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1.
Trials ; 16: 588, 2015 Dec 24.
Article in English | MEDLINE | ID: mdl-26703477

ABSTRACT

BACKGROUND: The role of injections of therapeutic substances into the back as treatment for low back pain is unclear. Facet joint injections are widely used despite the absence of evidence of sustained benefit. We hypothesise that facet joint injections might facilitate engagement with physiotherapist-led, best usual care (a combined physical and psychological programme) and is a clinically and cost-effective treatment for people with suspected low back pain of facet joint origin. METHODS/DESIGN: We present here the protocol for a randomised controlled feasibility trial for a main trial to test the above hypotheses. Patients referred to secondary care with persistent non-specific low back pain will be screened and invited to take part in the study. Those who meet the eligibility criteria will be invited for a physiotherapy assessment to confirm trial eligibility and for baseline data collection. All participants (n = 150) will be offered the best usual care package with physical and psychological components. Those randomised into the intervention arm (n = 75) will, in addition, receive intra-articular facet joint injections with local anaesthetic and steroids. Primary outcome data will be collected using daily and then weekly text messaging service for a pain score on a 0-10 scale. Questionnaire follow-up will be at 3, 6, and 12 months. Evaluation of trial processes and health economic analyses, including a value of information analysis, will be undertaken. The process evaluation will be mixed methods and will include the views of all stakeholders. DISCUSSION: Whilst this trial is a feasibility study it is currently one of the largest trials in this area. The outcomes will provide some evidence on the use of facet joint injections for patients with clinically diagnosed facet joint pain. TRIAL REGISTRATION: EudraCT identifier 2014-000682-50, (registered on 12 February 14). ISRCTN registry number: ISRCTN93184143 DOI 10.1186/ISRCTN93184143 (registered on 27 February 2014).


Subject(s)
Adrenal Cortex Hormones/administration & dosage , Analgesics/administration & dosage , Anesthetics, Local/administration & dosage , Low Back Pain/drug therapy , Zygapophyseal Joint/drug effects , Adrenal Cortex Hormones/adverse effects , Analgesics/adverse effects , Anesthetics, Local/adverse effects , Clinical Protocols , Feasibility Studies , Humans , Injections, Intra-Articular , Low Back Pain/diagnosis , Low Back Pain/physiopathology , Pain Measurement , Research Design , Surveys and Questionnaires , Time Factors , Treatment Outcome , United Kingdom , Zygapophyseal Joint/physiopathology
2.
Pain Physician ; 18(5): 473-93, 2015.
Article in English | MEDLINE | ID: mdl-26431124

ABSTRACT

BACKGROUND: Since the publication of guidelines by the UK National Institute for Health and Care Excellence (NICE) and the American Pain Society guidelines for low back pain in 2009 there have been deep divisions in the pain treatment community about the use of therapeutic intraarticular facet joint injections. While evidence for the effectiveness or not of intraarticular facet joint injections remains sparse, uncertainty will remain. The Warwick feasibility study, along with a concurrent study with a different design led by another group, aims to provide a stable platform from which the effectiveness and cost effectiveness of intraarticular facet joint injections added to normal care could be evaluated in randomized controlled trials (RCTs). OBJECTIVES: To reach consensus on key design considerations for the Warwick facet feasibility study from which the study protocol and working manuals will be developed. STUDY DESIGN: A consensus conference involving expert professionals and lay members. METHODS: Preliminary work identified 5 key design considerations for deliberation at our consensus conference. Three concerned patient assessment and treatment: diagnosis of possible facet joint pain, interaarticular facet joint injection technique, and best usual care. Two concerned trial analysis: a priori sub-groups and minimally important difference and are reported elsewhere. We did systematic evidence reviews of the design considerations and summarized the evidence. Our design questions and evidence summaries were distributed to all delegates. This formed the basis for discussions on the day. Clinical experts in all aspects of facet joint injection from across the UK along with lay people were invited via relevant organizations. Nominal group technique was used in 15 facilitated initial small group discussions. Further discussion and ranking was undertaken in plenary. All small group and plenary results were recorded and checked and verified post conference. Where necessary participants were contacted via email to resolve outstanding issues. RESULTS: Fifty-two delegates attended the conference with lay people and all relevant professions represented. Consensus was reached on the details of how to assess patients for facet joint pain, undertake the injections, and deliver usual care. Where post conference checking of results revealed errors in calculating ranking results on the day, consensus was reached by email consultation. All but 3 delegates agreed to be associated with the outcome. LIMITATIONS: Allocating one day for discussing a wide range of topics imposed time pressure on discussion and calculation of the numerous rankings. CONCLUSIONS: Through the use of an evidence-based, systematic, inclusive, and transparent process we have established consensus from expert health professionals in the UK, with lay input, on the clinical assessment of suspected facet joint pain, interaarticular injection for facet joint pain, and best usual care for use in a feasibility study for a proposed pragmatic clinical trial of interaarticular facet joint injections. This provides a strong basis for a clinical trial that will be acceptable to the pain treatment community.


Subject(s)
Low Back Pain/drug therapy , Randomized Controlled Trials as Topic/methods , Zygapophyseal Joint , Anesthetics, Local/administration & dosage , Anesthetics, Local/therapeutic use , Anti-Inflammatory Agents/administration & dosage , Anti-Inflammatory Agents/therapeutic use , Bupivacaine/administration & dosage , Bupivacaine/analogs & derivatives , Bupivacaine/therapeutic use , Clinical Protocols , Consensus , Delivery of Health Care/methods , Evidence-Based Medicine , Exercise Therapy , Feasibility Studies , Humans , Injections, Intra-Articular , Levobupivacaine , Low Back Pain/diagnosis , Low Back Pain/rehabilitation , Pain Measurement , Patient Education as Topic , Research Design , Triamcinolone/administration & dosage , Triamcinolone/therapeutic use
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