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Zeng L, Liu Y, Wang Q, Wan H, Meng X, Tu P, Chen H, Luo A, Hu P, Ding X. Botulinum toxin A attenuates osteoarthritis development via inhibiting chondrocyte ferroptosis through SLC7Al1/GPX4 axis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167215. [PMID: 38714267 DOI: 10.1016/j.bbadis.2024.167215] [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: 10/17/2023] [Revised: 04/07/2024] [Accepted: 04/30/2024] [Indexed: 05/09/2024]
Abstract
Osteoarthritis (OA) is a prevalent joint degenerative disease, resulting in a significant societal burden. However, there is currently a lack of effective treatment option available. Previous studies have suggested that Botulinum toxin A (BONT/A), a macromolecular protein extracted from Clostridium Botulinum, may improve the pain and joint function in OA patients, but the mechanism remains elusive. This study was to investigate the impact and potential mechanism of BONT/A on OA in vivo and in vitro experiment. LPS increased the levels of ROS, Fe2+and Fe3+, as well as decreased GSH levels, the ratio of GSH / GSSH and mitochondrial membrane potential. It also enhanced the degeneration of extracellular matrix (ECM) and altered the ferroptosis-related protein expression in chondrocytes. BONT/A rescued LPS-induced decrease in collagen type II (Collagen II) expression and increase in matrix metalloproteinase 13 (MMP13), mitigated LPS-induced cytotoxicity in chondrocytes, abolished the accumulation of ROS and iron, upregulated GSH and the ratio of GSH/ GSSH, improved mitochondrial function, and promoted SLC7A11/GPX4 anti-ferroptosis system activation. Additionally, intra-articular injection of BONT/A inhibited the degradation of cartilage in OA model rats. This chondroprotective effect of BONT/A was reversed by erastin (a classical ferroptosis agonist) and enhanced by liproxstatin-1 (a classic ferroptosis inhibitor). Our research confirms that BONT/A alleviates the OA development by inhibiting the ferroptosis of chondrocytes, which revealed to be a potential therapeutic mechanism for BONT/A treating the OA.
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Affiliation(s)
- Lian Zeng
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanping Liu
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China
| | - Qingsong Wang
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China
| | - Hongmei Wan
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China
| | - Xiran Meng
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China
| | - Panwen Tu
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China
| | - Huaxian Chen
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China
| | - Ailin Luo
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - PengChao Hu
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China.
| | - Xudong Ding
- Department of Rehabilitation Medicine, Clinical Medical Center for Rehabilitation Treatment of Dystonia Disease, Hubei Provincial Clinical Research Center for Parkinson's Disease, Central Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang 44100, China.
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Muffly BT, Ayeni AM, Jones CA, Heo KY, Guild GN, Premkumar A. Periprosthetic Joint Infection Risk After Primary Total Knee Arthroplasty: Are All Preoperative Corticosteroid Injections the Same? J Arthroplasty 2024; 39:1312-1316.e7. [PMID: 37924991 DOI: 10.1016/j.arth.2023.10.053] [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: 07/03/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Previous evidence has demonstrated an increased risk of periprosthetic joint infection (PJI) following primary total knee arthroplasty (TKA) in patients receiving corticosteroid injection (CSI) within 3 months of surgery. The study aimed to determine if PJI risk after TKA varied among different corticosteroid agents. METHODS A total of 85,073 patients undergoing primary TKA from 2009 to 2019 were identified from a large national database. Of these, 1,092 (1.3%) received an ipsilateral, intra-articular CSI within 90 days of TKA. These patients were compared to those not receiving CSI using multivariate logistic regressions following 1:4 propensity score matching, with PJI development as the primary outcome. RESULTS Patients given an injection of any corticosteroid within 90 days of TKA had significantly higher PJI rates compared to controls (1.6 versus 0.41%; P < .001). This finding was driven by patients receiving methylprednisolone acetate (n = 543) or betamethasone (n = 153), with prevalence rates of 1.7 and 2.6%, respectively (P = .003 and P = .01, respectively). No significant increase in the rate of PJI was observed for patients receiving triamcinolone (1.2%; P = .08; n = 342) or dexamethasone (0.0%; P = 1; n = 54) within 90 days preceding TKA. PJI risk for all agents, administered more than 90 days preoperatively normalized to control levels (0.51 versus 0.34%). CONCLUSIONS These results suggest that PJI risk varies with CSI type. In this large database study, only patients given methylprednisolone acetate or betamethasone injections within 90 days of surgery had significantly higher PJI rates compared to controls.
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Affiliation(s)
- Brian T Muffly
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Ayomide M Ayeni
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Corey A Jones
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Kevin Y Heo
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - George N Guild
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Ajay Premkumar
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, Georgia
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Yang Y, Li G, Su Y. Intraarticular botulinum toxin type A versus corticosteroid or hyaluronic acid for painful knee osteoarthritis: A meta-analysis of head-to-head randomized controlled trials. Toxicon 2024; 241:107656. [PMID: 38401692 DOI: 10.1016/j.toxicon.2024.107656] [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: 12/13/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/26/2024]
Abstract
Intraarticular botulinum toxin type A (BTA) has been shown to be effective for painful knee osteoarthritis (KOA), while the efficacy and safety of intraarticular BTA compared to corticosteroid and hyaluronic acid (HA) remains unknown. A meta-analysis was performed to compare. A search was conducted in Medline (PubMed), CENTER (Cochrane Library), Embase (Ovid), Web of Science, Wanfang, and CNKI to find head-to-head randomized controlled trials (RCTs) directly compare the efficacy and safety between intraarticular BTA and intraarticular corticosteroid or HA for patients with painful KOA. The Cochrane Q test and estimation of I2 were used to assess heterogeneity among studies. After incorporating heterogeneity, a random-effects model was employed for data pooling. Overall, six RCTs involving 348 adults with KOA were included. Intraarticular BTA showed similar efficacy with corticosteroid as evidenced by the changes of pain visual analog scale (VAS: -0.35 [-0.97, 0.28]), total Western Ontario McMaster Universities Arthritis Index (WOMAC: 0.28 [-4.13, 4.69]), and WOMAC for pain (0.64 [-0.42, 1.70]), stiffness (-0.02 [-0.54, 0.50]), and function (0.00 [-2.99, 3.00]). Intraarticular BTA was shown to be more effective than HA in improving pain VAS (-1.31 [-1.97, -0.64]) and WOMAC for pain (-4.81 [-8.73, -0.89]), while the influence on WOMAC for knee stiffness (-1.01 [-4.43, 2.41]) and knee function (-1.86 [-6.71, 2.99]) were similar between groups. No serious adverse events were reported. Evidence from pilot RCTs suggests that intraarticular BTA may confer similar efficacy to corticosteroid for KOA, while BTA may be superior to HA for improving knee pain.
