Identifying phenotypes in persons with temporomandibular disorders, using latent class analyses: Temporomandibular disorders and phenotypes.

Background: The heterogeneity of persons with temporomandibular disorders (TMD) and the lack of effective treatments have called for a biopsychosocial model and the development of a more personalised treatment approach. Emphasis on phenotypes might be a beneficial approach.

Objective: Identifying phenotypes among persons with TMD using potential prognostic factors, including personal characteristics and responses to clinical tests.

Clinical indicators for recommending continued care to patients with neck pain in chiropractic practice: a cohort study.

Background: Chiropractors' clinical indicators for recommending preventive continued care to patients with low back pain include previous pain episodes, a history of long pain duration and improvement after initial treatment. Our objectives were, in a cohort of patients with neck pain, to examine whether these clinical indicators were associated with being recommended continued care beyond 4 weeks, and if so whether this recommendation was dependent of chiropractor characteristics, as well as if the number of clinical indicators influenced this recommendation.

Methods: In this multi-center observational study, 172 patients seeking care for a new episode of neck pain in chiropractic practice in Norway were included between September 2015 and May 2016.

Evidence-based maintenance care among chiropractors in Norway: a cross-sectional survey in the Nordic maintenance care program.

Background: Chiropractors use a treatment strategy called maintenance care with the intent of secondary and tertiary prevention. The Nordic Maintenance Care Program provides evidence of when and for whom maintenance care should be offered. Dissemination has occurred through articles, workshops, social media, conference in Europe and internationally.

Investigating attitudes, skills, and use of evidence-based practice among Norwegian chiropractors; a national cross-sectional study.

Background: Evidence-based practice (EBP) is essential in improving the quality of healthcare and of importance for all health care personnel. No study in Norway has investigated attitudes, skills and use related to EBP among chiropractors. The aim of this study was to describe Norwegian chiropractors' attitudes, skills, and use of EBP, as well as the barriers and facilitators to their use of EBP.

Exploring visual pain trajectories in neck pain patients, using clinical course, SMS-based patterns, and patient characteristics: a cohort study.

Background: The dynamic nature of neck pain has so far been identified through longitudinal studies with frequent measures, a method which is time-consuming and impractical. Pictures illustrating different courses of pain may be an alternative solution, usable in both clinical work and research, but it is unknown how well they capture the clinical course. The aim of this study was to explore and describe self-reported visual trajectories in terms of details of patients' prospectively reported clinical course, their SMS-based pattern classification of neck pain, and patient's characteristics.

The association between different outcome measures and prognostic factors in patients with neck pain: a cohort study.

Background: Health domains like pain, disability, and health-related quality of life are commonly used outcomes for musculoskeletal disorders. Most prognostic studies include only one outcome, and it is unknown if prognostic factors and models may be generic across different outcomes. The objectives of this study were to examine the correlation among commonly used outcomes for neck pain (pain intensity, disability, and health-related quality of life) and to explore how the predictive performance of a prognostic model differs across commonly used outcomes.

The clinical course of neck pain: Are trajectory patterns stable over a 1-year period?

Background: Recent studies with data-driven approaches have established common pain trajectories. It is uncertain whether these trajectory patterns are consistent over time, and if a shorter measurement period will provide accurate trajectories.

Methods: We included 1,124 patients with non-specific neck pain in chiropractic practice.

Neck pain patterns and subgrouping based on weekly SMS-derived trajectories.

Background: Neck and low back pain represent dynamic conditions that change over time, often with an initial improvement after the onset of a new episode, followed by flare-ups or variations in intensity. Pain trajectories were previously defined based on longitudinal studies of temporal patterns and pain intensity of individuals with low back pain. In this study, we aimed to 1) investigate if the defined patterns and subgroups for low back pain were applicable to neck pain patients in chiropractic practice, 2) explore the robustness of the defined patterns, and 3) investigate if patients within the various patterns differ concerning characteristics and clinical findings.

Visual trajectory pattern as prognostic factors for neck pain.

Background: A novel approach capturing both temporal variation and pain intensity of neck pain is by visual trajectory patterns. Recently, both previous and expected visual trajectory patterns were identified as stronger predictors of outcome than traditional measures of pain history and psychological distress. Our aim was to examine patient characteristics within the various previous and expected patterns, relationship between the two patterns and predictive value of a variable combining the previous and expected patterns.

Broad External Validation and Update of a Prediction Model for Persistent Neck Pain After 12 Weeks.

Study Design: A prospective observational study.

Objective: To externally validate the prediction model developed by Schellingerhout and colleagues predicting global perceived effect at 12 weeks in patients with neck pain and to update and internally validate the updated model.

Summary Of Background Data: Only one prediction model for neck pain has undergone some external validation with good promise.

Musculoskeletal diagnostic ultrasound imaging for thickness measurement of four principal muscles of the cervical spine -a reliability and agreement study.

Background: The reliability of musculoskeletal diagnostic ultrasound imaging (MSK-DUSI) for the evaluation of neck musculature has been sparsely documented in the research literature. Until now, research has featured a limited number of subjects and only few studies have tested for both inter- and intra-reliability using appropriate methodology.

Methods: Four examiners conducted an inter- and intra-rater reliability and agreement study.