Matthew P. Cotchett

A comparison of foot kinematics in people with normal- and flat-arched feet using the Oxford Foot Model

Foot posture is thought to influence predisposition to overuse injuries of the lower limb. Although the mechanisms underlying this proposed relationship are unclear, it is thought that altered foot kinematics may play a role. Therefore, this study was designed to investigate differences in foot motion between people with normal- and flat-arched feet using the Oxford Foot Model (OFM). Foot posture in 19 participants was documented as normal-arched (n=10) or flat-arched (n=9) using a foot screening protocol incorporating measurements from weightbearing antero-posterior and lateral foot radiographs. Differences between the groups in triplanar motion of the tibia, rearfoot and forefoot during walking were evaluated using a three-dimensional motion analysis system incorporating a multi-segment foot model (OFM). Participants with flat-arched feet demonstrated greater peak forefoot plantar-flexion (-13.7° ± 5.6° vs -6.5° ± 3.7°; p=0.004), forefoot abduction (-12.9° ± 6.9° vs -1.8° ± 6.3°; p=0.002), and rearfoot internal rotation (10.6° ± 7.5° vs -0.2°± 9.9°; p=0.018) compared to those with normal-arched feet. Additionally, participants with flat-arched feet demonstrated decreased peak forefoot adduction (-7.0° ± 9.2° vs 5.6° ± 7.3°; p=0.004) and a trend towards increased rearfoot eversion (-5.8° ± 4.4° vs -2.5° ± 2.6°; p=0.06). These findings support the notion that flat-arched feet have altered motion associated with greater pronation during gait; factors that may increase the risk of overuse injury.

Effectiveness of Trigger Point Dry Needling for Plantar Heel Pain: A Randomized Controlled Trial

Background Plantar heel pain can be managed with dry needling of myofascial trigger points; however, there is only poor-quality evidence supporting its use. Objective The purpose of this study was to evaluate the effectiveness of dry needling for plantar heel pain. Design The study was a parallel-group, participant-blinded, randomized controlled trial. Setting The study was conducted in a university health sciences clinic. Patients Study participants were 84 patients with plantar heel pain of at least 1 months duration. Intervention Participants were randomly assigned to receive real or sham trigger point dry needling. The intervention consisted of 1 treatment per week for 6 weeks. Participants were followed for 12 weeks. Measurements Primary outcome measures included first-step pain, as measured with a visual analog scale (VAS), and foot pain, as measured with the pain subscale of the Foot Health Status Questionnaire (FHSQ). The primary end point for predicting the effectiveness of dry needling for plantar heel pain was 6 weeks. Results At the primary end point, significant effects favored real dry needling over sham dry needling for pain (adjusted mean difference: VAS first-step pain=−14.4 mm, 95% confidence interval [95% CI]=−23.5 to −5.2; FHSQ foot pain=10.0 points, 95% CI=1.0 to 19.1), although the between-group difference was lower than the minimal important difference. The number needed to treat at 6 weeks was 4 (95% CI=2 to 12). The frequency of minor transitory adverse events was significantly greater in the real dry needling group (70 real dry needling appointments [32%] compared with only 1 sham dry needling appointment [<1%]). Limitations It was not possible to blind the therapist. Conclusion Dry needling provided statistically significant reductions in plantar heel pain, but the magnitude of this effect should be considered against the frequency of minor transitory adverse events.

Effectiveness of dry needling and injections of myofascial trigger points associated with plantar heel pain: a systematic review

BackgroundPlantar heel pain (plantar fasciitis) is one of the most common musculoskeletal pathologies of the foot. Plantar heel pain can be managed with dry needling and/or injection of myofascial trigger points (MTrPs) however the evidence for its effectiveness is uncertain. Therefore, we aimed to systematically review the current evidence for the effectiveness of dry needling and/or injections of MTrPs associated with plantar heel pain.MethodsWe searched specific electronic databases (MEDLINE, EMBASE, AMED, CINAHL, SPORTDiscus and AMI) in April 2010 to identify randomised and non-randomised trials. We included trials where participants diagnosed with plantar heel pain were treated with dry needling and/or injections (local anaesthetics, steroids, Botulinum toxin A and saline) alone or in combination with acupuncture. Outcome measures that focussed on pain and function were extracted from the data. Trials were assessed for quality using the Quality Index tool.ResultsThree quasi-experimental trials matched the inclusion criteria: two trials found a reduction in pain for the use of trigger point dry needling when combined with acupuncture and the third found a reduction in pain using 1% lidocaine injections when combined with physical therapy. However, the methodological quality of the three trials was poor, with Quality Index scores ranging form 7 to 12 out of a possible score of 27. A meta-analysis was not conducted because substantial heterogeneity was present between trials.ConclusionsThere is limited evidence for the effectiveness of dry needling and/or injections of MTrPs associated with plantar heel pain. However, the poor quality and heterogeneous nature of the included studies precludes definitive conclusions being made. Importantly, this review highlights the need for future trials to use rigorous randomised controlled methodology with measures such as blinding to reduce bias. We also recommend that such trials adhere to the Standards for Reporting Interventions in Controlled Trials of Acupuncture (STRICTA) to ensure transparency.