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Affiliation(s)
- Yinan Yang
- Department of Rehabilitation and Physiotherapy, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Haigang District, Qinhuangdao, 066000, China.
| | - Guozheng Li
- Department of Rehabilitation and Physiotherapy, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Haigang District, Qinhuangdao, 066000, China
| | - Yuping Su
- Department of Rehabilitation and Physiotherapy, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Haigang District, Qinhuangdao, 066000, China
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Leonardi G, Alito A, Portaro S, Di Matteo B, Respizzi S, Kon E, Massazza G, Sconza C. Intramuscular injections of botulinum toxin for the treatment of upper back myofascial pain syndrome: A systematic review of randomized controlled trials. Eur J Pain 2024; 28:369-381. [PMID: 37950343 DOI: 10.1002/ejp.2198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND AND OBJECTIVE Myofascial pain syndrome (MPS) is a chronic musculoskeletal disorder characterized by the presence of trigger points. Among the treatment options, botulinum toxin injections have been investigated. The aim of this paper was to provide a synthesis of the evidence on intramuscular botulinum toxin injections for upper back MPS. DATABASES AND DATA TREATMENT A systematic review of the literature was performed on the PubMed, Scopus and Cochrane Library, using the following formula: ("botulinum") AND ("musculoskeletal") AND ("upper back pain") OR ("myofascial pain"). RESULTS Ten studies involving 651 patients were included. Patients in the control groups received placebo (saline solution) injections, anaesthetic injections + dry needling or anaesthetic injections. The analysis of the trials revealed modest methodological quality: one "Good quality" study, one "Fair" and the other "Poor". No major complications or serious adverse events were reported. Results provided conflicting evidence and did not demonstrate the superiority of botulinum toxin over comparators. Most of the included trials were characterized by a small sample size, weak power analysis, different clinical scores used and non-comparable follow-up periods. Even if there is no conclusive evidence, the favourable safety profile and the positive results of some secondary endpoints suggest a potentially beneficial action in pain control and quality of life. CONCLUSION The currently available studies show conflicting results. Their overall low methodological quality does not allow for solid evidence of superiority over other comparison treatments. Further insights are needed to properly profile patients who could benefit more from this peculiar injective approach. SIGNIFICANCE The randomized controlled trials included in this review compared using botulinum toxin to treat upper back MPS with placebo or active treatments (e.g., dry needling or anaesthetics) showing mixed results overall. Despite the lack of clear evidence of superiority, our study suggests that the use of botulinum toxin should not be discouraged. Its safety profile and encouraging results in pain control, motor recovery and disability reduction make it an interesting treatment, particularly in the subset of patients with moderate to severe chronic pain and active trigger points. To support the safety and efficacy of botulinum toxin, further high-quality studies are needed.
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Affiliation(s)
- G Leonardi
- Department of Physical and Rehabilitation Medicine, University Hospital "G. Martino", Messina, Italy
| | - A Alito
- Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, Messina, Italy
| | - S Portaro
- Department of Physical and Rehabilitation Medicine, University Hospital "G. Martino", Messina, Italy
| | - B Di Matteo
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - S Respizzi
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - E Kon
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - G Massazza
- Division of Physical Medicine and Rehabilitation, Department of Surgical Sciences, University of Turin, Turin, Italy
| | - C Sconza
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
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Silva MDC, Woodward AP, Fearon AM, Perriman DM, Spencer TJ, Couldrick JM, Scarvell JM. Minimal clinically important change of knee flexion in people with knee osteoarthritis after non-surgical interventions using a meta-analytical approach. Syst Rev 2024; 13:50. [PMID: 38303000 PMCID: PMC10832130 DOI: 10.1186/s13643-023-02393-0] [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: 06/23/2023] [Accepted: 11/17/2023] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Minimal clinically important change (MCIC) represents the minimum patient-perceived improvement in an outcome after treatment, in an individual or within a group over time. This study aimed to determine MCIC of knee flexion in people with knee OA after non-surgical interventions using a meta-analytical approach. METHODS Four databases (MEDLINE, Cochrane, Web of Science and CINAHL) were searched for studies of randomised clinical trials of non-surgical interventions with intervention duration of ≤ 3 months that reported change in (Δ) (mean change between baseline and immediately after the intervention) knee flexion with Δ pain or Δ function measured using tools that have established MCIC values. The risk of bias in the included studies was assessed using version 2 of the Cochrane risk-of-bias tool for randomised trials (RoB 2). Bayesian meta-analytic models were used to determine relationships between Δ flexion with Δ pain and Δ function after non-surgical interventions and MCIC of knee flexion. RESULTS Seventy-two studies (k = 72, n = 5174) were eligible. Meta-analyses included 140 intervention arms (k = 61, n = 4516) that reported Δ flexion with Δ pain using the visual analog scale (pain-VAS) and Δ function using the Western Ontario and McMaster Universities Osteoarthritis Index function subscale (function-WOMAC). Linear relationships between Δ pain at rest-VAS (0-100 mm) with Δ flexion were - 0.29 (- 0.44; - 0.15) (β: posterior median (CrI: credible interval)). Relationships between Δ pain during activity VAS and Δ flexion were - 0.29 (- 0.41, - 0.18), and Δ pain-general VAS and Δ flexion were - 0.33 (- 0.42, - 0.23). The relationship between Δ function-WOMAC (out of 100) and Δ flexion was - 0.15 (- 0.25, - 0.07). Increased Δ flexion was associated with decreased Δ pain-VAS and increased Δ function-WOMAC. The point estimates for MCIC of knee flexion ranged from 3.8 to 6.4°. CONCLUSIONS The estimated knee flexion MCIC values from this study are the first to be reported using a novel meta-analytical method. The novel meta-analytical method may be useful to estimate MCIC for other measures where anchor questions are problematic. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42022323927.
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Affiliation(s)
- M Denika C Silva
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia.
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia.
- Department of Physiotherapy, General Sir John Kotelawala Defence University, Werahera, Colombo, Sri Lanka.
| | - Andrew P Woodward
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia
| | - Angela M Fearon
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
- Research Institute for Sport and Exercise, University of Canberra, Canberra, Australia
| | - Diana M Perriman
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
- College of Medicine and Health Sciences, Australian National University, Canberra, Australia
| | - Trevor J Spencer
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
- Research Institute for Sport and Exercise, University of Canberra, Canberra, Australia
| | - Jacqui M Couldrick
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
| | - Jennie M Scarvell
- Faculty of Health, University of Canberra, Bruce, ACT, 2617, Australia
- Trauma and Orthopaedic Research Unit, Canberra Hospital, Canberra, Australia
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Bensa A, Albanese J, Boffa A, Previtali D, Filardo G. Intra-articular corticosteroid injections provide a clinically relevant benefit compared to placebo only at short-term follow-up in patients with knee osteoarthritis: A systematic review and meta-analysis. Knee Surg Sports Traumatol Arthrosc 2024; 32:311-322. [PMID: 38294103 DOI: 10.1002/ksa.12057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 02/01/2024]
Abstract
PURPOSE To quantify the clinical relevance of intra-articular corticosteroid effects compared to placebo for the injective treatment of knee osteoarthritis (OA). METHODS The PubMed, Cochrane Library and Web of Science databases were searched on May 3, 2023. This study was conducted in accordance with the PRISMA guidelines. The inclusion criteria were randomized controlled trials (RCTs), published in English, with no time limitation regarding publication date, comparing intra-articular corticosteroids and placebo injections for knee OA. The effects were quantified at short- (≤6 weeks), mid- (>6 weeks and ≤3 months), and long-term (≥6 months) follow-ups. The minimal clinically important difference (MCID) for the outcomes (visual analogue scale for pain - VAS: 1.4, Western Ontario and McMaster University Osteoarthritis Index - WOMAC: 9) was used to interpret the clinical improvement provided by intra-articular corticosteroid injections compared to placebo. The quality of each article was assessed using the Cochrane RoB 2 tool and the GRADE guidelines. RESULTS Among the 1030 articles retrieved, 11 RCTs (842 patients) were included. A comparison of the two groups revealed statistically significant differences in the improvement of VAS and WOMAC scores in terms of the mean difference (MD); this difference was in favour of corticosteroids at short-term (p < 0.001, MD = -1.6 and p < 0.001, MD = -9.9, respectively) and mid-term follow-ups (p = 0.001, mean MD = -1.3 and p = 0.005, MD = -4.9, respectively). No difference was observed at the long-term follow-up. The MDs between the improvements in the two groups reached the MCID values for the VAS and WOMAC only at the short-term follow-up. The RoB 2 tool and the GRADE evaluations showed the presence of risk of bias and limited quality of evidence. CONCLUSION This systematic review and meta-analysis demonstrated that intra-articular corticosteroid injections offer clinically perceivable pain relief and functional improvement higher than the placebo effect only at short-term follow-up in patients affected by knee OA, with benefits losing clinical relevance already after 6 weeks. These results, together with the low number and the limited quality of the RCTs comparing this treatment with placebo, question the indication for the use of corticosteroid injections in clinical practice for the treatment of knee OA. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Alessandro Bensa
- Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
| | - Jacopo Albanese
- Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
| | - Angelo Boffa
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Davide Previtali
- Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
| | - Giuseppe Filardo
- Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
- Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
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Malik KN, Camp N, Chan J, Ballard M. Interventional Techniques for the Management of Knee Osteoarthritis: A Literature Review. Cureus 2023; 15:e47133. [PMID: 38022320 PMCID: PMC10650933 DOI: 10.7759/cureus.47133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2023] [Indexed: 12/01/2023] Open
Abstract
Osteoarthritis of the knee is a prevalent condition that causes pain, discomfort, and disability that can severely impact the quality of life. This literature review aims to review the various interventional pain management techniques available to treat knee osteoarthritis. It analyzes the efficacy of various interventions such as intra-articular corticosteroids, prolotherapy, viscosupplementation, platelet-rich plasma, and genicular nerve blocks with radiofrequency ablation or cryoneurolysis. We searched databases for studies published in the past 20 years. A total of 37 articles were included. The literature supports the idea that a comprehensive treatment plan consisting of the various aforementioned techniques can provide relief for patients while delaying or avoiding joint replacement surgery.
