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AIM: We validated patientpain drawing (PPD) in establishing the diagnosis of chronic anterior compartment syndrome (CACS) in patients with exercise-induced leg pain. METHODS: The study comprised 477 consecutive patients, all suspected of having CACS. The diagnosis was based on the patient's history, a thorough clinical examination and measurements of intramuscular pressure (IMP) following an exercise test. Patients completed a PPD before their hospital visit. Two independent orthopaedic surgeons diagnosed the causes of leg pain based only on the PPD at least 1 year after admission. Based on the results of diagnostic tests, the patients were divided into three groups: CACS (n=79), CACS with comorbidity (n=89) and non-CACS (n=306). RESULTS: The sensitivity of the PPD to identify CACS correctly was 67% (observer 1) and 75% (observer 2). The specificity was 65% and 54%, respectively. The interobserver agreement (n=477) was 80%, and the kappa value was 0.55. The interobserver agreement was 77%, and the kappa value was 0.48 among 168 CACS patients with or without comorbidity. The interobserver agreement was 85%, and the kappa value was 0.56 in 79 CACS, and CACS was correctly diagnosed in 79% (observer 1) and 82% (observer 2). The test-retest showed the same results for the two observers, with an intraobserver agreement of 84%, while the test-retest reliability coefficient was 0.7. Comorbidity was found in 53% of CACS patients. CONCLUSION: PPD might be a valuable instrument in diagnosing the causes of exercise-induced leg pain. It is useful in identifying CACS with and without comorbidity.

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BACKGROUND: Near-infrared spectroscopy measures muscle oxygen saturation (StO2) in the skeletal muscle and has been proposed as a noninvasive tool for diagnosing chronic anterior compartment syndrome (CACS). The purpose of this study was to investigate the diagnostic value of changes in StO2 during and after exercise in patients with CACS. METHODS: The study comprised 159 consecutive patients with exercise-induced leg pain. Near-infrared spectroscopy was used to measure StO2 continuously before, during, and after an exercise test. One minute post-exercise, intramuscular pressure was recorded in the same muscle. The cohort was divided into patients with CACS (n = 87) and patients without CACS (n = 72) according to the CACS diagnostic criteria. Reoxygenation at rest after exercise was calculated as the time period required for the level of muscular StO2 to reach 50% (T50), 90% (T90), and 100% (T100) of the baseline value. RESULTS: The lowest level of StO2 during exercise was 1% (range, 1% to 36%) in the patients with CACS and 3% (range, 1% to 54%) in the patients without CACS. The sensitivity was 34% and the specificity was 43% when an StO2 level of ≤8% at peak exercise was used to indicate CACS. The sensitivity and the specificity were only 1% when an StO2 level of ≤50% at peak exercise was used to indicate CACS. The time period for reoxygenation was seven seconds (range, one to forty-three seconds) at T50, twenty-eight seconds (range, seven to seventy-seven seconds) at T90, and forty-two seconds (range, seven to 200 seconds) at T100 in the patients with CACS and ten seconds (range, one to forty-nine seconds) at T50, thirty-two seconds (range, four to 138 seconds) at T90, and forty-eight seconds (range, four to 180 seconds) at T100 in the patients without CACS. When thirty seconds or more at T90 was set as the cutoff value for a prolonged time for reoxygenation, indicating a diagnosis of CACS, the sensitivity was 38% and the specificity was 50%. CONCLUSIONS: Changes in muscle oxygen saturation during and after an exercise test that elicits leg pain cannot be used to distinguish between patients with CACS and patients with other causes of exercise-induced leg pain.

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To evaluate a forward-sensing fiber-optic pressure technique for recording of intramuscular pressure (IMP) in the human leg and investigate factors that may influence IMP measurements used in diagnosing compartment syndromes. IMP in the tibialis anterior muscle was recorded simultaneously by a fiber-optic technique and needle-injection technique in 12 legs of 7 healthy subjects. Both measurement catheters were placed in parallel with the muscle fibers to the same depth, as verified by sonography. IMP recordings were performed at rest before, during and after applying a model of abnormally elevated IMP (simulated compartment syndrome). IMP was elevated by venous obstruction induced by a thigh tourniquet of a casted leg. IMP was also measured during injections of 0.1 ml of saline into the muscle through the catheters. IMP at baseline was 5.1 (SD = 2.6) mmHg measured with the fiber-optic technique and 7.1 (SD = 2.5) mmHg with the needle-injection technique (p < 0.001). It increased to 48.5 (SD = 6.9) mmHg and 47.6 (SD = 6.6) mmHg respectively, during simulated compartment syndrome. IMP increased significantly following injection of 0.1 ml of saline, measured by both techniques. It remained increased 1 min after injection. The fiber-optic technique was able to record pulse-synchronous IMP oscillations. The fiber-optic technique may be used for IMP measurements in a muscle with both normal and abnormally elevated IMP. It has good dynamic properties allowing for measurement of IMP oscillations. Saline injection used with needle-injection systems to ensure catheter patency compromises IMP readings at least one minute after injection.

