The ShortMAC: Minimum Important Change of a Reduced Version of the Western Ontario and McMaster Universities Osteoarthritis Index

Stair-Climbing Training with Interferential Electrotherapy Improves Knee Muscle Strength, Dynamic Postural Stability, Pain Score, and Physical Activity in Patients with Knee Osteoarthritis

Background/Objective: This study aimed to compare the functional outcomes, such as knee muscle strength, dynamic postural stability, pain scores, and physical activity, in patients with knee osteoarthritis (OA) on stair climbing training with and without interferential electrotherapy (IFE) for 12 weeks. Methods: A total of 40 knee OA patients with Kellgren-Lawrence (K-L) grade ≤ 2 were enrolled (20 stair-climbing training with IFE vs. 20 stair-climbing training without IFE). The knee quadriceps and hamstring muscle strengths were measured using an isokinetic device. The dynamic postural stability was assessed using postural stabilometry. The pain score was evaluated using the visual analog scale (VAS). Physical activity was assessed using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Results: The WOMAC score was significantly different (p < 0.019) between stair-climbing training with and without IFE in patients with knee OA, while knee muscle strength, dynamic postural stability, or pain score were not (all p > 0.05). Conclusion: Stair-climbing training with IFE was more beneficial for physical activity recovery than stair-climbing training without IFE. Therefore, clinicians and therapists should be aware that stair climbing, which can be practiced in daily life for the management of patients with knee OA, and the addition of IFE may improve physical activity.

Effect of Context Specificity on Response to the Shortened WOMAC Function Scale in Patients Undergoing Total Knee Arthroplasty

OBJECTIVE

To determine, in patients undergoing total knee arthroplasty (TKA), whether increasing context specificity of selected items of the shortened version of the Western Ontario and McMaster Universities Osteoarthritis Index function (WOMAC-F) scale (ShortMAC-F) (1) enhanced the convergent validity of the ShortMAC-F with performance-based mobility measures (ii) affected mean scale score, structural validity, reliability, and interpretability.

DESIGN

Secondary analysis of randomized clinical trial data.

SETTING

A tertiary teaching hospital.

PARTICIPANTS

Patients undergoing TKA (N=114).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

The ShortMAC-F was modified by specifying the "ascending stairs" and "rising from sitting" items to enquire about difficulty in performing the tasks without reliance on compensatory strategies, whereas the modified "level walking" item enquired about difficulty in walking 400 m. Before and 12 weeks after TKA, patients completed the WOMAC-F questionnaire, modified ShortMAC-F questionnaire, knee pain scale questionnaire, sit-to-stand test, fast gait speed test, and stair climb test. Interpretability was evaluated by calculating anchor-based substantial clinical benefit estimates.

RESULTS

The modified ShortMAC-F correlated significantly more strongly than ShortMAC-F or WOMAC-F with pooled performance measures (differences in correlation values, 0.12-0.14). Increasing item context specificity of the ShortMAC-F did not influence its psychometric properties of unidimensionality (comparative fit and Tucker-Lewis indices, >0.95; root mean square error of approximation, 0.05-0.08), reliability (Cronbach's α, 0.75-0.83), correlation with pain intensity (correlation values, 0.48-0.52), and substantial clinical benefit estimates (16 percentage points); however, it resulted in lower mean score (4.5-4.8 points lower).

CONCLUSIONS

The modified ShortMAC-F showed sufficient measurement properties for clinical application, and it seemed more adept than WOMAC-F at correlating with performance-based measures in TKA.

Reducing the burden of knee osteoarthritis through community pharmacy: Protocol for a randomised controlled trial of the Knee Care for Arthritis through Pharmacy Service

INTRODUCTION

Knee osteoarthritis (OA) negatively impacts the health outcomes and equity, social and employment participation, and socio-economic wellbeing of those affected. Little community-based support is offered to people with knee OA in Aotearoa New Zealand. Identifying Māori and non-Māori with knee OA in community pharmacy and providing co-ordinated, evidence- and community-based care may be a scalable, sustainable, equitable, effective and cost-effective approach to improve health and wellbeing.