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Affiliation(s)
- Kashif N Malik
- Physical Medicine and Rehabilitation, Casa Colina Hospital, Pomona, USA
| | - Nathan Camp
- Physical Medicine and Rehabilitation, Casa Colina Hospital, Pomona, USA
| | - Justin Chan
- Pain Management, Western University of Health Sciences, Pomona, USA
| | - Matthew Ballard
- Physical Medicine and Rehabilitation, Casa Colina Hospital, Pomona, USA
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Poenaru D, Sandulescu MI, Cinteza D. Pain Modulation in Chronic Musculoskeletal Disorders: Botulinum Toxin, a Descriptive Analysis. Biomedicines 2023; 11:1888. [PMID: 37509527 PMCID: PMC10376837 DOI: 10.3390/biomedicines11071888] [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] [Received: 06/02/2023] [Revised: 06/25/2023] [Accepted: 07/01/2023] [Indexed: 07/30/2023] Open
Abstract
Botulinum neurotoxin (BoNT), a product of Clostridium botulinum, reversibly inhibits the presynaptic release of the neurotransmitter acetylcholine at the neuromuscular junction. In addition, BoNT blocks the transmission of other substances involved in pain perception and, together with a soft-tissue anti-inflammatory effect, may play a role in analgesia. When first-line treatment fails, second-line therapies might include BoNT. Studies on chronic and recurrent pain using different mechanisms offer heterogenous results that must be validated and standardized. Plantar fasciitis, severe knee osteoarthritis, painful knee and hip arthroplasty, antalgic muscular contractures, and neuropathic and myofascial pain syndromes may benefit from the administration of BoNT. Research on this topic has revealed the main musculoskeletal conditions that can benefit from BoNT, stressing the effects, modalities of administration, doses, and schedule.
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Affiliation(s)
- Daniela Poenaru
- Rehabilitation Department 1, Carol Davila University of Medicine and Pharmacy, 4192910 Bucharest, Romania
| | - Miruna Ioana Sandulescu
- Doctoral School, Carol Davila University of Medicine and Pharmacy, 4192910 Bucharest, Romania
| | - Delia Cinteza
- Rehabilitation Department 1, Carol Davila University of Medicine and Pharmacy, 4192910 Bucharest, Romania
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Béret M, Barry F, Garcia-Fernandez MJ, Chijcheapaza-Flores H, Blanchemain N, Chai F, Nicot R. Efficacy of Intra-Articular Injection of Botulinum Toxin Type A (IncobotulinumtoxinA) in Temporomandibular Joint Osteoarthritis: A Three-Arm Controlled Trial in Rats. Toxins (Basel) 2023; 15:toxins15040261. [PMID: 37104199 PMCID: PMC10142654 DOI: 10.3390/toxins15040261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
Temporomandibular disorders (TMD) are complex pathologies responsible for chronic orofacial pain. Intramuscular injection of botulinum toxin A (BoNT/A) has shown effectiveness in knee and shoulder osteoarthritis, as well as in some TMDs such as masticatory myofascial pain, but its use remains controversial. This study aimed to evaluate the effect of intra-articular BoNT/A injection in an animal model of temporomandibular joint osteoarthritis. A rat model of temporomandibular osteoarthritis was used to compare the effects of intra-articular injection of BoNT/A, placebo (saline), and hyaluronic acid (HA). Efficacy was compared by pain assessment (head withdrawal test), histological analysis, and imaging performed in each group at different time points until day 30. Compared with the rats receiving placebo, those receiving intra-articular BoNT/A and HA had a significant decrease in pain at day 14. The analgesic effect of BoNT/A was evident as early as day 7, and lasted until day 21. Histological and radiographic analyses showed decrease in joint inflammation in the BoNT/A and HA groups. The osteoarthritis histological score at day 30 was significantly lower in the BoNT/A group than in the other two groups (p = 0.016). Intra-articular injection of BoNT/A appeared to reduce pain and inflammation in experimentally induced temporomandibular osteoarthritis in rats.