Consensus for dry needling for plantar heel pain (plantar fasciitis): a modified Delphi study

Hypothesis Plantar heel pain (plantar fasciitis) is a common and disabling condition. A variety of treatment options are available to patients with plantar heel, however the evidence for these treatments is generally weak and the best way to manage plantar heel pain remains unclear. Trigger point dry needling is increasingly used as an adjunct therapy for musculoskeletal pain. In patients with plantar heel pain this technique is thought to improve muscle activation patterns, increase joint range of motion and alleviate pain. However, there have been no randomised controlled trials that have evaluated the effectiveness of dry needling for plantar heel pain. Methods In order to develop a treatment protocol to evaluate the effectiveness of dry needling for plantar heel pain we conducted a three stage modified Delphi process using a web-based survey technique. Over a series of three iterations, 30 experts (participants) worldwide indicated their level of agreement on specific issues relating to the use of dry needling for plantar heel pain including their treatment rationale, needling details and treatment regimen. Consensus for a dry needling protocol for plantar heel pain was achieved when >60% of participants (IQR ≤ 1.0 category on 5-point Likert scale) agreed the protocol was adequate. Results The response rate was 75% (n=30), 100% (n=30) and 93% (n=28) in the first, second and third rounds respectively. Round 1 helped generate a list of 10 items that were deemed important for developing a dry needling protocol for plantar heel pain. These 10 items were subsequently presented in Round 2. Of these, 5 of the 10 items met the criteria to be included in a dry needling protocol for plantar heel pain that was presented in the final round, Round 3. Items that did not meet the criteria were either removed or amended and then presented in Round 3. In the final round, 93% of participants (IQR range = 1) agreed the proposed dry needling protocol for plantar heel pain was adequate. The protocol can now be used in future research projects designed to evaluate the effectiveness of dry needling for plantar heel pain.

Hyperemia in Plantar Fasciitis Determined by Power Doppler Ultrasound

STUDY DESIGN Cross-sectional observational study. OBJECTIVES To investigate the presence of soft tissue hyperemia in plantar fasciitis with power Doppler ultrasound. BACKGROUND Localized hyperemia is an established feature of tendinopathy, suggesting that neurovascular in-growth may contribute to tendon-associated pain in some patients. The presence of abnormal soft tissue vascularity can be assessed with Doppler ultrasound, and a positive finding can assist with targeted treatment plans. However, very little is known regarding the presence of hyperemia in plantar fasciitis and the ability of routine Doppler ultrasound to identify vascular in-growth in the plantar fascia near its proximal insertion. METHODS This observational study included 30 participants with plantar fasciitis unrelated to systemic disease and 30 age- and sex-matched controls. Ultrasound examination was performed with a 13- to 5-MHz linear transducer, and power Doppler images were assessed by 2 blinded investigators. RESULTS Hyperemia of the plantar fascia was present in 8 of 30 participants with plantar fasciitis and in 2 of 30 controls. The between-group difference for hyperemia, using a 4-point scale, was statistically significant, with participants with plantar fasciitis showing increased Doppler ultrasound signal compared to controls (Mann-Whitney U, P = .03). However, the majority of participants with plantar fasciitis with evidence of hyperemia demonstrated very mild color changes, and only 3 were found to have moderate or marked hyperemia. CONCLUSION Mild hyperemia can occur with plantar fasciitis, but most individuals will not exhibit greater soft tissue vascularity when assessed with routine Doppler ultrasound. Clinicians treating plantar fasciitis should not consider a positive Doppler signal as essential for diagnosis of the condition but, rather, as a feature that may help to refine the treatment plan for an individual patient.