AIM

Assess whether the Knee Care for Arthritis through Pharmacy Service (KneeCAPS) intervention improves knee-related physical function and pain (co-primary outcomes). Secondary aims assess impacts on health-related quality of life, employment participation, medication use, secondary health care utilisation, and relative effectiveness for Māori.

METHODS AND ANALYSIS

A pragmatic randomised controlled trial will compare the KneeCAPS intervention to the Pharmaceutical Society of New Zealand Arthritis Fact Sheet and usual care (active control) at 12 months for Māori and non-Māori who have knee OA. Participants will be recruited in community pharmacies. Knee-related physical function will be measured using the function subscale of the Short Form of the Western Ontario and McMaster Universities Osteoarthritis Index. Knee-related pain will be measured using an 11-point numeric pain rating scale. Primary outcome analyses will be conducted on an intention-to-treat basis using linear mixed models. Parallel within-trial health economic analysis and process evaluation will also be conducted.

ETHICS AND TRIAL DISSEMINATION

Ethical approval was obtained from the Central Health and Ethics Committee (2022-EXP-11725). The trial is registered with ANZCTR (ACTRN12622000469718). Findings will be submitted for publication and shared with participants.

Bone Marrow Aspirate Concentrate Is Equivalent to Platelet-Rich Plasma for the Treatment of Knee Osteoarthritis at 2 Years: A Prospective Randomized Trial

BACKGROUND

Autologous platelet-rich plasma (PRP) and bone marrow aspirate concentrate (BMC) are being used clinically as therapeutic agents for the treatment of knee osteoarthritis.

PURPOSE/HYPOTHESIS

The purpose of this study was to compare the efficacy of BMC and PRP on pain and function in patients with knee osteoarthritis up to 24 months after injection. It was hypothesized that patients receiving BMC would have better sustained outcomes than those receiving PRP.

STUDY DESIGN

Randomized controlled trial; Level of evidence, 2.

METHODS

A total of 90 participants aged between 18 and 80 years with symptomatic knee osteoarthritis (Kellgren-Lawrence grades 1-3) were randomized into 2 study groups: PRP and BMC. Both groups completed the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and subjective International Knee Documentation Committee (IKDC) questionnaire before and 1, 3, 6, 9, 12, 18, and 24 months after a single intra-articular injection of leukocyte-rich PRP or BMC. A linear mixed-effects model was performed to quantify the effects over time and the difference between the groups. This model has the random effect for time to assess the extent in which the change over time differs from one person to another.

RESULTS

An overall 84 patients completed questionnaires from baseline to 12 months; however, 17 patients (n = 9; PRP group) were lost to follow-up at 18 months and 25 (n = 13; PRP group) at 24 months. There were no statistically significant differences in IKDC (P = .909; 95% CI, -6.26 to 7.03) or WOMAC (P = .789; 95% CI, -6.26 to 4.77) scores over time between the groups. Both groups had significantly improved IKDC (P < .001; 95% CI, 0.275-0.596) and WOMAC (P = .001; 95% CI, -0.41 to -0.13) scores from baseline to 24 months after the injection. These improvements plateaued at 3 months and were sustained for 24 months after the injection, with no difference between PRP and BMC at any time point.

CONCLUSIONS

For the treatment of osteoarthritis, PRP and BMC performed similarly out to 24 months. BMC was not superior to PRP.

REGISTRATION

NCT03289416 (ClincalTrials.gov identifier).

Effectiveness of dry needling techniques in patients with knee osteoarthritis: A systematic review and meta-analysis

BACKGROUND

Dry needling has been found to be effective in various myofascial pain syndromes and musculoskeletal conditions. However, there is a need to evaluate the effects of dry needling techniques in patients with knee osteoarthritis. Hence, the objective of this systematic review was to identify and critically review the evidence on the short-term and long-term effects of dry needling techniques in patients with knee osteoarthritis.