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Affiliation(s)
- Marie Béret
- Univ. Lille, INSERM, U1008-Advanced Drug Delivery Systems, F59000 Lille, France
| | - Florent Barry
- Univ. Lille, CHU Lille, INSERM, Department of Oral and Maxillofacial Surgery, U1008-Advanced Drug Delivery Systems, F59000 Lille, France
| | | | | | - Nicolas Blanchemain
- Univ. Lille, INSERM, U1008-Advanced Drug Delivery Systems, F59000 Lille, France
| | - Feng Chai
- Univ. Lille, INSERM, U1008-Advanced Drug Delivery Systems, F59000 Lille, France
| | - Romain Nicot
- Univ. Lille, CHU Lille, INSERM, Department of Oral and Maxillofacial Surgery, U1008-Advanced Drug Delivery Systems, F59000 Lille, France
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10
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Wang C, Zhao J, Gao F, Jia M, Hu L, Gao C. The efficacy and safety of intra-articular botulinum toxin type A injection for knee osteoarthritis: A meta-analysis of randomized controlled trials. Toxicon 2023; 224:107026. [PMID: 36640812 DOI: 10.1016/j.toxicon.2023.107026] [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: 11/12/2022] [Revised: 12/24/2022] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
The purpose of this study was to investigate the efficacy and safety of intra-articular Botulinum Toxin type A (BTA) injection in the management of patients with knee osteoarthritis (KOA). The literature retrieval was conducted based on PRISMA guidelines. Databases including Pubmed, Web of science, EMBASE, and Cochrane Library were searched to identify RCTs that comparing the effects of intra-articular BTA injection with control interventions on patients with KOA. The primary outcomes involved pain and function improvements as well as the occurrence of adverse events. Seven RCTs comprising 548 participants were included in this meta-analysis. Compared with the control group, BTA injection exhibited greater pain reduction at 4 weeks posttreatment (SMD = -0.86, 95% CI [-1.52, -0.19], p = 0.011), but not 8-24 weeks posttreatment (wk 8, SMD = -0.53, 95% CI [-1.21, 0.15], p = 0.127; wk 12, SMD = -0.34, 95% CI [-0.73, 0.04], p = 0.081; wk 24, SMD = -0.65, 95% CI [-1.52, 0.22], p = 0.144). Additionally, no differences were found between BTA injection versus control intervention on functional improvement at all time points assessed (wk 4, WMD = -5.16, 95% CI [-12.31, 2.00], p = 0.158; wk 8, WMD = -0.98, 95% CI [-5.66, 3.71], p = 0.683; wk 12, WMD = -2.52, 95% CI [-7.54, 2.50], p = 0.325); wk 24, WMD = -3.66, 95% CI [-14.09, 6.76], p = 0.491). There was no significant difference in adverse event rate between the BTA and control group (OR = 0.88, 95% CI [0.24, 3.18], p = 0.843). This meta-analysis suggests that intra-articular BTA injection could be an efficious and safe strategy for analgesic treatment of KOA. However, evidence is limited due to the small number and heterogeneity of included studies, this urges further and stronger trials to confirm our findings.
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Affiliation(s)
- Chen Wang
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jinpeng Zhao
- Department of Cardiothoracic Surgery, Yantai Municipal Laiyang Central Hospital, Yantai, Shandong, China
| | - Fang Gao
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Min Jia
- Department of Rehabilitation Medicine, Jinan Municipal Hospital of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Luoman Hu
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Chengfei Gao
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
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Sconza C, Leonardi G, Carfì C, Kon E, Respizzi S, Scaturro D, Letizia Mauro G, Massazza G, Di Matteo B. Intra-Articular Injection of Botulinum Toxin for the Treatment of Knee Osteoarthritis: A Systematic Review of Randomized Controlled Trials. Int J Mol Sci 2023; 24:ijms24021486. [PMID: 36674999 PMCID: PMC9863806 DOI: 10.3390/ijms24021486] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/18/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
The purpose of the present paper was to review the available evidence on intra-articular botulinum toxin (BTX) injection in the treatment of knee osteoarthritis and to compare it to other conservative treatment options. A systematic review of the literature was performed on the PubMed, Scopus, Cochrane Library, Web of Science, Pedro and Research Gate databases with the following inclusion criteria: (1) randomized controlled trials (RCTs), (2) written in the English language, and (3) published on indexed journals in the last 20 years (2001-2021) dealing with the use of BTX intra-articular injection for the treatment of knee OA. The risk of bias was assessed using the Cochrane Risk of Bias tool for RCTs. Nine studies involving 811 patients in total were included. Patients in the control groups received different treatments: conventional physiotherapy, hyaluronic acid injection or prolotherapy or a combination thereof in 5 studies, steroid infiltrative therapy (triamcinolone) in 1 study, placebo in 2, and local anesthetic treatment in 1 study. Looking at the quality of the available literature, two of the included studies reached "Good quality" standard, three were ranked as "Fair", and the rest were considered "Poor". No major complications or serious adverse events were reported following intra-articular BTX, which provided encouraging pain relief, improved motor function, and quality of life. Based on the available data, no clear indication emerged from the comparison of BTX with other established treatments for knee OA. The analysis of the available RCTs on BTX intra-articular injection for the treatment of knee OA revealed modest methodological quality. However, based on the data retrieved, botulinum toxin has been proven to provide good short-term outcomes, especially in patients with pain sensitization, by modulating neurotransmitter release, peripheral nociceptive transduction, and acting on the control of chronic pain from central sensitization.
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Affiliation(s)
- Cristiano Sconza
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Giulia Leonardi
- U.O.C. of Physical and Rehabilitation Medicine and Sports Medicine, Policlinico Universitario “G. Martino”, 98124 Messina, Italy
| | - Carla Carfì
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Elizaveta Kon
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
- Correspondence: ; Tel.: +39-028-224-5425; Fax: +39-028-224-4600
| | - Stefano Respizzi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Dalila Scaturro
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, Via del Vespro, 129, 90127 Palermo, Italy
| | - Giulia Letizia Mauro
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, Via del Vespro, 129, 90127 Palermo, Italy
| | - Giuseppe Massazza
- Division of Physical Medicine and Rehabilitation, Department of Surgical Sciences, University of Turin, 10124 Turin, Italy
| | - Berardo Di Matteo
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
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12
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Quaranta M, Riccio I, Oliva F, Maffulli N. Osteoarthritis of the Knee in Middle-age Athletes: Many Measures are Practiced, but Lack Sound Scientific Evidence. Sports Med Arthrosc Rev 2022; 30:102-110. [PMID: 35533062 DOI: 10.1097/jsa.0000000000000341] [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: 11/25/2022]
Abstract
Osteoarthritis of the knee generally affects individuals from the fifth decade, the typical age of middle-age athletes. In the early stages, management is conservative and multidisciplinary. It is advisable to avoid sports with high risk of trauma, but it is important that patients continue to be physically active. Conservative management offers several options; however, it is unclear which ones are really useful. This narrative review briefly reports the conservative options for which there is no evidence of effectiveness, or there is only evidence of short-term effectiveness.
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Affiliation(s)
- Marco Quaranta
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Baronissi
- Clinica Ortopedica, Ospedale San Giovanni di Dio e Ruggi D'Aragona, Salerno, Italy
| | - Ivano Riccio
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Baronissi
- Clinica Ortopedica, Ospedale San Giovanni di Dio e Ruggi D'Aragona, Salerno, Italy
| | - Francesco Oliva
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Baronissi
- Clinica Ortopedica, Ospedale San Giovanni di Dio e Ruggi D'Aragona, Salerno, Italy
| | - Nicola Maffulli
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Baronissi
- Clinica Ortopedica, Ospedale San Giovanni di Dio e Ruggi D'Aragona, Salerno, Italy
- Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, Queen Mary University of London, London
- Faculty of Medicine, School of Pharmacy and Bioengineering, Guy Hilton Research Centre, Keele University, Stoke-on-Trent, England
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13
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Oehler B, Périer C, Martin V, Fisher A, Lezmi S, Kalinichev M, McMahon SB. Evaluation of Recombinant Botulinum Neurotoxin Type A1 Efficacy in Peripheral Inflammatory Pain in Mice. Front Mol Neurosci 2022; 15:909835. [PMID: 35694440 PMCID: PMC9179158 DOI: 10.3389/fnmol.2022.909835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
Well-established efficacy of botulinum neurotoxin type A (BoNT/A) in aesthetic dermatology and neuromuscular hyperactivity disorders relies on canonical interruption of acetylcholine neurotransmission at the neuromuscular junction at the site of the injection. The mechanisms and the site of activity of BoNT/A in pain, on the other hand, remain elusive. Here, we explored analgesic activity of recombinant BoNT/A1 (rBoNT/A1; IPN10260) in a mouse model of inflammatory pain to investigate the potential role of peripheral sensory afferents in this activity. After confirming analgesic efficacy of rBoNT/A1 on CFA-induced mechanical hypersensitivity in C57Bl6J mice, we used GCaMP6s to perform in vivo calcium imaging in the ipsilateral dorsal root ganglion (DRG) neurons in rBoNT/A1 vs. vehicle-treated mice at baseline and following administration of a range of mechanical and thermal stimuli. Additionally, immunohisochemical studies were performed to detect cleaved SNAP25 in the skin, DRGs and the spinal cord. Injection of CFA resulted in reduced mechanical sensitivity threshold and increased calcium fluctuations in the DRG neurons. While rBoNT/A1 reduced mechanical hypersensitivity, calcium fluctuations in the DRG of rBoNT/A1- and vehicle-treated animals were similar. Cleaved SNAP25 was largely absent in the skin and the DRG but present in the lumbar spinal cord of rBoNT/A1-treated animals. Taken together, rBoNT/A1 ameliorates mechanical hypersensitivity related to inflammation, while the signal transmission from the peripheral sensory afferents to the DRG remained unchanged. This strengthens the possibility that spinal, rather than peripheral, mechanisms play a role in the mediation of analgesic efficacy of BoNT/A in inflammatory pain.
