]
Abstract
The objective of the study was to perform a systematic review to identify and appraise outcome measures and measures of pain that are used to assess the experience of pain by older people with osteoarthritis, and to assess whether these measures are effective at capturing the multidimensional nature of the experience of this pain. A systematic review of five electronic databases from January 1996 to March 2013 was done. Inclusion criteria were cohort/observational and cross-sectional studies; specific diagnosis of OA; employed outcome measures of pain and/or health and/or quality of life which included questions about pain; and considered older adults. Articles were reviewed for methodological quality using the Effective Public Health Practice Project Quality Assessment Tool for Quantitative Studies. A total of 14 publications met the inclusion criteria, and 11 discrete studies were included in the review. The studies used 21 different outcome measures, utilizing 13 measures of pain. Sensory, affective and cognitive dimensions of pain were captured by the measures, albeit studies predominantly measured intensity or severity alone. Measures of pain used in epidemiological studies do not adequately capture the multidimensional nature of the experience of pain in osteoarthritis. There is a fraught complexity in the multidimensionality of the experience of pain in osteoarthritis, and studies exploring osteoarthritis pain in older people should attempt to capture this multidimensionality by employing multiple valid and reliable outcome measures that capture specific dimensions of the pain experience.
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Affiliation(s)
- Katie de Luca
- Research Centre for Gender Health and Ageing, University of Newcastle, 18 Palm Court South West Rocks, Callaghan, NSW, 2431, Australia,
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11
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Regier NG, Parmelee PA. The stability of coping strategies in older adults with osteoarthritis and the ability of these strategies to predict changes in depression, disability, and pain. Aging Ment Health 2015; 19:1113-22. [PMID: 25658300 PMCID: PMC4527956 DOI: 10.1080/13607863.2014.1003286] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Given the chronically painful, incurable nature of osteoarthritis, effective cognitive and behavioral coping strategies may be critical for older adults with the disease. Little is known about how and why coping changes over time, nor about stability of coping strategies in persons with osteoarthritis. The aims of this work were to examine the structure of coping in older adults with osteoarthritis, the association of coping strategies with well-being, the stability of coping over time, and its association with changes in well-being over the same period. METHOD In a cross-sectional study, 199 older adults with osteoarthritis of the knee were assessed at baseline and two-years' follow-up. Items from two coping scales were factor analyzed, and Pearson's correlations and paired-samples t-tests assessed relative and absolute stability of the resultant coping strategies. CFA assessed the stability of the factor structure itself. Ordinary least-squares regression analyses examined the impact of change in coping on well-being. RESULTS A five-factor coping solution emerged: stoicism, refocusing, problem-solving, wishful-thinking, and emotion-focused coping. The factor structure showed stability over the two-year period. Absolute stability of strategies varied, indicating that change in coping styles was possible. CONCLUSION Changes in coping style predicts future well-being; however, coping remains malleable with age and maladaptive strategies can be effectively targeted. Greater knowledge of the utility or maladaptive nature of a given strategy may help guide decisions about interventions for patients with osteoarthritis and encourage more adaptive coping styles.
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Affiliation(s)
- Natalie G. Regier
- University of Alabama Center for Mental Health and Aging & Department of Psychology, Tuscaloosa, AL
- Johns Hopkins University Center for Innovative Care in Aging, Baltimore, MD
| | - Patricia A. Parmelee
- University of Alabama Center for Mental Health and Aging & Department of Psychology, Tuscaloosa, AL
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Abstract
Negative affect appears frequently in rheumatic diseases, but studies about their importance and prevalence in systemic sclerosis patients are scarce, and the results are inconclusive separately. We conducted a comprehensive search on April 2013 of PubMed, Medline, and PsycINFO databases to identify original research studies published. A total of 48 studies were included in this systematic review. We found negative emotions have very high levels in these patients, compared to both healthy population other chronic rheumatic patients assessed with the same instruments and cutoffs. Depression has been, of the three negative emotions that we approach to in this review, the most widely studied in systemic sclerosis, followed by anxiety. Despite the fact that anger is a common emotion in these diseases is poorly studied. Methodologic issues limited the ability to draw strong conclusions from studies of predictors. Disease-specific symptoms (swollen joints, gastrointestinal and respiratory symptoms and digital ulcers) and factors related to physical appearance were associated with negative emotions. Interdisciplinary care and biopsychosocial approach would have a great benefit in the clinical management of these patients.