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BACKGROUND: Disability due to acute low back pain (ALBP) runs parallel with distress and physical inactivity. If low back pain persists, this may lead to long-term sick leave and chronic back pain. This prospective randomized study evaluated the effect on physical activity and on the course of ALBP of two different treatment advices provided in routine care. METHODS: Ninety-nine patients with acute severe LBP examined within 48 h after pain onset were randomized to the treatment advices "Stay active in spite of pain" (stay active group) or "Adjust activity to the pain" (adjust activity group). Pedometer step count and pain intensity (Numeric Rating Scale, NRS, 0-10) were followed daily during seven days. Linear mixed modeling were employed for statistical analyses. RESULTS: The step count change trajectory showed a curvilinear shape with a steep initial increase reaching a plateau after day 3 in both groups, followed by an additional increase to day 7 in the stay active group only. At day 1, the step count was 4560 in the stay active group compared to 4317 in adjust activity group (p = 0.76). Although there were no statistical differences between the two groups in the parameters describing the change trajectory for step count, the increase in step count was larger in the stay active group. At day 7 the step count was 9865 in the stay active group compared to 6609 in the adjust activity group (p = 0.008). The pain intensity (NRS) trajectory was similar in the two groups. Between day 1 and day 7 it decreased linearly from 5.0 to 2.8 in the stay active group (p < 0.001), and from 4.8 to 2.3 in the adjust activity group (p < 0.001). CONCLUSIONS: Patients with acute severe LBP advised to stay active in spite of the pain exhibited a considerable more active behavior compared to patients adjusting their activity to pain. This result confirms compliance to the treatment advice as well as the utility of the stay active advice to promote additional physical activity for more health benefits in patients with ALBP. There was minimal effect of the treatment advice on the course of ALBP. TRIAL REGISTRATION: ClinicalTrials.gov (NCT02517762).

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BACKGROUND: Patients with compartment syndromes have elevated intramuscular pressure (IMP) due to increased volume in the affected muscle. However, the accuracy of IMP as a parameter in diagnosing chronic compartment syndrome has been questioned. It has been observed that arterial pulsations create oscillations in the IMP in patients with abnormally elevated IMP. The amplitude of the IMP oscillations appears to be related to a pathogenic mechanism of elevated IMP. Therefore, the purpose of the present study was to investigate the relation between the amplitude of pulse-synchronous IMP oscillations and the absolute level of IMP with a high-end fiber-optic system in a human experimental model of abnormally elevated IMP (simulated compartment syndrome) of the leg. The hypothesis that the amplitude of the IMP oscillations is correlated to the absolute level of IMP was tested. METHODS: IMP was measured at rest in the anterior tibial muscle in 12 legs of 7 healthy subjects (4 females and 3 males) with a mean age of 28 (range 23-38) years. The subject lay supine with his/her heel placed in a footrest. The foot was kept in a neutral position to avoid biased IMP readings. Measurements were performed at baseline and during 10 minutes with a model of abnormally elevated IMP (simulated compartment syndrome) applied. The abnormally elevated IMP was created by venous obstruction induced by a thigh tourniquet (65 mmHg) of a casted leg. Placement of the pressure-recording catheter was verified by sonography. RESULTS: The IMP increased from 4.7 (SD = 1.8) mmHg at baseline to 48.6 (SD = 7.1) mmHg when the model of elevated IMP was applied. The amplitude of the pulse-synchronous oscillations was undetectable at baseline. It increased to 3.9 (SD = 1.4) mmHg with increasing IMP when the model was applied. The amplitude of the oscillations showed a positive correlation (r = 0.59) with the absolute level of IMP. CONCLUSIONS: The amplitude of the pulse-synchronous IMP oscillations is correlated with the absolute level of IMP during abnormally elevated IMP. The oscillations of IMP may therefore be an additional parameter assuring the abnormally elevated IMP in the diagnosis of compartment syndromes.