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Affiliation(s)
- Beatrice Oehler
- Wolfson Center of Age-Related Diseases, IoPPN, Health and Life Science, King’s College London, London, United Kingdom
- Department of Anaesthesiology, Heidelberg University Hospital, Heidelberg, Germany
- *Correspondence: Beatrice Oehler
| | | | | | - Amy Fisher
- Transpharmation Ltd., London, United Kingdom
| | | | | | - Stephen B. McMahon
- Wolfson Center of Age-Related Diseases, IoPPN, Health and Life Science, King’s College London, London, United Kingdom
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Li X, Ye Y, Wang L, Zhou W, Chu X, Li T. Botulinum toxin type a combined with transcranial direct current stimulation reverses the chronic pain induced by osteoarthritis in rats. Toxicon 2022; 212:42-48. [DOI: 10.1016/j.toxicon.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 11/28/2022]
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15
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Yang H, Wang L, Chu X, Shi X, Li X, Li T. BoNT/A alleviates neuropathic pain in osteoarthritis by down-regulating the expression of P2X4R in spinal microglia. Toxicon 2021; 206:55-63. [PMID: 34954133 DOI: 10.1016/j.toxicon.2021.12.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 01/25/2023]
Abstract
Neuropathic pain in osteoarthritis is one of the reasons why the pain is difficult to treat, and P2X4R plays an important role in neuropathic pain. In addition, BoNT/A has been proven to have analgesic effects on both neuropathic pain and osteoarthritis, but its exact mechanism is still unknown. This study aims to investigate the relationship between the analgesic effect of BoNT/A on osteoarthritis and the expression of P2X4R in spinal cord microglia. The analgesic effect was compared between BoNT/A and compound betamethasone. Western blot analysis was used to examine the expression of P2X4R and BDNF proteins in the spinal cord. Immunohistochemistry was used to determine the cellular location of P2X4R. Mechanical allodynia and weight asymmetry were identified using the hind paw withdrawal threshold and weight bearing test. The results showed that intra-articular injection of MIA induced persistent mechanical allodynia and weight asymmetry in rats. Both BoNT/A and betamethasone could relieve pain behavior in rats, but BoNT/A had a more obvious effect and lasted longer. Furthermore, BoNT/A could reverse the MIA-induced overexpression of BDNF and P2X4R in the spinal dorsal horn. To sum up, BoNT/A is more effective than betamethasone in relieving MIA-induced osteoarthritis pain in rats, and its analgesic effect may be related to the regulation of P2X4R-mediated BDNF release in spinal microglia and the relief of neuropathic pain in osteoarthritis.
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Affiliation(s)
- Hui Yang
- Department of Rehabilitation Medicine, Huzhou Central Hospital, Affiliated Central Hospital of Huzhou University, Huzhou Hospital of Zhejiang University, Huzhou, PR China
| | - Lin Wang
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, Province, China
| | - Xiao Chu
- Department of Pharmacy of Qingdao Municipal Hospital, Qingdao, Shandong Province, China
| | - Xiaojuan Shi
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, Province, China
| | - Xinhe Li
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, Province, China
| | - Tieshan Li
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, Province, China.
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Abstract
Knee osteoarthritis is a degenerative arthritis that mainly affects older adults. Over time, osteoarthritis can result in significant and sustained discomfort, pain, and disability. Current treatment focuses on the alleviation of pain and functional impairment. While arthroplasty is the definitive management option, it subjects patients to surgical complications, and the possibility of surgical revisions. In addition, many patients are not surgical candidates. Instead, pharmacological therapy is recommended first-line for most patients. On top of pharmacological therapy, there are a range of non-operative procedural options available. However, leading professional guidelines vary in their recommendations for these agents. Therefore, we present a review of recent randomized controlled trials and meta-analyses on injectable corticosteroids, hyaluronic acid (HA), platelet-rich plasma (PRP), mesenchymal stem cell injections, and ozone therapy. The preliminary data reveal the strongest evidence in favour of corticosteroid injections, although there are promising findings regarding the long-term efficacy of HA and PRP.
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17
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Comparison of Minimally Invasive Procedures to Treat Knee Pain Secondary to Osteoarthritis: A Systematic Review and Meta-Analysis. J Vasc Interv Radiol 2021; 33:238-248.e4. [PMID: 34822993 DOI: 10.1016/j.jvir.2021.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 11/01/2021] [Accepted: 11/07/2021] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To review and indirectly compare the outcomes of minimally invasive therapies for the treatment of lower urinary tract symptoms secondary to benign prostatic hyperplasia. MATERIALS AND METHODS A literature search via Medline and Cochrane Central databases was completed for randomized control studies published between January 2000 to April 2020 for the following therapies: Rezum, Urolift, Aquablation, and prostate artery embolization (PAE). Data on the following variables were included: international Prostate Symptom Score (IPSS), maximum urinary flow rate (Qmax), quality of life (QoL), and post-void residual (PVR). Standard mean differences between treatments were compared through a meta-analysis using transurethral resection of the prostate (TURP) to assess differences in treatment effect. RESULTS No significant difference in outcomes between therapies were noted for IPSS at the 3-, 6-, and 12-month follow-ups. Although outcomes for rezum were only available out to 3 months, there were no consistently significant differences in outcomes when comparing Aquablation vs PAE vs Rezum. TURP PVR was significantly better than Urolift at 3-, 6-, and 12 months. No significant differences in minor or major AEs were noted. CONCLUSION Although significant differences in outcomes were limited, aquablation and PAE were the most durable at 12 months. PAE has been well studied on multiple randomized control trials with minimal adverse events while aquablation has limited high quality data and has been associated with bleeding-related complications.
