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Reumatologia/Rheumatology
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5/2013
vol. 51
 
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Original paper

A preliminary evaluation of the effects of comprehensive rehabilitation on emotional well-being and the quality of life in female patients with osteoarthritis

Ewa Gaszewska
,
Krystyna Księżopolska-Orłowska
,
Olga Krasowicz-Towalska
,
Marcin Kożuchowski
,
Teresa Sadura-Sieklucka

Reumatologia 2013; 51, 5: 342-347
Online publish date: 2013/10/31
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Introduction

Degenerative joint disease (also referred to as osteoarthritis [OA]) is a chronic non-inflammatory joint disorder of multifactor etiology and progressive nature. OA is the most common pathology of the joints, resulting from an imbalance between processes of regeneration and degeneration of articular cartilage and subcartilaginous tissue. OA manifests with joint stiffness, progressive loss of movement and impaired joint function [1–3].

Pain is the main symptom in OA; it intensifies during activities involving weight bearing and, initially, subsides after a period of rest. During the course of the disease, the pain becomes continuous and occurs also at night, which disturbs sleep. Chronic pain that increases with physical activity makes everyday activities harder, and often causes depressed mood [1, 2, 4].

Motor impairment and the associated pain affect the patient’s psychological and emotional well-being, which may lead to periods of depression, uneasiness, anxiety and keeps the patient in chronic distress. This affects the patients’ functioning within their family as well as their professional and social life. Inability to fulfill the tasks and expectations of the patients’ social and cultural environment keeps them in a state of chronic distress and lowers their quality of life [2, 4, 5].

The term “quality of life” encompasses both an objective health assessment and a subjective impression. The patients’ general condition, physical capacity, and fitness level that are subject to evaluation combine with the patients’ subjective impressions and experiences stemming from everyday life. The quality of life in the psychological realm depends on the individual’s condition, personality traits, needs, values, and environmental/situational factors, which constantly affect the individual and which are subject to his/her evaluation. This evokes specific emotions, whether motivating or demotivating, which may be a cause of distress. Every disease and its treatment are associated with some obstacles in meeting the person’s needs, which evokes emotional reactions, such as anxiety, denial, anger, depressed mood; also, it is a cause of discomfort and disturbs the feeling of happiness [4–8].

Emotions are strong feelings of clearly positive or negative quality that are preceded by an event and are directional in nature. The processes of development, duration, and decline of emotions are only to a small degree subject to our will. However, they are always conscious phenomena. According to Frida, the mechanisms that control these processes are based on experience and impose pre-specified responses to stimuli, as well as determining readiness for action. Emotions cannot be separated from other aspects of the human psyche, and are closely associated with our motivations, needs, attention, perception, information processing, and communication [9, 10].

Comprehensive rehabilitation is a form of integrated, intensive rehabilitation. This includes all possible kinesiotherapy techniques, selected physiotherapy procedures, hydrotherapy, and massages. Comprehensive rehabilitation also includes psychotherapy and, sometimes, if appropriate, social care, or occupational rehabilitation. Comprehensive rehabilitation involves the use of modern, evidence-based rehabilitation techniques, including conventional kinesiotherapy and manual therapy, especially soft tissue therapy techniques complemented with physical therapy in its conventional as well as its state-of-the-art forms such as systemic cryotherapy. Physical exercises and procedures combined into a comprehensive rehabilitation course are an integral part of treatment in patients with multiple degenerative lesions, and are typically the main treatment strategy in OA [11].

The objectives of this study are to evaluate the influence of the comprehensive rehabilitation on mental and emotional well-being and the quality of life in female patients with multiple musculoskeletal degenerative lesions in the movement system. Few fact-based studies on mental and emotional well-being have been undertaken so far. Studies on female patients suffering from osteoarthritis are carried out with the help of polls which supply objective information on their mental well-being. They help evaluate properly whether and how deeply various rehabilitation methods influence emotions and quality of life, understood not only as the physical condition but above all mental well-being.

The quality of life, which depends on health, is difficult to define due to the fact that this term is abstract. Levine defined quality of life as “the part of human life which applies directly to an individual being important simultaneously” [12].

Material and methods

Female patients with stable multiple-site OA were included in this study. This research program was approved by the Local Ethics Committee.

The group of 31 subjects with OA [i.e. 18 patients (group I) scheduled for exercises in the pool and 13 patients (group II) who underwent cryotherapy] was examined three times. All subjects underwent kinesiotherapy in the form of individual exercises, group exercises, and exercises using of special equipment. The mean age of patients in group I was 59.1 and in group II – 55.6 years. A total of 6.6 joints in group I patients and 7.2 joints in group II patients showed evidence of OA. The disease duration was longer in group I at 12.3 years, which correlated with the patients’ age, whereas disease duration in group II patients, who underwent cryotherapy, was 10.6 years (Table I).