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BACKGROUND: Transcutaneous electrical stimulation of the common peroneal nerve may be an additional clinical tool for enhancing venous return by active and passive mechanisms of muscle action in the immobilized leg. PURPOSES: To determine the effects of electrical stimulation of the common peroneal nerve to (1) produce force during isometric ankle joint dorsiflexion, and (2) alter muscle oxygenation and blood volume in the resting human leg. METHODS: A novel electrical stimulator was applied to 28 legs of 14 healthy subjects. The force during isometric ankle joint dorsiflexion and myoelectric responses produced by stimulation-induced leg muscle contractions were investigated. Muscle oxygen saturation, blood volume and deoxygenated haemoglobin in the tibialis anterior and medial gastrocnemius muscles were measured by near-infrared spectroscopy during venous stasis (40 mmHg thigh tourniquet), with or without electrical stimulation. Results. The force produced during ankle joint dorsiflexion at the maximal stimulation intensity was 2.25 N (0.02-14.14) in the resting leg. Changes in muscle oxygen saturation during venous stasis, with or without electrical stimulation, were similar. Electrical stimulation during venous stasis caused 4-9% and 0.2-6% less increase in total muscle blood volume and deoxygenated hemoglobin compared to venous stasis alone. CONCLUSIONS: Nerve stimulation with a newly developed device partly counteracts increases in muscle blood volume and deoxygenated hemoglobin of the resting leg during venous stasis. CLINICAL RELEVANCE: The device stimulates active and passive mechanisms of leg muscle action that seems to enhance venous return in patients with impaired function.

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BACKGROUND: To diagnose chronic anterior compartment syndrome (CACS) among patients with exercise-induced leg pain, intramuscular pressure (IMP) is regarded as the gold standard. Two recent studies have suggested that the evidence for commonly used IMP criteria are weak, and the validity has therefore come under question. PURPOSE: To evaluate whether the amplitude of pulse-synchronous IMP oscillations at rest after an exercise test is a reliable parameter that may aid in diagnosing CACS. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: A total of 89 consecutive patients with suspected CACS (mean age, 31 years) and 19 healthy subjects (mean age, 28 years) participated in this study. All participants performed an exercise test until they were unable to continue because of leg pain and/or muscle fatigue. The IMP was recorded continuously in the anterior compartment of the leg with a noninfusion pressure recording system, starting 15 to 30 seconds after discontinuation of exercise. To test the amplitude of pulse-synchronous IMP oscillations as an indicator of CACS, a peak-to-peak amplitude of >2 mm Hg was chosen as the cutoff value. The clinical diagnosis of CACS was considered reference standard. RESULTS: The mean ± SD IMP 1 minute after exercise was 54 ± 16 mm Hg in 53 patients with CACS, 17 ± 6 mm Hg in 36 non-CACS patients, and 18 ± 5 mm Hg in control subjects. The mean amplitude of the oscillations was 7.1 ± 3 mm Hg in patients with CACS, 1.3 ± 0.9 mm Hg in non-CACS patients, and 1.5 ± 0.6 mm Hg in control subjects 1 minute after exercise. The sensitivity of the amplitude to validate CACS was 96%, while the specificity was 94%. The positive predictive value was 96%, and the negative predictive value was 94%. CONCLUSION: The amplitude of the pulse-synchronous IMP oscillations at rest after an exercise test that elicits a patient's leg pain and muscle fatigue has high sensitivity to identify an abnormally elevated IMP. CLINICAL RELEVANCE: Oscillations are easily recorded during clinical routine IMP measurements. They ascertain the diagnosis of CACS, corroborate the level of IMP, and ensure catheter patency.

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AIMS: To study the prevalence of somatic and mental health comorbidity and the use of opioid medication among patients on long-term sick-leave due to chronic musculoskeletal pain (CMP); to compare an orthopaedic-based assessment of ability to work with a team assessment; to investigate the relationship between intensity of pain and psychosocial characteristics in this group. METHODS: A cross-sectional study was carried out with 174 consecutive patients on sick-leave for a mean of 21 months. All were referred from the Social Insurance Office for orthopaedic evaluation and assessment of the ability to work. Of them, only 83/174 patients were referred by the Office for psychiatric evaluation. RESULTS: Neck pain was the main cause of disability. Patients with neck pain often suffered pain in more than two sites, and greater intensity of pain. Thirty-four percent of all participants had been prescribed opioid medication before consultation. Degrees of disability, unemployment, low degree of education and to be an immigrant were related to intensity of pain. Unrecognized psychiatric disorders changed the main cause of inability to work in 69% of patients who underwent both orthopaedic and psychiatric evaluation. CONCLUSIONS: An evaluation based on biopsychosocial function is valuable in reaching an accurate assessment of the patient's diagnosis, and ability to work in CMP. Ability to work and degree of sick-leave in patients on long-term sick-leave is determined to a large extent by undiagnosed mental health comorbidities, and not solely somatic complaints.

