Lifestyle changes in the management of osteoarthritis

Efficacy and safety of focused low-intensity pulsed ultrasound versus pulsed shortwave diathermy on knee osteoarthritis: a randomized comparative trial

The aim of this study was to compare the efficacy and safety of focused low-intensity pulsed ultrasound (FLIPUS) with pulsed shortwave diathermy (PSWD) in subjects with painful knee osteoarthritis (OA). In a prospective randomized trial, 114 knee OA patients were randomly allocated to receive FLIPUS or PSWD therapy. The primary outcome was the change from baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) total scores. Secondary outcomes included the numerical rating scale (NRS) for pain assessment, time up and go (TUG) test, active joint range of motion (ROM) test, and Global Rating of Change (GRC) scale. Data were collected at baseline, 12 days, 12 weeks and 24 weeks. Patients receiving FLIPUS therapy experienced significantly greater improvements in the WOMAC total scores than patients receiving PSWD therapy at 12 days (mean difference, - 10.50; 95% CI - 13.54 to - 7.45; P = 0.000). The results of the NRS, TUG test, ROM test and GRC scale showed that participants treated with FLIPUS reported less pain and better physical function and health status than those treated with PSWD at 12 days (P = 0.011, P = 0.005, P = 0.025, P = 0.011, respectively). Furthermore, patients in the FLIPUS group showed significant improvements in the WOMAC total scores and NRS scores at 12 weeks (mean difference, - 7.57; 95% CI - 10.87 to - 4.26; P = 0.000 and - 1.79; 95% CI - 2.11 to - 1.47, respectively) and 24 weeks (mean difference, - 6.96; 95% CI - 10.22 to - 3.71; P = 0.000 and - 1.37; 95% CI - 1.64 to - 0.96; P = 0.000, respectively) of follow-up. There were no adverse events during or after the interventions in either group. This study concluded that both FLIPUS and pulsed SWD are safe modalities, and FLIPUS was more effective than PSWD in alleviating pain and in improving dysfunction and health status among subjects with knee OA in the short term.Trial registration: Chinese Clinical Trial Registry, ChiCTR2000032735. Registered 08/05/2020, http://www.chictr.org.cn/showproj.aspx?proj=53413 .

Low-Grade Inflammation in the Pathogenesis of Osteoarthritis: Cellular and Molecular Mechanisms and Strategies for Future Therapeutic Intervention

Osteoarthritis (OA) is a musculoskeletal disease characterized by cartilage degeneration and stiffness, with chronic pain in the affected joint. It has been proposed that OA progression is associated with the development of low-grade inflammation (LGI) in the joint. In support of this principle, LGI is now recognized as the major contributor to the pathogenesis of obesity, aging, and metabolic syndromes, which have been documented as among the most significant risk factors for developing OA. These discoveries have led to a new definition of the disease, and OA has recently been recognized as a low-grade inflammatory disease of the joint. Damage-associated molecular patterns (DAMPs)/alarmin molecules, the major cellular components that facilitate the interplay between cells in the cartilage and synovium, activate various molecular pathways involved in the initiation and maintenance of LGI in the joint, which, in turn, drives OA progression. A better understanding of the pathological mechanisms initiated by LGI in the joint represents a decisive step toward discovering therapeutic strategies for the treatment of OA. Recent findings and discoveries regarding the involvement of LGI mediated by DAMPs in OA pathogenesis are discussed. Modulating communication between cells in the joint to decrease inflammation represents an attractive approach for the treatment of OA.

Association between Kinesiophobia and Knee Pain Intensity, Joint Position Sense, and Functional Performance in Individuals with Bilateral Knee Osteoarthritis

In current clinical practice, fear of movement has been considered a significant factor affecting patient disability and needs to be evaluated and addressed to accomplish successful rehabilitation strategies. Therefore, the study aims (1) to establish the association between kinesiophobia and knee pain intensity, joint position sense (JPS), and functional performance, and (2) to determine whether kinesiophobia predicts pain intensity, JPS, and functional performance among individuals with bilateral knee osteoarthritis (KOA). This cross-sectional study included 50 participants (mean age: 67.10 ± 4.36 years) with KOA. Outcome measures: The level of kinesiophobia was assessed using the Tampa Scale of Kinesiophobia, pain intensity using a visual analog scale (VAS), knee JPS using a digital inclinometer, and functional performance using five times sit-to-stand test. Knee JPS was assessed in target angles of 15°, 30°, and 60°. Pearson’s correlation coefficients and simple linear regressions were used to analyze the data. Significant moderate positive correlations were observed between kinesiophobia and pain intensity (r = 0.55, p < 0.001), JPS (r ranged between 0.38 to 0.5, p < 0.05), and functional performance (r = 0.49, p < 0.001). Simple linear regression analysis showed kinesiophobia significantly predicted pain intensity (B = 1.05, p < 0.001), knee JPS (B ranged between 0.96 (0° of knee flexion, right side) to 1.30 (15° of knee flexion, right side)), and functional performance (B = 0.57, p < 0.001). We can conclude that kinesiophobia is significantly correlated and predicted pain intensity, JPS, and functional performance in individuals with KOA. Kinesiophobia is a significant aspect of the recovery process and may be taken into account when planning and implementing rehabilitation programs for KOA individuals.