METHODS

Databases such as Pubmed, Cochrane library, and Scopus were searched from their inception to July 2019 for randomized controlled trials using dry needling as an active intervention against control/sham/placebo treatment in patients with knee osteoarthritis. The quality of the selected studies was analyzed using Cochrane tool for assessment of risk of bias.

RESULTS

Out of 247 studies, 9 studies were included in the review. The qualitative synthesis for myofascial trigger point dry needling showed contradictory results. The mean difference for periosteal stimulation was significant on pain and function immediately post-treatment (p < 0.00001). The mean difference for intramuscular electrical stimulation on pain was significant (p = 0.03), but marked heterogeneity was found among the studies.

CONCLUSION

Good quality studies on myofascial trigger point needling and intramuscular electrical stimulation are required to evaluate their effects in patients with knee osteoarthritis. The review demonstrates a moderate-quality evidence on the short-term effect of periosteal stimulation technique on pain and function in knee osteoarthritis. Future studies comparing the effects of various techniques of dry needling with different dosages and long-term follow up need to be conducted.

Effects of Adding Motor Imagery to Early Physical Therapy in Patients with Knee Osteoarthritis who Had Received Total Knee Arthroplasty: A Randomized Clinical Trial

OBJECTIVE

To investigate the effects of the inclusion of motor imagery (MI) principles into early physical therapy on pain, disability, pressure pain thresholds (PPTs), and range of motion in the early postsurgical phase after total knee arthroplasty (TKA).

METHODS

A randomized clinical trial including patients with knee osteoarthritis who have received TKA was conducted. Participants were randomized to receive five treatment sessions of either physical therapy with or without MI principles in an early postsurgical phase after a TKA (five days after surgery). Pain intensity (visual analog scale [VAS], 0-100), pain-related disability (short-form Western Ontario McMaster Universities Osteoarthritis Index [WOMAC], 0-32), pressure pain thresholds (PPTs), and knee range of motion were assessed before and after five daily treatment sessions by an assessor blinded to the subject's condition.

RESULTS

Twenty-four participants completed data collection and treatment. The adjusted analysis revealed significant group*time interactions for WOMAC (F = 17.29, P = 0.001, η2 = 0.48) and VAS (F = 14.56, P < 0.001, η2 = 0.45); patients receiving physiotherapy and MI principles experienced greater improvements in pain (Δ -28.0, 95% confidence interval [CI] = -43.0 to -13.0) and pain-related disability (Δ -6.0, 95% CI = -8.3 to -3.7) than those receiving physiotherapy alone. No significant group*time interactions for knee range of motion and PPTs were observed (all, P  > 0.30).

CONCLUSIONS

The application of MI to early physiotherapy was effective for improving pain and disability, but not range of motion or pressure pain sensitivity, in the early postsurgical phase after TKA in people with knee osteoarthritis.

The effect of innovative smartphone application on adherence to a home-based exercise programs for female older adults with knee osteoarthritis in Saudi Arabia: a randomized controlled trial

PURPOSE

To examine the effects of an Arabic smartphone application on adherence to home exercise programs (HEPs) and the effectiveness of mobile-based HEPs on pain, physical function, and lower-limb muscle strength among older women with knee osteoarthritis (OA).

MATERIALS AND METHODS

This randomised control trial (ClinicalTrials.gov: (NCT04159883) enrolled 40 women aged ≥50 years with knee OA who were randomised into the app group (experimental; n = 20) receiving HEPs using an Arabic smartphone application called "My Dear Knee", whereas the paper group (control; n = 20) receiving HEPs as hand-outs. Both groups had the same exercise program. Outcome measures were self-reported adherence, changes in the Arabic Numeric Pain Rating Scale, the Arabic version of the reduced Western Ontario, McMaster Universities Osteoarthritis Index-Physical Function subscale, and Five-Times Sit-To-Stand Test scores. All participants were assessed at baseline, at week 3 and week 6. Using completer-only analyses, the repeated measures ANOVA was used to compare the means of the outcome measures between the two groups.