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Fuchs J, Rabenberg M, Scheidt-Nave C. Prävalenz ausgewählter muskuloskelettaler Erkrankungen. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2013; 56:678-86. [DOI: 10.1007/s00103-013-1687-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Homoud AHA. Knowledge, attitude, and practice of primary health care physicians in the management of osteoarthritis in Al-Jouf province, Saudi Arabia. Niger Med J 2013; 53:213-9. [PMID: 23661881 PMCID: PMC3640242 DOI: 10.4103/0300-1652.107556] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background: Primary health care (PHC) physicians manage most patients with osteoarthritis (OA). In Saudi Arabia, very little is known about the management of OA by PHC physicians. This study aims to assess knowledge, attitude, and practice of PHC physicians in the management of OA. Materials and Methods: During October 2011, a cross-sectional survey was conducted on physicians who were practicing at the primary care centers in AlJouf province of Saudi Arabia. The physicians were asked to fill a valid questionnaire comprised of 35 closed ended questions, 6 items about their socio-demographic characters, and a very well modified 29 questions about their knowledge, attitude, and practice in the management of OA. Data was processed and analysed using SPSS (version 16) program, the level of significance was set as Chi-square test was applied for analysis of categorical data. Results: Response rate (77/90=85.6% yielded 77 questionnaires for analysis. The mean ± SD age of respondents was 38 (12.3) years. Majority of the physicians surveyed, 58 (75.3%) considered OA as a common health problem in Saudi Arabia. Only 28 (36.4%) physicians surveyed will achieve continuity of care for OA, whereas more than half (n=44; 57.1%) will refer OA immediately or later to the specialists. The proportion of continuity of care for OA among physicians with diplomas was more than that found among general practitioner (57.1% vs 34.1%; <.05). Only 30 (39%) of physicians appeared to know the radiographic changes associated with OA. 21 (27.3%) of physicians manage an average of 5-10 patients with OA per week. Almost 3/4 th of the physicians (n=57; 74%) prescribe NSAIDs, and only (n=14; 18.2%) prescribe acetaminophen for OA. Less than 1/5 th of the physicians surveyed (n=12; 15.6%) prescribe herbal medicine for OA. Almost all physicians subscribe to regular training programs about OA. Conclusions: Appropriate attitude with lack of knowledge was found, and practice of our physicians with regards to this disorder appeared inappropriate. More education focusing on the disorder is recommended.
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Affiliation(s)
- Al-Hazmi Ahmad Homoud
- Department of Family and Community Medicine, College of Medicine, AlJouf University, Saudi Arabia
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Cordero-Ampuero J, Darder A, Santillana J, Caloto MT, Nocea G. [Association between arthritis, functional disability and quality of life using a structural equation]. Rev Esp Cir Ortop Traumatol (Engl Ed) 2013; 56:197-204. [PMID: 23594806 DOI: 10.1016/j.recot.2012.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 01/12/2012] [Accepted: 01/24/2012] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES To establish a conceptual model that links arthritis, functional disability in activities of daily living, and quality of life (QoL). METHODS A multicentre, cross-sectional, observation study was performed. The location of the arthritis (presence/absence) was recorded. Disability was measured using the Health Assessment Questionnaire Disability Index and the QoL determined using the EQ-5D-3 Level questionnaire. The relationship between the arthritis, disability, and the QoL was evaluated using the structural equation model (SEM). RESULTS PATIENTS 965 patients with arthritis (mean age=64 years, with 75% females). Arthritis: mean areas affected: 2.8. Areas most frequently affected: knees (67%); lumbar spine (60%) and cervical spine (45%). QoL: The majority of patients did not mention serious problems in the five domains assessed. Disability: «other activities» (mean=1.2); «reach» (mean=1.1) and «walking» (mean=1.0) were the categories that demonstrated greater disability. The SEM showed arthritis, disability and QoL as associated latent variables. Although 92% of the QoL explained the disability, only 5% of the disability was due to the presence/absence of arthritis. The global model that describes arthritis as a cause of disability, and disability was affecting the QoL, had a reasonable goodness of fit (CMIN/DF=5.42; RMR=0.026; RMSEA=0.069). CONCLUSIONS Functional disability can explain the decrease in QoL. In theory, arthritis is closely related with disability and QoL, but the model did not mange to fully explain this link. As statistical techniques required good measurement models to correctly determine relationships, conventional medical records seem to be insufficient for this purpose. Other valid measurements of arthritis are needed to provide tests of its direct effect on disability and QoL.