The inclusion criteria were: patients meeting the ACR criteria diagnosis for OA; the presence of pain and dysfunction at 4 or more sites (a large joint or a set of small joints); patient age (35 to 65 years); written informed consent; psycho-physical ability to subjectively assess pain severity and complete standard questionnaires (SF-36 v. 2, David Goldberg’s General Health Questionnaire [GHQ-28]); and a lack of contraindications for comprehensive rehabilitation. Patients with advanced degenerative lesions of intervertebral and peripheral joints that required surgical treatment were excluded from the study. No female patients were given either oral steroid therapy or injections. Some patients were given to NSAIDs periodically. Patients had an opportunity to consult a psychologist specialist during the rehabilitation. None of them required psychological treatment.

All study subjects provided their informed consent (having read the objectives and methods of the study). Comprehensive rehabilitation was conducted for a period of 4 weeks. Depending on the applied rehabilitation techniques, the patients were divided into two groups: group I and group II [cryotherapy twice every day, including systemic cryotherapy (cryogenic chamber) and local cryotherapy for selected joints]. All study subjects underwent kinesiotherapy in the form of individual and group therapeutic exercises, as well as exercises using of special equipment. Each patient was examined three times: prior to treatment, 4 weeks into her rehabilitation course, and 3 months after its completion. Data from each patient’s medical history, medical records, and physical examination were recorded in a specially prepared case report form (CRF), complemented with the patient’s medical records. The following parameters were evaluated: subjective pain severity at baseline before initiating rehabilitation and subsequently for a period of 4 weeks (on each of the 20 procedure days), and the patient’s general condition according to GHQ-28 and SF-36 v. 2 questionnaires.

The General Health Questionnaire (GHQ-28) was used in this study to determine mental dysfunctions in patients with a chronic condition, such as OA.

The SF-36 questionnaire evaluates the physical and mental health status. The SF-36 enables one to find the differences resulting from the use of various therapies in patients with a particular disorder and provides information on the patient’s general condition in eight scales: physical functioning, physical role functioning, bodily pain, general health perceptions, vitality (energy and fatigue), social role functioning, emotional role functioning, and mental health (mental suffering).



Statistical analysis



The statistical analysis was conducted with SAS 9.2. Values of measurable parameters of normal distribution were presented as means and standard deviations. Measurable parameters of irregular distribution were presented as medians and interquartile ranges. The Kolmogorov-Smirnov test was used to test the distribution of quantitative variables against normal distribution. The paired and unpaired Student’s t tests (for two independent and two dependent samples, respectively) were used to compare the statistical significance of differences between means. The non-parametric Mann-Whitney test (for two independent samples) or the Wilcoxon rank-sign test (two dependent samples) was used to estimate the statistical significance of differences between medians. The significance level of   0.05 was used to test the null hypothesis. Two-sided tests were used.

Results

The results of a pain assessment questionnaire demonstrated a comparable drop in pain severity (%) in both groups (Fig. 1). Patients from the cryotherapy group experienced aggravated pain on day 2 and 3, which subsequently gradually subsided, reaching a plateau after day 17. Patients from the hydrotherapy group experienced an initial reduction in pain and their pain severity also stabilized starting on day 17. Both groups showed a comparable decrease in pain severity (by 60% vs. baseline). No significant differences in pain reduction between groups I and II were observed after 4 weeks of rehabilitation.

Based on the four subscales of GHQ-2, the following parameters were evaluated: A – somatic symptoms; B – anxiety, insomnia; C – functional disorders/social dysfunction; D – depressive symptoms. In both groups, physical symptoms subsided considerably, with the improvement clearly persisting after 3 months of therapy completion. Moreover, group II patients reported a continued reduction in anxiety at 3 months. Group II (systemic cryotherapy) patients experienced a clear, statistically significant improvement in insomnia, their feeling of unhappiness considerably decreased, with continuous – though less dynamic – improvement at 3 months after therapy completion. No significant differences were observed in group I. The feeling of social inadequacy decreased in both groups, with a clearer and more significant improvement noted in group I. The improvement observed in both groups 3 months following therapy was still present but not at the same level as that observed immediately following therapy. Patients of either group exhibited no problems with their sense of identity. A slight difference in assessments indicates that rehabilitation helps enhance the sense of identity. According to scale D results at screening, the study population showed no mental disorders. The study subjects’ general emotional state was evaluated based on pooled GHQ-28 results (scales A, B, C, D). Following rehabilitation, OA patients from both groups exhibited improvement in psychophysical and general health scores. Group I clearly demonstrated direct post-therapy effects, with a decrease in improvement (although not to the baseline level) observed after 3 months. Conversely, group II experienced a significant and sustained improvement in health (Fig. 2).

The SF-36 yielded general condition data from 8 scales. The physical health measure (including physical functioning, physical role functioning, and pain scores) remained at the same level with a tendency to deteriorate after 3 months. Conversely, the perceived mental health measure (including vitality, social functioning, emotional role functioning scores) increased (in group I – significantly) directly after the end of therapy; however it decreased slightly after 3 months without dropping back to baseline values. The changes in none of the discussed parameters were statistically significant. It is worth emphasizing that there was no evidence of mental or behavioral disturbances in the given group (Fig. 3).