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STUDY DESIGN: A prospective cross-sectional design. OBJECTIVE: The objectives were to describe the occurrence and to investigate the association of the fear-avoidance model variables (pain intensity, kinesiophobia, depression, and disability) in patients with specific or nonspecific chronic low back pain (CLBP). SUMMARY OF BACKGROUND DATA: Affective factors, particularly fear, have proven to be central in the explanation and understanding of chronic pain. The fear-avoidance model has shown that fearful patients with CLBP are at risk of becoming trapped in a vicious cycle of pain, fear, disability, and depressive symptoms. Little is known about the relationship between these factors in patients subgrouped as specific or nonspecific CLBP. METHODS: All 147 patients (81 women and 66 men) were examined by an orthopedic surgeon and diagnosed as either specific or nonspecific CLBP on the basis of that examination. Hierarchical multiple regression analysis was used to assess the ability of three independent variables (back pain intensity, VAS; kinesiophobia, TSK; depressed mood, Zung) to predict levels of disability after controlling for the influence of age and sex. RESULTS.: Both groups (specific and nonspecific CLBP) presented elevated values on the fear-avoidance model variables. All the independent fear-avoidance variables contributed in a statistically significant manner to predict disability in patients with specific CLBP, 67.0%, F (5, 59) = 24.46, P < 0.000. In patients with nonspecific CLBP, all variables except kinesiophobia predicted disability in a statistically significant manner, 63.0%, F (5, 59) = 22.64, P < 0.000. CONCLUSION: We conclude that persistent musculoskeletal pain affects the individual in a similar manner, regardless of the cause of the pain. In clinical terms, this means that pain must be analyzed and treated as a parallel process to searching for the cause of the pain.

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OBJECTIVE: The main objective of this study was to investigate different psychometric properties of the Swedish version of the Depression, Anxiety, and Positive Outlook Scale (DAPOS) in patients with chronic musculoskeletal pain in an orthopedic setting. METHODS: A total of 449 participants took part in the study, including 288 patients with chronic musculoskeletal pain and 161 participants in a reference group. Internal consistency, convergent validity, and measurement invariance of the constructs of DAPOS were investigated across sex and diagnostic groups. The Beck Depression Inventory and the Spielberger Anxiety Inventory were used for measures of convergent validity. Multigroup confirmatory factor analysis was performed to test measurement invariance of the theoretical constructs of DAPOS. RESULTS: Internal consistency was good for all 3 constructs, and correlations concerned with convergent validity were found to be acceptable to good. With regard to cross-validation, the 3 constructs of DAPOS were strictly measurement invariant with respect to sex. Across diagnostic groups, the constructs of anxiety and positive outlook were almost strictly measurement invariant, although there were some restrictions of measurement invariance for the construct of depression. DISCUSSION: To be able to rely on an instrument with as few items as DAPOS, the cross-validation of its constructs for sex and diagnostic groups is a valuable information, particularly when investigated in patients with musculoskeletal pain. Based on these results, we recommend that DAPOS could replace longer and more time-consuming screening tests in clinical settings.