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Rezasoltani Z, Dadarkhah A, Tabatabaee SM, Abdorrazaghi F, Kazempour Mofrad M, Kazempour Mofrad R. Therapeutic Effects of Intra-articular Botulinum Neurotoxin Versus Physical Therapy in Knee Osteoarthritis. Anesth Pain Med 2021; 11:e112789. [PMID: 34540630 PMCID: PMC8438713 DOI: 10.5812/aapm.112789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/10/2021] [Accepted: 05/20/2021] [Indexed: 12/27/2022] Open
Abstract
Background Knee osteoarthritis (KOA) is the most common cause of chronic knee pain, and disability and different modalities have been used to improve pain and function. Botulinum toxin intra-articular injection is proposed to manage resistant joint pains. Objectives This study was carried out to compare therapeutic effects of intra-articular botulinum neurotoxin (BTX) versus physical therapy (PT) in KOA. Methods In this single-blind randomized clinical trial, patients with KOA attending to Imam-Reza Hospital, Tehran, Iran, from June 2018 to March 2019 were enrolled. Patients who met the inclusion criteria were randomly divided into BTX receiving a single intra-articular dose of 100 units (250 units from disport brand) and PT groups. The study was described for patients, and informed consent forms were received. For assessment of the pain and related severity, the VAS score and KOOS scales were used. Post-intervention assessment was done 1, 3, and 6 months after the intervention. The level of significance was set at α = 0.05. All data analyses were performed with SPSS version 26 for windows. Results In this study, 50 patients were randomly divided into BTX and PT groups. All patients completed the study, and there was no loss to follow-up. There was no significant difference between demographic data of the two groups, including age and BMI. The VAS score was similar in the two groups at the beginning. KOOS subscales were not significantly different, but the quality of life was better in the BTX than the PT group (86.2 ± 15 vs. 72.1 ± 11.5, P < 0.001). One month after the intervention, all KOOS subscales were improved in the BTX group in comparison to the PT group (P < 0.001). This difference was statistically significant in the 3rd (P < 0.001 in all comparisons except Sport/Rec subscale in which P = 0.02) and 6th months (P < 0.001) after the intervention, and the improvement in all KOOS subscales and VAS score were higher in the BTX group than the PT group. The trend of KOOS subscales and VAS score was improved over time in the BTX (P < 0.001 in all tests), but the PT group showed no improvement (P > 0.05) except for Sport/Rec and VAS score (P < 0.001). Conclusions Totally, it is concluded that the use of BTX can reduce pain and improve the function and quality of life in patients with KOA.
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Affiliation(s)
- Zahra Rezasoltani
- Clinical Biomechanics and Ergonomics Research Center, Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Aja University of Medical Sciences, Tehran, Iran
| | - Afsaneh Dadarkhah
- Clinical Biomechanics and Ergonomics Research Center, Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Aja University of Medical Sciences, Tehran, Iran
- Corresponding Author: Clinical Biomechanics and Ergonomics Research Center, Department of Physical Medicine and Rehabilitation, Emam Reza Hospital, Aja University of Medical Sciences, 1411718541, Tehran, Iran.
| | - Seyed Morteza Tabatabaee
- Clinical Biomechanics and Ergonomics Research Center, Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Aja University of Medical Sciences, Tehran, Iran
| | - Fateme Abdorrazaghi
- Physical Medicine and Rehabilitation Specialist, Clinical Biomechanics and Ergonomics Research Center, Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Aja University of Medical Sciences, Tehran, Iran
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Alves JC, Santos A, Jorge P, Lavrador C, Carreira LM. Intraarticular triamcinolone hexacetonide, stanozolol, Hylan G-F 20 and platelet concentrate in a naturally occurring canine osteoarthritis model. Sci Rep 2021; 11:3118. [PMID: 33542412 PMCID: PMC7862601 DOI: 10.1038/s41598-021-82795-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 01/25/2021] [Indexed: 01/30/2023] Open
Abstract
Osteoarthritis (OA) is a disease transversal to all mammals, a source of chronic pain and disability, a huge burden to societies, with a significant toll in healthcare cost, while reducing productivity and quality of life. The dog is considered a useful model for the translational study of the disease, closely matching human OA, with the advantage of a faster disease progression while maintaining the same life stages. In a prospective, longitudinal, double-blinded, negative controlled study, one hundred (N = 100) hip joints were selected and randomly assigned to five groups: control group (CG, n = 20, receiving a saline injection), triamcinolone hexacetonide group (THG, n = 20), platelet concentrate group (PCG, n = 20), stanozolol group (SG, n = 20) and hylan G-F 20 group (HG). Evaluations were conducted on days 0 (T0, treatment day), 8, 15, 30, 60, 90, 120, 150 and 180 days post-treatment, consisting of weight distribution analysis and data from four Clinical Metrology Instruments (CMI). Kaplan-Meier estimators were generated and compared with the Breslow test. Cox proportional hazard regression analysis was used to investigate the influence of variables of interest on treatment survival. All results were analyzed with IBM SPSS Statistics version 20 and a significance level of p < 0.05 was set. Sample included joints of 100 pelvic limbs (of patients with a mean age of 6.5 ± 2.4 years and body weight of 26.7 ± 5.2 kg. Joints were graded as mild (n = 70), moderate (n = 20) and severe (n = 10) OA. No differences were found between groups at T0. Kaplan-Meier analysis showed that all treatments produced longer periods with better results in the various evaluations compared to CG. Patients in HG and PCG took longer to return to baseline values and scores. A higher impact on pain interference was observed in THG, with a 95% improvement over CG. PCG and HG experienced 57-81% improvements in functional evaluation and impairments due to OA, and may be a better options for these cases. This study documented the efficacy of several approaches to relieve OA clinical signs. These approaches varied in intensity and duration. HG and PCG where the groups were more significant improvements were observed throughout the follow-up periods, with lower variation in results.
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Affiliation(s)
- J C Alves
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Rua Presidente Arriaga, 9, 1200-771, Lisbon, Portugal.
- MED - Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554, Évora, Portugal.
| | - A Santos
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Rua Presidente Arriaga, 9, 1200-771, Lisbon, Portugal
| | - P Jorge
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Rua Presidente Arriaga, 9, 1200-771, Lisbon, Portugal
| | - C Lavrador
- MED - Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554, Évora, Portugal
| | - L Miguel Carreira
- Faculty of Veterinary Medicine, University of Lisbon (FMV/ULisboa), Lisbon, Portugal
- Interdisciplinary Centre for Research in Animal Health (CIISA) - University of Lisbon, (FMV/ULisboa), Lisbon, Portugal
- Anjos of Assis Veterinary Medicine Centre (CMVAA), Barreiro, Portugal
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Alves JC, Santos A, Jorge P, Lavrador C, Carreira LM. The intra-articular administration of triamcinolone hexacetonide in the treatment of osteoarthritis. Its effects in a naturally occurring canine osteoarthritis model. PLoS One 2021; 16:e0245553. [PMID: 33471857 PMCID: PMC7816979 DOI: 10.1371/journal.pone.0245553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/03/2021] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE To evaluate the effect of an intra-articular (IA) administration of triamcinolone hexacetonide, compared with saline. PATIENTS AND METHODS Forty (N = 40) hip joints were randomly assigned to a treatment group (THG, n = 20, receiving IA triamcinolone hexacetonide) and a control group (CG, n = 20, receiving IA saline). On treatment day (T0), and at 8, 15, 30, 90 and 180 days post-treatment, weight distribution, joint range of motion, thigh girth, digital thermography, radiographic signs, synovial fluid interleukin-1 and C-reactive protein levels were evaluated. Data from four Clinical Metrology Instruments was also gathered. Results were compared Repeated Measures ANOVA, with a Huynh-Feldt correction, Paired Samples T-Test or Wilcoxon Signed Ranks Test. A Kaplan-Meier test was performed to compare both groups, with p<0.05. RESULTS Joints were graded as mild (65%), moderate (20%) and severe (15%). Patients of both sexes, with a mean age of 6.5±2.4 years and bodyweight of 26.7±5.2kg, were included. No differences were found between groups at T0. Comparing THG to CG, weight distribution showed significant improvements in THG from 8 (p = 0.05) up to 90 days (p = 0.01). THG showed lower values during thermographic evaluation in the Lt view (p<0.01). Pain and function scores also improved from 30 to 180 days. Increasing body weight, age, and presence of caudolateral curvilinear osteophyte corresponded to worse response to treatment. Results of the Kaplan Meier test showed significant differences between groups, with THG performing better considering several evaluations and scores. CONCLUSION THG recorded significant improvements in weight-bearing and in with the considered CMIs, particularly pain scores. Lower thermographic values were registered in THG up to the last evaluation day. Age, sex, and radiographic findings did significantly influenced response to treatment.