Discussion

Osteoarthritis (OA) has been affecting more and more people. Thus, it is important to find a way to combat not only physical dysfunction, but also poor mental condition of OA patients. The issues of patients’ pain and poor motor performance as well as evaluation of patients’ physical condition are currently being addressed. An analysis of the results confirmed beneficial effects of rehabilitation in the treatment of spinal and peripheral OA, which was consistent with previously published results [13]. A wide spectrum of physical procedures, such as ultrasounds, magnetic fields, laser therapy, electrotherapy, and local cryotherapy in combination with kinesiotherapy, have been used [14–19]. Systemic cryotherapy plays a noteworthy role in improving motor dysfunction, particularly in pain alleviation. Systemic cryotherapy in combination with kinesiotherapy helped substantially reduce pain and improve the psychophysical status of study subjects, which was observed both 4 weeks into the course of rehabilitation and 3 months after its conclusion. The fact that cryotherapy has been considered to be a therapeutic process by other authors [19–22] confirms its positive impact on the general quality of life. Both study groups showed a reduction in pain intensity by 60% of the baseline level, which has been shown in a subjective pain assessment chart and confirmed by SF-36 results. Both studied therapies are effective tools in the fight against pain. Rehabilitation with aquatic exercises brings improvement in the performance status of patients with musculoskeletal degenerative lesions, which has been confirmed by the results of other studies [13, 18, 19].

The presence of pain and physical dysfunction is inseparably associated with the patient’s emotional and mental status, which is consistent with the results of the GHQ-28, where an improvement in somatic symptoms resulted in an improvement in psychological state of the study subjects. The use of the GHQ-28 in studies evaluating the effects of the psyche on the quality of life confirms the questionnaire’s usefulness in research studies [20–24].

Deterioration of somatic symptoms causes an increase in psychological anxiety that the patient experiences. OA-related symptoms are associated with the development of unpleasant feelings of anxiety, uncertainty, and magnified insomnia. We observed that physical symptoms, including pain, were noticeably reduced after rehabilitation. A somatic condition, such as OA magnifies feelings of unhappiness; moreover, it stands in the way of reaching a complete contentment with life and meeting one’s needs and desires. Group II patients experienced a considerable improvement involving a substantial reduction in their anxiety and sleeplessness, with this reduction still continuing, though less rapidly, 3 months after therapy. The improvement observed in group I was lesser. Alleviation of somatic symptoms reduces anxiety, eliminates insomnia and, as a consequence, significantly improves the quality of life. A similar association was suggested in other studies using the GHQ-28 [23–25]. Those affected by a somatic condition associated with pain and musculoskeletal dysfunction experience difficulties in normal functioning in all the aspects of social life. The feeling of social inadequacy decreased in both study groups; this time, a more pronounced and statistically significant reduction was observed in group I. Aquatic exercises mentioned by other authors help improve physical fitness, and alleviate anxiety and insomnia [18, 19].

Neither group exhibited problems with identity; there were no disturbances in awareness of one’s own characteristics or one’s separateness. A slight difference in assessments indicates that rehabilitation helps enhance the sense of identity. Also, no mental disorders were detected in the study population [8, 10].

An analysis of the SF-36 demonstrates an improvement, though non-significant, in all evaluated areas. This was observed mainly in terms of pain severity, emotional role functioning and is expressed in the form of improved psychological well-being. These findings are consistent with those from other studies on the effects of rehabilitation on improving the quality of life in OA patients [16, 18, 19].

There is a clear analogy between the results of the GHQ-28 and those of the SF-36 in the mental health measure of the latter, which comprises vitality, social functioning and emotional role functioning scores. Improvement, which was statistically significant in group I, was observed immediately after completion of therapy and, 3 months later, the improvement diminished slightly without reaching the baseline scores. It is noteworthy that no group demonstrated any manifestations of mental or behavioral disorders.

In summary, the psychophysical status of study subjects from both groups as well as the subjects’ impression of general health improved after the rehabilitation. The previous preliminary studies show beneficial effects of comprehensive rehabilitation on the female patients’ psychophysical status. Further detailed studies on larger group of female patients are needed to confirm clearly the beneficial rehabilitation effect on the female patients’ psychophysical status.

Conclusions

• Comprehensive rehabilitation in patients with OA has a beneficial effect on the patients’ psychological well-being and the quality of life.

• Both cryotherapy and aquatic exercises have an impact on considerable pain reduction to a comparable extent and at comparable rates, on average by 60% of the baseline level. An improvement in pain severity was associated with improved psychological and emotional well-being of the patients.

• The greatest improvement involved alleviation of psychological anxiety, diminished feelings of unhappiness and social inadequacy in both study groups, with greater improvement observed in the cryotherapy group.

• Our results confirm the association between female osteoarthritis patients’ psychological well-being and their somatic health.



Authors declare no conflict of interest.

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Copyright: © 2013 Narodowy Instytut Geriatrii, Reumatologii i Rehabilitacji w Warszawie. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.






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