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Geenen R, Newman S, Bossema ER, Vriezekolk JE, Boelen PA. Psychological interventions for patients with rheumatic diseases and anxiety or depression. Best Pract Res Clin Rheumatol 2013; 26:305-19. [PMID: 22867928 DOI: 10.1016/j.berh.2012.05.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 05/14/2012] [Accepted: 05/21/2012] [Indexed: 11/16/2022]
Abstract
The prevalence of clinical anxiety and clinical depression in rheumatic diseases is about twice the prevalence seen in the general population. At a milder level, the occurrence of psychological distress that does not fulfil diagnostic criteria of anxiety and depression is even higher. Evidence indicates that this high prevalence is multifactorial. Correlational studies suggest that possible factors for anxiety and depression include the suffering accompanying somatic symptoms, functional limitations, pro-inflammatory cytokines, helplessness due to the uncontrollable, unpredictable and progressive nature of the disease, and other factors associated with having a chronic disease. This article reviews the prevalence and diagnosis of anxiety and depression in rheumatic diseases and it examines the contents and the impact of psychological interventions to address these difficulties for patients.
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Affiliation(s)
- Rinie Geenen
- Utrecht University, Department of Clinical and Health Psychology, Utrecht, The Netherlands.
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Lemieux A, Saman DM, Lutfiyya MN. Population-based study of health service deficits in US adults with depression: Does chronic disease co-morbidity and/or rural residency make a difference? Health (London) 2013. [DOI: 10.4236/health.2013.54103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Dowsey MM, Dieppe P, Lohmander S, Castle D, Liew D, Choong PFM. The association between radiographic severity and pre-operative function in patients undergoing primary knee replacement for osteoarthritis. Knee 2012; 19:860-5. [PMID: 22445613 DOI: 10.1016/j.knee.2012.02.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 01/22/2012] [Accepted: 02/19/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To determine the association between radiographic osteoarthritis (OA) and pre-operative function in patients undergoing primary knee replacement. METHODS Single centre study examining pre-operative outcomes in a consecutive series of 525 patients who underwent primary knee replacement for OA between January 2006 and December 2007. Pre-operative data included: demographics, American Society of Anaesthesiologists (ASA) status and OA in the contralateral knee. The International Knee Society (IKS) rating and Short Form-12 (SF-12) were recorded for each patient. Pre-operative radiographs were read by a single observer for Kellgren and Lawrence (K&L) grading and Osteoarthritis Research Society International (OARSI) atlas features. Multiple linear regression was used to assess the strength of associations between radiographic OA severity and function, adjusting for clinically relevant variables. RESULTS Lateral tibiofemoral osteophyte grade was an independent predictor of pre-operative function as determined by the functional sub-scale of the IKS in patients undergoing primary knee replacement (coefficient=2.58, p=0.033). No associations were evident between pre-operative function and modified K&L, joint space narrowing, Ahlbäck attrition and coronal plane deformity. Other statistically significant predictors of poorer pre-operative function included: advancing age, female gender, knee pain and poorer SF-12 mental component summary scores which including osteophyte grade accounted for 24.6% of the variation in functional scores, (r=0.496). CONCLUSION Osteophytes in the lateral compartment of the knee were associated with pre-operative function in patients with advanced knee OA. Further studies are required which examine individual radiographic features specifically in patients with advanced knee OA to determine their relationship to pre-operative pain and function.