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Affiliation(s)
- João C. Alves
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
- MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Pólo da Mitra, Évora, Portugal
| | - Ana Santos
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
| | - Patrícia Jorge
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
| | - Catarina Lavrador
- MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Pólo da Mitra, Évora, Portugal
| | - L. Miguel Carreira
- Faculty of Veterinary Medicine, University of Lisbon (FMV/ULisboa), Lisbon, Portugal
- Interdisciplinary Centre for Research in Animal Health (CIISA) – University of Lisbon, (FMV/ULisboa), Lisbon, Portugal
- Anjos of Assis Veterinary Medicine Centre (CMVAA), Barreiro, Portugal
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Alves JC, Santos A, Jorge P, Lavrador C, Carreira LM. Intra-articular Injections With Either Triamcinolone Hexacetonide, Stanozolol, Hylan G-F 20, or a Platelet Concentrate Improve Clinical Signs in Police Working Dogs With Bilateral Hip Osteoarthritis. Front Vet Sci 2021; 7:609889. [PMID: 33537353 PMCID: PMC7849590 DOI: 10.3389/fvets.2020.609889] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022] Open
Abstract
Objectives: To compare the effect of intra-articular treatment with triamcinolone hexacetonide (TH), stanozolol, hyaluronan, and a platelet concentrate in police working dogs with bilateral hip osteoarthritis (OA). Study Design: Prospective, longitudinal, double-blinded, negative controlled study. Sample Population: Fifty police working dogs with naturally occurring hip OA. Methods: Animals were randomly assigned to a control group (CG, n = 10), TH group (THG, n = 10), platelet concentrate group (PCG, n = 10), stanozolol group (SG, n = 10), and Hylan G-F 20 group (HG). On days 0 (T0), 8, 15, 30, 90, and 180 days post-treatment, weight-bearing distribution was evaluated. In those days, and on days 60, 120, and 150, four clinical metrology instruments were completed. Kaplan-Meier estimators were conducted and compared with the log-rank test. Cox proportional hazard regression analysis was performed to determine treatment survival. Significance was set at p < 0.05. Results: Patients had a mean age of 6.5 ± 2.4 years and body weight of 26.7 ± 5.2 kg. At T0, hips were classified as mild (n = 35), moderate (n = 10), and severe (n = 5), according to the Orthopedic Foundation for Animals grading scheme. No differences were found between groups at that moment considering age, body weight, OFA hip score, and all assessments performed. All treatments improved clinical signs in various OA dimensions in some groups, with a broad effect interval. PCG showed a lower range of variation while maintaining a positive result for more extended periods (p < 0.01 for symmetry index and 0.01 < p < 0.04 in the majority of scores). Breed, age, sex, and OFA grade did not significantly influence response to treatment. Conclusions and Clinical Relevance: This is the first prospective, negative controlled, double-blinded study to compare the effect of a single administration of these IA treatments in dogs with hip OA. HG and PCG recorded more significant improvements throughout the 180-day follow-up. In particular, PCG also registered a lower variation in results, seemingly the best therapeutic option. Nevertheless, improvements were still observed in THG and SG, and these treatment options can be considered, mainly when the first two treatments are not available.
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Affiliation(s)
- João C. Alves
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal,MED - Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Forma Avana, Universidade de Évora, Évora, Portugal,*Correspondence: João C. Alves
| | - Ana Santos
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
| | - Patrícia Jorge
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
| | - Catarina Lavrador
- MED - Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Forma Avana, Universidade de Évora, Évora, Portugal
| | - L. Miguel Carreira
- Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal,Interdisciplinary Centre for Research in Animal Health (CIISA), University of Lisbon, Lisbon, Portugal,Anjos of Assis Veterinary Medicine Centre (CMVAA), Barreiro, Portugal
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Physical therapy, intra-articular dextrose prolotherapy, botulinum neurotoxin, and hyaluronic acid for knee osteoarthritis: randomized clinical trial. Int J Rehabil Res 2020; 43:219-227. [PMID: 32776763 DOI: 10.1097/mrr.0000000000000411] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This study aimed to compare the efficacy of four treatments in the management of knee osteoarthritis. We carried out a randomized clinical trial with four study arms in an outpatient Department of Physical Medicine and Rehabilitation at a University Hospital. In total, 120 patients with knee osteoarthritis ≥50 years of age were randomly allocated to four groups. The primary outcome was knee pain in visual analog scale and the secondary outcome was the Knee Injury and Osteoarthritis Outcome Score. The exercise was prescribed daily for all participants throughout the study. For physical therapy (group 1), participants received superficial heat, transcutaneous electrical nerve stimulation and pulsed ultrasound. We administered a single intra-articular injection of botulinum neurotoxin type A (group 2) and three injections of hyaluronic acid (group 3) or 20% dextrose (group 4) to patients in the corresponding groups. Mixed analysis of variance showed that there was statistically significant difference between the groups in pain (P < 0.001), and Knee Injury and Osteoarthritis Outcome Score (P < 0.001). Pairwise between- and within-group comparisons showed that botulinum neurotoxin and dextrose prolotherapy were the most, and hyaluronic acid was the least efficient treatments for controlling pain and recovering function in patients. An intra-articular injection of botulinum toxin type A or dextrose prolotherapy is effective first-line treatments. In the next place stands physical therapy particularly if the patient is not willing to continue regular exercise programs. Our study was not very supportive of intra-articular injection of hyaluronic acid as an effective treatment of knee osteoarthritis.
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Lee SH, Choi HH, Chang MC. The Effect of Botulinum Toxin Injection into the Common Extensor Tendon in Patients with Chronic Lateral Epicondylitis: A Randomized Trial. PAIN MEDICINE 2020; 21:1971-1976. [PMID: 31804698 DOI: 10.1093/pm/pnz323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Botulinum toxin (BTX) is widely used for pain control in various musculoskeletal disorders. OBJECTIVES We evaluated the analgesic effect of botulinum toxin type A (BTX-A) in chronic lateral epicondylitis and compared the effect between 10 and 50 IU of BTX-A. METHODS Sixty subjects with chronic lateral epicondylitis were included and underwent a BTX-A injection in the common extensor tendon. The subjects were randomly allocated into two groups: the small-dose group (SD group; 30 subjects, 10 IU) and large-dose group (LD group; 30 subjects, 50 IU). Treatment outcomes were evaluated by measuring the pain level using the numeric rating scale (NRS) and measuring grip strength before and one, two, three, four, five, and six months after treatment. RESULTS Subjects in both groups showed a significant decrease in NRS scores at all evaluation time points after treatment. The reduction in NRS scores was significantly greater in the LD group at one, two, three, and four months after treatment. Six months after treatment, 19 subjects (63.3%) in the SD group and 21 (70%) in the LD group reported successful pain relief (pain relief ≥50%). The rate of successful pain relief was not significantly different between the two groups. Grip strength was more increased in the LD group at one, two, three, four, and six months after treatment. CONCLUSIONS BTX-A injection into the common extensor tendon can be a good treatment option for chronic lateral epicondylitis. The 50-IU BTX-A injection achieved a better outcome than the 10-IU injection.