Therapeutic Exercise and Conservative Injection Treatment for Early Knee Osteoarthritis in Athletes: A Scoping Review

Background and Objectives: Recent evidence highlighted a higher prevalence of knee osteoarthritis (kOA) among young and former ex-professional athletes. Although the practice of a highly demanding sport is considered a predisposing factor for the knee joint cartilage degeneration, articular cartilage seems to positively respond to a moderate load increase. We aim to investigate recent evidence on the conservative management of early kOA in athletes, with a particular emphasis on therapeutic exercise and injection treatment, in order to highlight whether there are any indications that can influence clinical and rehabilitation practice. Materials and Methods: A scoping review was conducted, screening MEDLINE and PEDro databases for studies published over the past twenty years on the topic. Studies in English, with accessible abstracts, were included in the review. The PICO framework was used (P—patient: athletes, I—Intervention: conservative treatment with therapeutic exercise or injection therapies, C—Comparison: not needed, O—Outcomes: clinical outcomes). Clinical trials, randomized controlled trials, and longitudinal studies were considered. Results: Four studies were finally included in the review. Therapeutic exercise seems to have beneficial effects on prevention of cartilage degeneration, on pain reduction, and on physical function enhancement. On the other hand, in mild to moderate stages of kOA the intra-articular viscosupplementation with Hyaluronic Acid showed a medium to long-term improvement in joint pain and function. The Platelet Rich Plasma treatment also showed a significant improvement in pain and function up to 12 months. Conclusions: Despite the heterogeneity of the studies considered, a multimodal treatment combining therapeutic exercise and moderate aerobic activity (such as running) should be indicated to prevent kOA development. In cases of symptomatic kOA it may be indicated to add minimally invasive injection therapy that seems to contribute to the improvement of motor function and symptomatology.

Do Patients With Osteoarthritis get Weight Loss Counseling?

INTRODUCTION

Osteoarthritis (OA) is a degenerative disease of joints which if untreated can lead to a permanent disability of joints. Obesity plays an important role in the morbidity of OA. Since there is no curative treatment for OA, several researches focusing on nonpharmacological intervention for OA have come forth. Triad of education, exercise, and weight loss has been gaining popularity as a first-line nonpharmacological treatment for OA. This article measures the number of OA patients, irrespective of age and gender, who have received weight-loss counseling from their physicians and it also studies patients' willingness to lose weight after being counseled.

METHODOLOGY

A cross-sectional study was conducted from 10th June 2020 to 10th July 2020. Diagnosed cases of OA were included and their consent was taken. A self-administered questionnaire was used which included questions asking if they have ever received weight-loss counseling and if they will try to lose weight on being advised by their physician. Data were collected from the participants using google forms and analyzed using SPSS-22.

RESULTS

Out of 199 OA patients included in our study, only 28 (14%) participants received weight loss and exercise counseling from their physicians. A positive response was observed in 175 (87.9%) participants out of 199 who reported that they would exercise and practice a healthy lifestyle to lose weight if they were advised properly.

CONCLUSION

Results of our study showed that the total number of OA patients receiving advice from their treating physician regarding weight loss is less. However, the majority of the patients were willing to exercise and control their weight if advised properly by their physician.

Effects of two different aquatic exercise trainings on cardiopulmonary endurance and emotional status in patients with knee osteoarthritis

BACKGROUND

Aquatic exercises are often recommended for people with osteoarthritis (OA), however, there is a lack of evidence about the effects of these exercises.

OBJECTIVES

The purpose of this study was to investigate the effects of two different aquatic exercise trainings on cardiopulmonary endurance and emotional status in patients with knee osteoarthritis.