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Affiliation(s)
- Michelle M Dowsey
- Department of Orthopaedics and The University of Melbourne Department of Surgery, St. Vincent's Hospital Melbourne, Australia
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Association between arthritis, functional disability, and quality of life. Rev Esp Cir Ortop Traumatol (Engl Ed) 2012. [DOI: 10.1016/j.recote.2012.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Vitality and the course of limitations in activities in osteoarthritis of the hip or knee. BMC Musculoskelet Disord 2011; 12:269. [PMID: 22111943 PMCID: PMC3236012 DOI: 10.1186/1471-2474-12-269] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 11/24/2011] [Indexed: 01/08/2023] Open
Abstract
Background The objective of the study was to determine whether psychological and social factors predict the course of limitations in activities in elderly patients with osteoarthritis of the hip or knee, in addition to established somatic and cognitive risk factors. Methods A longitudinal cohort study with a follow-up period of three years was conducted. Patients (N = 237) with hip or knee osteoarthritis were recruited from rehabilitation centers and hospitals. Body functions, comorbidity, cognitive functioning, limitations in activities and psychological and social factors (mental health, vitality, pain coping and perceived social support) were assessed. Statistical analyses included univariate and multivariate regression analyses. Psychological and social factors were added to a previously developed model with body functions, comorbidity and cognitive functioning. Results In knee OA, low vitality has a negative impact on the course of self-reported and performance-based limitations in activities, after controlling for somatic and cognitive factors. In hip OA, psychological and social factors had no additional contribution to the model. Conclusion Low vitality predicts deterioration of limitations in activities in elderly patients with osteoarthritis of the knee, in addition to established somatic and cognitive risk factors. However, the contribution of vitality is relatively small. Results of this study are relevant for the group of patients with knee or hip OA, attending hospitals and rehabilitation centers.
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Building the rationale and structure for a complex physical therapy intervention within the context of a clinical trial: a multimodal individualized treatment for patients with hip osteoarthritis. Phys Ther 2011; 91:1525-41. [PMID: 21817012 DOI: 10.2522/ptj.20100430] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Evaluating the efficacy of complex interventions such as multimodal, impairment-based physical therapy treatments in randomized controlled trials is essential to inform practice and compare relative benefits of available treatment options. Studies of physical therapy interventions using highly standardized intervention protocols, although methodologically rigorous, do not necessarily reflect "real-world" clinical practice, and in many cases results have been disappointing. Development of a complex intervention that includes multiple treatment modalities and individualized treatment technique selection requires a systematic approach to designing all aspects of the intervention based on theory, evidence, and practical constraints. This perspective article outlines the development of the rationale and structure of a multimodal physical therapy program for painful hip osteoarthritis to be assessed in a clinical trial. The resulting intervention protocol comprises a semi-structured program of exercises and manual therapy, advice, physical activity, and optional prescription of a gait aid that is standardized, yet can be individualized according to physical assessment and radiographic findings. The program is evidence based and reflects contemporary physical therapist practice, while also being reproducible and reportable. This perspective article aims to encourage physical therapy researchers involved in evaluation of complex interventions to better document their own intervention development, as well as the outcomes, thus generating a body of knowledge about the development processes and protocols that is generalizable to the real-world complexity of providing physical therapy to individual patients.
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Safety issues in the development of treatments for osteoarthritis: recommendations of the Safety Considerations Working Group. Osteoarthritis Cartilage 2011; 19:493-9. [PMID: 21396471 DOI: 10.1016/j.joca.2011.02.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 02/04/2011] [Accepted: 02/08/2011] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The symptomatic treatment of osteoarthritis (OA) remains to be improved, as many patients do not respond well to current palliative therapies and/or suffer unacceptable adverse events. Given the unmet need for innovative, effective and well-tolerated therapies, it is important to develop the means to estimate the ongoing safety profile of novel therapeutic agents over short- and longer term use. DESIGN Methods are presented to estimate the number of serious adverse events (SAEs) of interest considered as "acceptable" per 1000 patient-years exposure and to estimate the numbers of patient-years needed in a randomized controlled trial (RCT) to meet objectives. As exposure is increased, more evidence is accrued that the overall risk is within study limits. It is equally important that requirements for delineating the safety of promising new therapies not create barriers that would preclude their development. Therefore, ongoing surveillance of occurrence of SAEs of interest during clinical development is proposed, for example after every incremental 500 patient-years exposure are accrued. RESULTS This paper and others in this special issue focus on identification of safety signals for symptomatic treatments of OA. Much less information is available for agents aimed at slowing/preventing structural progression but it is expected that a higher risk profile might be considered acceptable in the context of more promising benefit. CONCLUSION This paper provides a proposal and supporting data for a comprehensive approach for assessing ongoing safety during clinical development of both palliative and disease-modifying therapies for OA.