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Affiliation(s)
- Sang Hoon Lee
- Department of Radiology, Madi Pain Management Center, Jeonju, Republic of Korea
| | - Hyun Hee Choi
- Madi Research and Development Center, Jeonju, Republic of Korea
| | - Min Cheol Chang
- Department of Rehabilitation Medicine, College of Medicine, Yeungnam University, Daegu, Republic of Korea
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The Magnitude and Duration of the Effect of Intra-articular Corticosteroid Injections on Pain Severity in Knee Osteoarthritis: A Systematic Review and Meta-Analysis. Am J Phys Med Rehabil 2020; 99:617-625. [PMID: 31972612 DOI: 10.1097/phm.0000000000001384] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aims of the study were to clarify the evidence on the magnitude and duration of treatment effect of intra-articular corticosteroid injections for knee osteoarthritis compared with placebo, to evaluate a treatment effect by steroid type, and to describe the reported adverse effects. DESIGN Cochrane Controlled Trials Register, Medline, Embase, CINAHL, Scopus, and Web of Science databases were searched. The risk of systematic bias was assessed according to the Cochrane Collaboration's domain-based evaluation framework. RESULTS The final sample included eight randomized controlled studies with follow-ups from 1 to 26 wks. The risk of systematic bias was considered low in five and high in three studies. The pooled standardized mean difference was -0.58 (95% confidence interval = -0.88 to -0.27) and number needed to treat 5.1 (95% confidence interval = 10.0 to 3.7). The heterogeneity was considerable. The pooled effect size approached the level of statistical insignificance at 4 mos. The pooled risk ratio of adverse effects was insignificant 0.95 (95% confidence interval = 0.34 to 2.55). CONCLUSIONS The intra-articular corticosteroid had a mild to moderate effect on pain severity up to 3 mos after the injection-much longer than it had previously been reported. The effect may vary substantially in different patient groups and appropriate patient selection is important. The risk of adverse effects was low.
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Blanshan N, Krug H. The Use of Botulinum Toxin for the Treatment of Chronic Joint Pain: Clinical and Experimental Evidence. Toxins (Basel) 2020; 12:toxins12050314. [PMID: 32397671 PMCID: PMC7291335 DOI: 10.3390/toxins12050314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/25/2020] [Accepted: 05/05/2020] [Indexed: 12/11/2022] Open
Abstract
Chronic osteoarthritis pain is an increasing worldwide problem. Treatment for osteoarthritis pain is generally inadequate or fraught with potential toxicities. Botulinum toxins (BoNTs) are potent inhibitors of neuropeptide release. Paralytic toxicity is due to inhibition at the neuromuscular junction, and this effect has been utilized for treatments of painful dystonias. Pain relief following BoNT muscle injection has been noted to be more significant than muscle weakness and hypothesized to occur because of the inhibition of peripheral neuropeptide release and reduction of peripheral sensitization. Because of this observation, BoNT has been studied as an intra-articular (IA) analgesic for chronic joint pain. In clinical trials, BoNT appears to be effective for nociceptive joint pain. No toxicity has been reported. In preclinical models of joint pain, BoNT is similarly effective. Examination of the dorsal root ganglion (DRG) and the central nervous system has shown that catalytically active BoNT is retrogradely transported by neurons and then transcytosed to afferent synapses in the brain. This suggests that pain relief may also be due to the central effects of the drug. In summary, BoNT appears to be safe and effective for the treatment of chronic joint pain. The long-term effects of IA BoNT are still being determined.
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Affiliation(s)
- Nicole Blanshan
- Minneapolis VA Health Care System, Minneapolis, MN 55455, USA;
| | - Hollis Krug
- Minneapolis VA Health Care System, Minneapolis, MN 55455, USA;
- Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: ; Tel.: +1-612-467-4190
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Zhai S, Huang B, Yu K. The efficacy and safety of Botulinum Toxin Type A in painful knee osteoarthritis: a systematic review and meta-analysis. J Int Med Res 2019; 48:300060519895868. [PMID: 31884849 PMCID: PMC7783274 DOI: 10.1177/0300060519895868] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Objective A systematic review and meta-analysis was carried out to evaluate the
efficacy and safety of Botulinum Toxin Type A in painful knee
osteoarthritis. Methods The EMBASE and MEDLINE databases were searched to identify randomized
controlled trials (RCTs) of Botulinum Toxin Type A in the treatment of
painful knee osteoarthritis. The references of included literature were also
searched. Results Five articles involving 5 RCTs including 314 patients were included in this
analysis. There was a significant difference between Botulinum Toxin Type A
and placebo in the visual analog scale (VAS) pain scale and Western Ontario
& McMaster Universities Osteoarthritis Index (WOMAC) questionnaire score
in both the short-term (≤4 weeks) and long-term (≥8 weeks) treatment period.
There were no serious adverse events in the Botulinum Toxin Type A
groups. Conclusions This meta-analysis suggests that Botulinum Toxin Type A is effective and safe
in the painful knee OA treatment. However, high-quality randomized
controlled studies are still needed to further confirm our findings.
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Affiliation(s)
- Shuchao Zhai
- Department of Orthopedics, Tianjin Fifth Central Hospital Tianjin, China
| | - Botao Huang
- Department of Orthopedics, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Kai Yu
- Department of Orthopedics, Tianjin Fifth Central Hospital Tianjin, China
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Abstract
Objective To evaluate contextual effects in the form of placebo responses (PRs) for patient-reported pain and function and objectively measured function in osteoarthritis (OA) clinical trials. Methods Two authors independently searched major electronic databases from inception to 20 May 2019. Included studies were randomized, placebo-controlled OA trials of pharmacological agents reporting both patient-reported and objectively measured outcomes. PRs for each type of outcome measure were compared by standardized mean differences (SMDs). The placebo response ratio (PRR) assessed the placebo to treatment effect size. The effect sizes of PRs and PRRs were pooled using a random effects model. Results Twenty-one trials met the inclusion criteria; 20 were double-blinded with one not reporting on blinding status. Compared with patients’ self-reported outcome (PRO) pain, PRs were significantly lower for PRO function (SMD − 0.16 [95% CI = − 0.28, − 0.05], p = 0.006), objectively measured muscle strength (SMD − 0.34 [95% CI − 0.58, − 0.10], p = 0.006), and range of motion (SMD = − 0.31 [95% CI = − 0.54, − 0.08], p = 0.008) function. Generally, PRs for function outcomes (patient-reported and objectively measured) were similar. The overall PRR for different measures ranged from the smallest (most favorable) for walking time/distance (0.30, 95% CI 0.16 to 0.43) to the largest for PRO pain (0.44, 95% CI 0.23 to 0.65). Conclusion Function measures both subjective and objective had less contextual effects than pain measures in OA trials. Our results support the OMERACT-OARSI recommendations to include measures of physical function in all clinical trials of hip and knee OA and suggest that a greater use of function measures might enhance the success rates of pharmacological OA trials. Increasing the availability of mobile health apps should facilitate the acquisition of measured function data. Electronic supplementary material The online version of this article (10.1186/s13075-019-1951-6) contains supplementary material, which is available to authorized users.
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