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BACKGROUND: Chronic musculoskeletal pain (CMP) is associated with psychological distress and long-term disability. Underlying diagnoses causing long-term sickness absence due to CMP have not been explored enough. In a somatic health care setting, it is important to identify mental health comorbidity to facilitate the selection of appropriate treatment. The objectives of this study were to compare the scores of depressed mood obtained on the Beck Depression Inventory (BDI) with the diagnosis of depression made by a psychiatrist, and to study the prevalence of undiagnosed mental health comorbidity in these patients. METHODS AND PATIENTS: 83 consecutive patients on sick leave (mean duration 21 months) due to CMP who had been referred by the Social Insurance Office to an orthopedist and a psychiatrist for assessment of the patient's diagnoses and capacity to work. The mean age was 45 (23-61) years, 58% were women and 52% were immigrants. The accuracy of measurements was calculated using the Diagnostic Statistical Manual of Mental Disorders IV as the Gold standard. RESULTS: Psychiatric illness was diagnosed in 87% of the patients. The diagnosis was depression in 56%, other psychiatric illnesses in 31%, whereas 13% were mentally healthy. Of all the patients, only 10% had a previous psychiatric diagnosis. The median value of the BDI score was 26 points in depressed patients, whereas it was 23 in patients with other psychiatric diagnoses. The sensitivity of the BDI to detect depression was 87.5%. We found good agreement between the BDI score and a diagnosis of depression. CONCLUSION: Undiagnosed psychiatric disorders were commonly seen in patients with CMP. The high sensitivity of the BDI scores enables the screening of mental health comorbidity in patients with a somatic dysfunction. The test is a useful tool for detecting distress in patients who are on long-term sick leave due to CMP and who need additional treatment.

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The Tampa Scale of Kinesiophobia (TSK) has been used for a decade and is a valuable tool in researching pain-related fear. A variety of different factor models exist, however, and there are inconsistencies as to which model to use. The purpose of the study was twofold: 1) to thoroughly review existing factor models and 2) to empirically evaluate the previously proposed factor models in a large sample with persistent musculoskeletal pain. Subjects included 578 of 711 (81%) consecutive patients (aged 18-65 years) with persistent musculoskeletal pain from three different orthopedic outpatient clinics. We reviewed all existing factor models and performed confirmatory factor analyses on the existing models. Our review identified 11 factor models of the TSK. The identified models were tested on a large Swedish sample. All models were rejected because of unacceptable goodness-of-fit statistics in that specific sample. This study supports the fact that TSK is a multidimensional construct. Rather than searching for new factor solutions, future research should be devoted to forming a consensus for the conceptual and operational definitions of the construct kinesiophobia and the application of the Tampa Scale for Kinesiophobia. Physiotherapists are encouraged to take part in building new theories.

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OBJECTIVE: To describe the clinical changes following two different physiotherapy treatment protocols after rotator cuff repair. DESIGN: A prospective, randomized pilot study with a two-year follow-up. SUBJECTS: Five women and nine men, 55 (40-64) years old, were included. INTERVENTION: The progressive group (n = 7) started with dynamic, specific muscle activation of the rotator cuff the day after surgery as well as passive range of motion. After four weeks of immobilization the loading to the rotator cuff increased and in a progressive manner throughout the rehabilitation. In the traditional group (n = 7) the rotator cuff was protected from loading. Patients were immobilized for six weeks and started with passive range of motion the day after surgery. No specific exercises to the rotator cuff were introduced during this period. MAIN MEASURES: A clinical evaluation was made preoperatively, 3, 6, 12 and 24 months after surgery. Pain rating during activity and at rest, patient satisfaction, active range of motion and muscle strength, Constant score, hand in neck, hand in back and pour out of a pot, as well as Functional Index of the Shoulder were used. RESULTS: At two years follow-up, the progressive group and traditional group scored pain during activity visual analogue scale (VAS) 2/0 mm and pain at rest 0/0 mm, respectively. The groups attained 170/175 degrees in active abduction in standing and 70/90 degrees in passive external rotation while lying in supine. Using Constant score, the groups attained 82/77 points respectively. CONCLUSION: The present study showed that the progressive protocol produced no adverse effects compared with the traditional protocol.

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BACKGROUND AND PURPOSE: Methods for identification of patients with illness behavior in orthopedic settings are still being debated. The purpose of this study was to test the association between illness behavior, depressed mood, pain intensity, self-rated disability, and clinical status in patients with chronic musculoskeletal pain (CMP). METHODS: We examined 174 consecutive sick-listed patients (90 women). Musculoskeletal function was estimated by range of motion, muscle strength, and motor and sensory function. The degree of illness behavior was measured by Waddell signs (WS), RESULTS: WS were observed in 47/174 (27%) of the patients, 16% of whom manifested excessive illness behaviour. In general, more patients with WS were depressed (OR = 4.4; 95% CI: 1.8-11) and experienced greater pain (OR = 2.9; CI: 1.1-7.7). No abnormal physical function could be observed in two-thirds of the patients. Other predictive factors for manifesting WS at the clinical examinations were longer sick leave and previous full sick leave (p < 0.05). INTERPRETATION: Excessive illness behavior is related to psychological distress in patients with CMP and long-term disability. Thus, some patients may also require psychological assessment. Looking for WS during consultation is useful for targeting other factors that may be important in the diagnostic process.