Depression, Anxiety, and Stress in People With and Without Plantar Heel Pain

Background: Depression, anxiety, and stress are prevalent in patients with musculoskeletal pain, but the impact of these emotional states has not been evaluated in people with plantar heel pain. The aim of this study was to evaluate the association between depression, anxiety, and stress with plantar heel pain. Methods: Forty-five participants with plantar heel pain were matched by sex and age (±2 years) to 45 participants without plantar heel pain. Levels of depression, anxiety, and stress were measured using the Depression, Anxiety and Stress Scale (short version) in participants with and without plantar heel pain. Logistic regression was conducted to determine if levels of depression, anxiety, or stress were associated with having plantar heel pain. Results: Univariate analysis indicated that participants with plantar heel pain had greater levels of depression (mean difference = 4.4, 95% CI 2.3 to 6.5), anxiety (mean difference = 2.6, 95% CI 0.9 to 4.3), and stress (mean difference = 4.8, 95% CI 1.9 to 7.8). After adjusting for age, sex, BMI, and education, for every 1 unit increase in depression, anxiety, or stress (in the DASS subscales), the odds ratios for having plantar heel pain were increased by 1.3 (95% CI 1.1 to 1.6), 1.3 (95% CI 1.1 to 1.5), and 1.2 (95% CI 1.1 to 1.3), respectively. Conclusion: Symptoms of depression, anxiety, and stress were independently associated with plantar heel pain. Larger prospective studies are necessary to evaluate the temporal association between these emotional states and plantar heel pain. Level of Evidence: Level III, cross sectional, observational.

Research culture in allied health: a systematic review

Research evidence is required to guide optimal allied health practice and inform policymakers in primary health care. Factors that influence a positive research culture are not fully understood, and nor is the impact of a positive research culture on allied health professionals. The aim of this systematic review was to identify factors that affect allied health research culture and capacity. An extensive search of 11 databases was conducted in June 2015. Studies were included if they were published in English, had full-text availability and reported research findings relating to allied health professions. Study quality was evaluated using the McMaster Critical Review Forms. Fifteen studies were eligible for inclusion. A meta-analysis was not performed because of heterogeneity between studies. Allied health professionals perceive that their individual research skills are lower in comparison to their teams and organisation. Motivators for conducting research for allied health professionals include developing skills, increasing job satisfaction and career advancement. Barriers include a lack of time, limited research skills and other work roles taking priority. Multilayered strategies, such as collaborations with external partners and developing research leadership positions, aimed at addressing barriers and enablers, are important to enhance allied health research culture and capacity.

The association between pain catastrophising and kinesiophobia with pain and function in people with plantar heel pain

BACKGROUND Psychological variables, including catastrophic thoughts and kinesiophobia, are common in people with chronic musculoskeletal pain and are associated with pain and function. However, the role of each factor has not been evaluated in people with plantar heel pain (plantar fasciitis). METHODS Thirty-six participants diagnosed with plantar heel pain were recruited. Main outcome measures included the Pain Catastrophising Scale, Tampa Scale of Kinesiophobia, the Foot Health Status Questionnaire and a Visual Analogue Scale. Hierarchical regression models were developed to evaluate the association between each psychological variable with variations in foot pain, first step pain and foot function. RESULTS In a full model with age, sex and BMI, kinesiophobia contributed to 21% of the variability in foot function and was a significant predictor in this model (Beta=-0.49, P=0.006). In a separate model, catastrophising explained 39% of the variability in foot function and was a significant predictor in this model (Beta=-0.65, P<0.001). Finally, pain catastrophising accounted for 18% of the variability in first step pain and was a significant predictor in a model that also included age, sex and BMI (Beta=0.44, P=0.008). CONCLUSIONS After controlling for age, sex and BMI, kinesiophobia and catastrophising were significantly associated with foot function, while catastrophising was associated with first step pain in people with plantar heel pain. In addition to addressing biological factors in the management of plantar heel pain, clinicians should consider the potential role of pain catastrophising and kinesiophobia in this population.

Flat-arched feet display altered foot kinematics compared to normal-arched feet during walking

Methods Nineteen participants with normaland flat-arched feet were recruited for this study (10 with normal and 9 with flat-arched feet). A foot screening protocol comprising measurements from weightbearing antero-posterior and lateral foot radiographs were used to classify foot posture. Tri-planar motion of the tibia, rearfoot and forefoot during barefoot walking were recorded from 10 cameras and evaluated using a three-dimensional motion analysis system incorporating a multi-segment foot model (OFM).

Research culture in a regional allied health setting

Research evidence is required to guide best practice, inform policy and improve the health of communities. Current indicators consider allied health research culture to be low. This study aimed to measure the allied health research culture and capacity in a Victorian regional health service. The Research Capacity and Culture tool was used to evaluate research capacity and culture across individual, team and organisation domains. One-way ANOVA was used to determine differences between allied health professions, whereas responses to open-ended questions were themed using open coding. One hundred thirty-six allied health professionals completed the survey. There were statistically significant differences in the organisation domain between social work, physiotherapy and occupational therapy professions; in the team domain, between social work and all other professions. Motivators for conducting research included providing a high-quality service, developing skills and increasing job satisfaction. Barriers included other work roles taking priority, a lack of time and limited research skills. Multi-layered strategies including establishing conjoint research positions are recommended to increase allied health research culture in this regional area.