RESULTS

At the end of week 6, the app group reported greater adherence to HEPs (p = .002) and significant reduction in pain (p = .015).

CONCLUSIONS

A smartphone application with motivational and attractive features could enhance adherence to HEPs in this patient cohort.IMPLICATIONS FOR REHABILITATIONOlder adults with knee OA may face many obstacles that prevent or limit their adherence to the prescribed HEP.Smart device apps supported with attractive and motivational features could be an effective strategy to enhance adherence to HEPs among older adults with knee OA.Using such remote technology appears to overcome the barriers that may limit the ability of older women to receive supervised physical therapy in a clinical setting.

A randomized controlled study for Yuanhu Zhitong dropping pills in the treatment of knee osteoarthritis

BACKGROUND

Knee osteoarthritis (KOA) is a common chronic disorder of knee and the leading cause of pain in the elderly with an overall prevalence of 50% in people over 60 years of age. This disease is an important factor affecting the quality of life of middle-aged and elderly people, and its main symptom is knee joint pain. Due to the pain, the knee joint activity function is limited, bringing great pain to patients, affecting their quality of life, effective prevention, and treatment of KOA is a modern medical problem.

METHODS

The 60 patients who met the inclusion criteria were randomly divided into the treatment group and the control group. In this study, single center, randomized control and equivalent clinical trial were used for treatment. The treatment group received Yuanhu Zhitong dropping pills within 4 weeks, and the control group received diclofenac sodium sustained-release capsule treatment within 4 weeks. The main measures were visual analogue scale (VAS), WOMAC osteoarthritis index score and gastrointestinal symptoms rating scale (GSRS).Secondary measures included biochemical markers and adverse reactions during treatment.

RESULT

The results of this trial will be published on the website of China Clinical Trial Registration Center (http://www.chictr.org.cn/searchprojen.aspx) and in peer-reviewed journals or academic conferences.

CONCLUSIONS

This study is to assess the efficacy and safety of Yuanhu Zhitong dropping pills for knee osteoarthritis (KOA).

REGISTRATION

PROSPERO (registration number ChiCTR1900024712).

Periosteal Electrical Dry Needling as an Adjunct to Exercise and Manual Therapy for Knee Osteoarthritis: A Multicenter Randomized Clinical Trial

Objectives:

To compare the effects of adding electrical dry needling into a manual therapy (MT) and exercise program on pain, stiffness, function, and disability in individuals with painful knee osteoarthritis (OA).

Materials and Methods:

In total, 242 participants (n=242) with painful knee OA were randomized to receive 6 weeks of electrical dry needling, MT, and exercise (n=121) or MT and exercise (n=121). The primary outcome was related-disability as assessed by the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index at 3 months.

Results:

Individuals receiving the combination of electrical dry needling, MT, and exercise experienced significantly greater improvements in related-disability (WOMAC: F=35.504; P<0.001) than those receiving MT and exercise alone at 6 weeks and 3 months. Patients receiving electrical dry needling were 1.7 times more likely to have completely stopped taking medication for their pain at 3 months than individuals receiving MT and exercise (OR, 1.6; 95% confidence interval, 1.24-2.01; P=0.001). On the basis of the cutoff score of ≥5 on the global rating of change, significantly (χ²=14.887; P<0.001) more patients (n=91, 75%) within the dry needling group achieved a successful outcome compared with the MT and exercise group (n=22, 18%) at 3 months. Effect sizes were large (standardized mean differences >0.82) for all outcome measures in favor of the electrical dry needling group at 3 months.

Discussion:

The inclusion of electrical dry needling into a MT and exercise program was more effective for improving pain, function, and related-disability than the application of MT and exercise alone in individuals with painful knee OA.

Level of Evidence:

Level 1b—therapy. Prospectively registered February 10, 2015 on www.clinicaltrials.gov (NCT02373631).