METHODS

Eighty-nine patients who had been diagnosed with knee osteoarthritis were divided into three groups as two different aquatic exercise training groups (only lower extremity training vs. lower extremity + upper extremity and trunk exercises) or the control group. All groups have received the conventional therapy which consisted of hotpack, ultrasound, transcutaneous electrical nerve stimulation (TENS), and home exercises. Six-minute walk test (6MWT) and the Hospital Anxiety and Depression Scale (HAD) were used for assessing cardiopulmonary endurance and emotional status, respectively.

RESULTS

Following the treatment, all groups improved in terms of systolic blood pressure, walking distance and total HAD scores. Group 1 showed additional improvements in diastolic blood pressure, heart rate and perceived exertion, while Group 2 showed additional improvements only in perceived exertion. Greater changes before and after the treatment in diastolic blood pressure at rest and following 6MWT, perceived exertion following 6MWT, walking distance, HAD depression scores and HAD anxiety scores were observed in Group 1.

CONCLUSIONS

Exercise therapy consisting of only lower extremity exercises in water might be more effective in improving exercise capacity and depression levels in comparison to upper extremity and trunk added exercises or conventional physical therapy.

The effects of two different water exercise trainings on pain, functional status and balance in patients with knee osteoarthritis

METHODS

Eighty-nine female patients who had been diagnosed with knee osteoarthritis were divided into three groups as two experimental and a control group. All groups have received the standard therapy (hotpack, ultrasound, TENS). Both experimental groups underwent water exercise program. While Group 1 performed lower extremity exercise training, Group 2 performed upper extremity exercises as well as trunk exercises in addition to the lower extremity exercises used in the Group 1. The third group was control group who did not receive water exercise treatment. The pain severity was measured with the Visual Analog Scale (VAS). Functional status was assessed by using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Balance was evaluated by using the single leg stance test.

RESULTS

The change in VAS scores from pre-to post-treatment was highest in Group 1 (p < 0.001). On the other hand, the change in WOMAC pain, stiffness and physical function values from pre-to post-treatment was highest in Group 2 (p < 0.001).

DISCUSSION

Water exercise training was found to be beneficial in the treatment of knee osteoarthritis in both groups. Moreover, adding upper extremity and trunk exercises to the lower extremity exercises was found to be more effective for improving the function.

Nutrition Review: Diet, Nutrition, and Osteoarthritis

Despite abundant lay claims regarding diet, nutrients, and osteoarthritis (OA), scientific study on these relationships is in its early stages. The strongest risk factor for OA, particularly of the knee, is overweight and obesity. Initial weight loss studies for the treatment of OA have shown promising results, but longer-term trials are needed. Potential roles of specific nutrients in OA prevention and treatment are under study, but to date, results are somewhat less clear. The ratio of dietary omega-6 to omega-3 fatty acids has been proposed to be related to OA because they are precursors of proinflammatory and anti-inflammatory eicosanoids and cytokines, respectively. However, human data are lacking to substantiate this relationship. Low serum levels of some vitamins, such as C and D, have been associated with OA in epidemiological research, but much more work must be conducted to understand the roles of these and other vitamins in OA prevention and treatment. Biological plausibility exists for the protective properties of antioxidants against OA, so continued research to assist in making specific dietary recommendations with respect to these is needed for OA patients. As the study of diet, nutrients, and OA evolves, it is prudent for practitioners to stay abreast of the research so that they can address patients' questions and recommend diets with adequate omega-3 fatty acids, vitamins, minerals, and antioxidants while avoiding megadoses.

How do middle-aged patients conceive exercise as a form of treatment for knee osteoarthritis?

PURPOSE

To describe conceptions, as registered by a semi-structured interview, of exercise as treatment among sixteen middle-aged patients with moderate to severe knee osteoarthritis.

METHOD

Sixteen patients (aged 39-64) with symptomatic, radiographic knee osteoarthritis and previous participants in an exercise intervention, were interviewed. The qualitative data obtained were analysed using phenomenographic approach.

RESULTS

Four descriptive categories containing 13 conceptions emerged: Category 1) To gain health included five conceptions; to experience coherence, to experience well-being, to be in control, to experience improved physical functioning, to experience symptom relief; 2) To become motivated included three conceptions; to experience inspiration, to be prepared to persevere, to experience the need to exercise; 3) To experience the need for support included three conceptions; to have structure, to receive guidance, to devote time; 4) To experience resistance included two conceptions; to hesitate, to deprecate.

CONCLUSION

Patients with knee osteoarthritis and knee pain, previously participating in exercise intervention, are aware of the health benefits of exercise, but have many doubts and concerns about exercise as treatment. These aspects should be considered when designing patient information and treatment programmes. Furthermore, a hesitative and resistive perception of exercise as a concept could have major influences on the implementation of health programmes.