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Kim KW, Han JW, Cho HJ, Chang CB, Park JH, Lee JJ, Lee SB, Seong SC, Kim TK. Association between comorbid depression and osteoarthritis symptom severity in patients with knee osteoarthritis. J Bone Joint Surg Am 2011; 93:556-63. [PMID: 21411706 DOI: 10.2106/jbjs.i.01344] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND We sought to investigate the reported association between depression and severity of knee osteoarthritis symptoms stratified by radiographic severity of osteoarthritis and to quantify the contribution made by depression to symptom severity. METHODS Six hundred and sixty elderly Koreans (sixty-five years or older) were evaluated for radiographic severity of knee osteoarthritis on the basis of the Kellgren-Lawrence grading system and also for symptom severity on the basis of the Western Ontario and McMaster Universities Osteoarthritis Index scales. Patient interviews and a questionnaire that made use of a geriatric depression scale were conducted for the purpose of assessing depressive disorders. Regression analyses were performed to assess the relative contributions by radiographic severity and depression severity to Western Ontario and McMaster Universities Osteoarthritis Index scores and to explore any associations between radiographic severity and the presence of a depressive disorder with regard to the risk of symptomatic knee osteoarthritis. Symptomatic knee osteoarthritis was defined as a Western Ontario and McMaster Universities Osteoarthritis Index score of ≥39. RESULTS The presence of a depressive disorder was found to be associated with an increased risk of symptomatic knee osteoarthritis (odds ratio = 5.87 [95% confidence interval, 3.01 to 11.44]). However, the influence of the presence of a depressive disorder was limited to subjects with a radiographic severity of minimal to moderate (Kellgren-Lawrence grade 0 to 3). The presence of a depressive disorder was not associated with the risk of symptomatic knee osteoarthritis in subjects with severe osteoarthritis (Kellgren-Lawrence grade 4). CONCLUSIONS This study indicates that the assessment and management of coexisting depression should be integrated with the assessment and management of knee osteoarthritis, particularly when radiographic changes of osteoarthritis in the knee joint are not severe.
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Affiliation(s)
- Ki Woong Kim
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, South Korea
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Castañeda-Corral G, Jimenez-Andrade JM, Bloom AP, Taylor RN, Mantyh WG, Kaczmarska MJ, Ghilardi JR, Mantyh PW. The majority of myelinated and unmyelinated sensory nerve fibers that innervate bone express the tropomyosin receptor kinase A. Neuroscience 2011; 178:196-207. [PMID: 21277945 DOI: 10.1016/j.neuroscience.2011.01.039] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 01/16/2011] [Accepted: 01/20/2011] [Indexed: 12/13/2022]
Abstract
Although skeletal pain is a leading cause of chronic pain and disability, relatively little is known about the specific populations of nerve fibers that innervate the skeleton. Recent studies have reported that therapies blocking nerve growth factor (NGF) or its cognate receptor, tropomyosin receptor kinase A (TrkA) are efficacious in attenuating skeletal pain. A potential factor to consider when assessing the analgesic efficacy of targeting NGF-TrkA signaling in a pain state is the fraction of NGF-responsive TrkA+ nociceptors that innervate the tissue from which the pain is arising, as this innervation and the analgesic efficacy of targeting NGF-TrkA signaling may vary considerably from tissue to tissue. To explore this in the skeleton, tissue slices and whole mount preparations of the normal, adult mouse femur were analyzed using immunohistochemistry and confocal microscopy. Analysis of these preparations revealed that 80% of the unmyelinated/thinly myelinated sensory nerve fibers that express calcitonin gene-related peptide (CGRP) and innervate the periosteum, mineralized bone and bone marrow also express TrkA. Similarly, the majority of myelinated sensory nerve fibers that express neurofilament 200 kDa (NF200) which innervate the periosteum, mineralized bone and bone marrow also co-express TrkA. In the normal femur, the relative density of CGRP+, NF200+ and TrkA+ sensory nerve fibers per unit volume is: periosteum>bone marrow>mineralized bone>cartilage with the respective relative densities being 100:2:0.1:0. The observation that the majority of sensory nerve fibers innervating the skeleton express TrkA+, may in part explain why therapies that block NGF/TrkA pathway are highly efficacious in attenuating skeletal pain.