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BACKGROUND: Kinesiophobia has been established as an important factor among patients with musculoskeletal pain. Most research has been performed among patient groups described in terms of disuse. Little, however, is known about the impact of affective factors among patients with overuse injuries caused by exercise. AIM: The aims were to investigate the occurrence of kinesiophobia among patients with exercise induced pain (overuse group) as compared to a reference group (chronic low back pain, CLBP), and to investigate kinesiophobia in relation to the type of pain and levels of exercise in the overuse group. METHODS: All patients were referred with unspecific pain to the orthopaedic clinic in order to make a specific diagnosis. The overuse group consisted of 146 patients with exercise induced leg pain, and the reference group consisted of 154 patients with CLBP. All patients completed questionnaires regarding age, pain duration, severity of pain and subjective rating of kinesiophobia (TSK). The overuse group was subgrouped verified by an exercise test and diagnostic criteria and completed questionnaires about the level of exercise. RESULTS: More than 60% of the overusers presented with kinesiophobia, but they did not differ as compared to the reference group. No difference in kinesiophobia was found in the overuse subgroups divided after type of pain. The highest level of kinesiophobia was found among the non-exercisers. CONCLUSIONS: The results of this study point out the need for further elaborating on the concepts of use, overuse and disuse in relation to the fear-avoidance model.

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OBJECTIVES: To describe clinical changes with two protocols of physiotherapy following arthroscopic subacromial decompression (ASD) over two years. Reliability of Functional Index of the Shoulder was performed. DESIGN: A prospective, randomized pilot study, within-subject design. SUBJECTS: Thirty-four shoulders (13 women), mean age 46 (SD 7) years with primary shoulder impingement, listed for arthroscopic subacromial decompression. INTERVENTIONS: The traditional group (n = 20) started with active assisted range of motion exercises on the day of surgery, dynamic exercises for the rotator cuff after six weeks and strengthening exercises after eight weeks. The progressive group (n = 14) started active assisted range of motion and dynamic exercises for the rotator cuff on the day of surgery. Strengthening exercises started after six weeks. MAIN MEASURES: A clinical evaluation was made preoperatively, six weeks, three, six, 12 and 24 months after surgery. Pain, patient satisfaction, active range of motion and muscular strength were evaluated. Shoulder function was evaluated using Constant score, Hand in neck, Pour out of a pot and Functional Index of the Shoulder. RESULTS: Both groups showed significant improvements in pain during activity and at rest, in range of motion in extension and abduction, in strength of external rotation and in function. There were no clinical differences in changes between groups. Most patients were pain-free from six months. After two years, the majority of patients achieved > or = 160 degrees in flexion, > or = 175 degrees in abduction and 80 degrees in external rotation, the traditional achieved 67 and the progressive group 87 with Constant score. CONCLUSIONS: Early activation using a comprehensive, well-defined and controlled physiotherapy protocol can be used safely after arthroscopic subacromial decompression.

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OBJECTIVE: The aim of the present study was to use a phenomenological approach to explore how patients with persistent musculoskeletal pain experienced moving with their pain. DESIGN: In-depth interviews were performed by a physical therapy researcher with many years' experience with the rehabilitation of patients with persistent musculoskeletal pain. SETTING: The patients took part in individual rehabilitation at two different physical therapy departments. All but one patient opted to be interviewed in a room at the physical therapy department. METHOD: The sample was purposive and consisted of 10 Swedish outpatients with heterogeneous nonmalignant persistent musculoskeletal pain. SUBJECTS: The interviews were analyzed according to a qualitative method known as the Empirical Phenomenological Psychological (EPP) method. The results were coded, analyzed, and described in typologies. RESULTS: The experience of moving with pain implied much more than pure physical movement. Pain was a threatening challenge to the informants' existence and identity. Three typologies were identified: failed adaptation, identity restoration, and finding the way out. CONCLUSIONS: In conclusion, to move with persistent pain was described by the informants as having deep existential impact on the individual's life. It was also evident that all of the informants experienced a dramatic change in their identity. These experiences would most likely affect the patients' chances of recovery. To help him/her through the rehabilitation process, we need to extend our knowledge about what it means to the patient in an existential context to be unable to move as before.

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