Nutrition Review: Diet, Nutrition, and Osteoarthritis

Despite abundant lay claims regarding diet, nutrients, and osteoarthritis (OA), scientific study on these relationships is in its early stages. The strongest risk factor for OA, particularly of the knee, is overweight and obesity. Initial weight loss studies for the treatment of OA have shown promising results, but longer-term trials are needed. Potential roles of specific nutrients in OA prevention and treatment are under study, but to date, results are somewhat less clear. The ratio of dietary omega-6 to omega-3 fatty acids has been proposed to be related to OA because they are precursors of proinflammatory and anti-inflammatory eicosanoids and cytokines, respectively. However, human data are lacking to substantiate this relationship. Low serum levels of some vitamins, such as C and D, have been associated with OA in epidemiological research, but much more work must be conducted to understand the roles of these and other vitamins in OA prevention and treatment. Biological plausibility exists for the protective properties of antioxidants against OA, so continued research to assist in making specific dietary recommendations with respect to these is needed for OA patients. As the study of diet, nutrients, and OA evolves, it is prudent for practitioners to stay abreast of the research so that they can address patients' questions and recommend diets with adequate omega-3 fatty acids, vitamins, minerals, and antioxidants while avoiding megadoses.

The management of osteoarthritis in the obese patient: practical considerations and guidelines for therapy

Obesity and osteoarthritis (OA) co-exist in an increasing part of the population. The two diseases intertwine in several ways. The evolution in the population shows a tendency towards deterioration of both by increasing general age and weight. The two diseases share pathogenetic features and the development of one disease increases the risk of the other and may be the onset of a vicious circle. There is a link between treatments of these two diseases as well. There is now solid (gold) evidence that by treating effectively the obesity of patients with co-occurring OA, the functional status is dramatically ameliorated; the short-term results are equal to that of a joint replacement. The long-term efficacy of a weight loss remains to be shown. OA is definitely one of many diseases in which obesity must be taken seriously into account when planning a correct treatment of patients. The regimens used in the controlled studies of such patients are reviewed and it may be concluded that practical aspects of the dietary intervention in obese patients with OA are not different from general recommendations.

Weight loss: the treatment of choice for knee osteoarthritis? A randomized trial

OBJECTIVE

We wanted to assess the effect of rapid diet-induced weight loss on the function of obese, knee osteoarthritis (OA) patients.

METHODS

Eighty patients with knee OA, 89% women (n=71), were recruited. Mean (SD) body-mass index (BMI) was 35.9 (5.1) kg/m(2) and age 62.6 (11.1) years. Patients were randomized to either a low-energy diet (LED 3.4MJ/day), or a control diet (5MJ/day). The LED group had weekly dietary sessions, whereas the control group was given a booklet describing weight loss practices. Changes in body weight and body composition were examined as independent predictors of changes in knee OA symptoms. Symptoms were monitored by the Western Ontario and McMaster Universities' (WOMAC) OA index.

RESULTS

The LED and control group lost a mean (SE) of 11.1 (0.6)% and 4.3 (0.6)%, respectively, with a mean difference being 6.8% (95% confidence interval (CI): 5.5 to 8.1%; P<0.0001). The decrease in body fat percent was higher in the LED group, 2.2% (1.5 to 3.0%; P<0.0001). The total WOMAC index improved in the LED group (P<0.0001), but not in the control group (P=0.12), mean difference: -219.3mm (-369.2 to -69.4mm; P=0.005). The 'Number Needed to Treat (NNT)' to ensure an improvement in WOMAC>/=50% was 3.4 (2.1 to 8.8) patients. Changes in total WOMAC index were best predicted by the reduction of body fat percent, with a 9.4% (4.8 to 13.9%) improvement in WOMAC for each percent of body fat reduced (P=0.0005).

CONCLUSIONS

In our patients with knee OA, a weight reduction of 10% improved function by 28%. LED might be of advantage to control diet because of the rapidity of weight loss and a more significant loss of body fat.

Nonpharmacologic management of osteoarthritis

Several nonpharmacologic interventions for osteoarthritis are in different stages of development, investigation, and application. Such interventions capitalize on current knowledge of the causes of symptoms, disease progression, and disability in patients with osteoarthritis. Many nonpharmacologic interventions are low in cost and incorporate self-management approaches or home-based activities and, as such, may ultimately have substantial public health impact. Recent studies and reviews of exercise, weight loss, education, inserts, footwear, bracing, therapeutic ultrasound, acupuncture, and pulsed electromagnetic field therapy will be highlighted in this review. For many of these interventions, further investigation will be necessary to define their place in the management of osteoarthritis.