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Affiliation(s)
- G Castañeda-Corral
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ 85724, USA
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Capsaicin-sensitive sensory nerve fibers contribute to the generation and maintenance of skeletal fracture pain. Neuroscience 2009; 162:1244-54. [PMID: 19486928 DOI: 10.1016/j.neuroscience.2009.05.065] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 05/21/2009] [Accepted: 05/25/2009] [Indexed: 11/22/2022]
Abstract
Although skeletal pain can have a marked impact on a patient's functional status and quality of life, relatively little is known about the specific populations of peripheral nerve fibers that drive non-malignant bone pain. In the present report, neonatal male Sprague-Dawley rats were treated with capsaicin or vehicle and femoral fracture was produced when the animals were young adults (15-16 weeks old). Capsaicin treatment, but not vehicle, resulted in a significant (>70%) depletion in the density of calcitonin-gene related peptide positive (CGRP(+)) sensory nerve fibers, but not 200 kDa neurofilament H positive (NF200(+)) sensory nerve fibers in the periosteum. The periosteum is a thin, cellular and fibrous tissue that tightly adheres to the outer surface of all but the articulated surface of bone and appears to play a pivotal role in driving fracture pain. In animals treated with capsaicin, but not vehicle, there was a 50% reduction in the severity, but no change in the time course, of fracture-induced skeletal pain-related behaviors as measured by spontaneous flinching, guarding and weight bearing. These results suggest that both capsaicin-sensitive (primarily CGRP(+) C-fibers) and capsaicin-insensitive (primarily NF200(+) A-delta fibers) sensory nerve fibers participate in driving skeletal fracture pain. Skeletal pain can be a significant impediment to functional recovery following trauma-induced fracture, osteoporosis-induced fracture and orthopedic surgery procedures such as knee and hip replacement. Understanding the specific populations of sensory nerve fibers that need to be targeted to inhibit the generation and maintenance of skeletal pain may allow the development of more specific mechanism-based therapies that can effectively attenuate acute and chronic skeletal pain.
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Lindenhovius ALC, Buijze GA, Kloen P, Ring DC. Correspondence between perceived disability and objective physical impairment after elbow trauma. J Bone Joint Surg Am 2008; 90:2090-7. [PMID: 18829905 DOI: 10.2106/jbjs.g.00793] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Substantial differences between disability and impairment are commonplace and puzzling. Subjective (psychosocial) factors may be paramount given that pain is a more important determinant of perceived overall arm-specific disability than is objective elbow impairment. To further evaluate the relationship between impairment and disability, we tested the hypothesis that objective loss of elbow motion predicts perceived elbow-related task-specific disability better than does pain after elbow trauma. METHODS One hundred and fifty-eight patients were evaluated at a median of twenty-six months after a traumatic elbow injury and completed the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire. Predictors of the total DASH score and of the scores for individual DASH items that were expected to be related to elbow function were evaluated with univariate and multivariate analyses. RESULTS Motion accounted for 35% of the variability in the total DASH score, for 11% to 12% of the variability in the responses to questions specific to hand-based activities, and for 24% to 33% of the variability in the scores for tasks depending on elbow motion. Pain accounted for 41% of the variability in the total DASH score and was a better predictor than motion of disability associated with three tasks: opening a tight jar (with pain and motion accounting for 24% and 11% of the variability, respectively), pushing open a door (25% and 12%, respectively), and placing an object overhead (28% and 25%, respectively). None of the multivariate models explained more than 53% of the variability in the DASH scores. CONCLUSIONS Objective physical elbow impairment correlated with self-reported disability with respect to specific tasks, but a large proportion of disability remains unexplained. Further research is needed to better understand the differences between objective impairment and perceived disability.
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Affiliation(s)
- Anneluuk L C Lindenhovius
- Orthopaedic Hand and Upper Extremity Service, Massachusetts General Hospital, Yawkey Center, Boston, MA 02114, USA
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