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PubMedDate not supplied

The development and evaluation of a disease-specific quality of life measurement tool for shoulder instability. The Western Ontario Shoulder Instability Index (WOSI).

The purpose of this study was to develop a valid, reliable, and responsive disease-specific quality of life measurement tool for patients with shoulder instability. Development included 1) identification of a specific patient population; 2) generation of issues specific to the "disease" ("items") from reviewing the literature, interviewing health caregivers, and interviewing patients representing all demographics, disease type and severity, and treatments; 3) item reduction using patient-generated frequency-importance products and correlation matrices; and 4) pretesting the prototype instrument on 2 groups of 10 patients. The final instrument, the Western Ontario Shoulder Instability Index, has 21 items representing 4 domains. The instrument attributes (validity, reliability, and responsiveness) were evaluated. Construct validation demonstrated that this index correlated predictably with other measures. Reliability was very high at 2 weeks and 3 months, and the index was more responsive (sensitive to change) than five other shoulder measurement tools (the Disabilities of the Arm, Shoulder and Hand scale; The American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form; the UCLA Shoulder Rating Scale; the Constant Score; and the Rowe Rating Scale), a global health instrument (the SF12), and range of motion. Since the patient's perception of changes in health status is the most important indicator of the success of a treatment, we suggest that this measurement tool be used as the primary outcome measure to evaluate treatments in this patient population, although it can also be used for monitoring patients' progress in clinical practice.

Demography↗
PubMed2004

Shoulder function and 3-dimensional kinematics in people with shoulder impingement syndrome before and after a 6-week exercise program.

BACKGROUND AND PURPOSE: Shoulder impingement syndrome is a common condition and is often managed with an exercise program. The purpose of this study was to examine an exercise program in patients with shoulder impingement syndrome. Specifically, the purpose was to identify changes that might occur in 3-dimensional scapular kinematics, physical impairments, and functional limitations. SUBJECTS: Fifty-nine patients with impingement syndrome were recruited, and 39 patients successfully completed the 6-week rehabilitation program and follow-up testing. Impingement was defined as having at least 3 of 6 predefined clinical signs or symptoms. METHODS: Subjects were assessed before and after a 6-week rehabilitation program and again at 6 months. Pain, satisfaction, and function were measured using the University of Pennsylvania Shoulder Scale. Range of motion, isometric muscle force, and 3-dimensional scapular kinematic data also were collected. Subjects were given a progressive exercise program that included resistive strengthening, stretching, and postural exercises that were done daily at home. Subjects also were given shoulder education related to anatomy, the basic mechanics of impingement, and strategies for reducing load on the shoulder. Each subject attended one physical therapy session per week for a 6-week period, primarily for monitoring and upgrading the exercise program. Pretest and posttest scores were compared using paired t tests and repeated-measures analysis of variance. RESULTS: Passive range of motion increased for both external and internal rotation but not for elevation. Abduction external and internal rotation force all increased. There were no differences in scapular kinematics. Improvements were found for pain, satisfaction, and shoulder function and for Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) scores related to physical function. At 6-month follow-up, improvements made in pain, satisfaction, and function were maintained. DISCUSSION AND CONCLUSION: The use of this exercise protocol in the management of shoulder impingement syndrome may have a positive impact on patients' impairments and functional limitations. Our findings suggest a relatively simple exercise program combined with patient education may be effective and, therefore, merits study in a larger trial using a control group. Changes in scapular kinematics did not appear to be a primary mechanism underlying improvement in symptoms and function.

Adult↗
PubMed2005

Arthrographic distension of the shoulder joint in the management of frozen shoulder.

The study was an open randomized controlled trial to compare the outcome at 8 weeks with two different modalities in the treatment of 'Frozen shoulder'. Clinical cases with painful limitation of movement of shoulder were randomized to receive physical therapies alone versus physical therapies and shoulder arthrography with intra-articular steroid in a sequential randomization process. Cases suspected of having a concomitant illness and has potential to cause secondary frozen shoulder were excluded, such as, history of trauma to shoulder over the last 6 months, symptomatic clinical cervical degenerative diseases, and causes in and around the shoulder (infective and non-infective). Physical Therapies provided to all patients were therapeutic exercises, transcutaneous electrical nerve stimulation (TENS) and infra-red radiation (IRR). Outcome measures were improvement of pain on a Visual Analogue Scale (VAS) score and range of motion measured by Goniometer at 8 weeks. Patients were followed weekly for 8 weeks and outcome parameters were recorded on every evaluation. The baseline range of motion in the two groups was comparable. At 8 weeks a statistically significant difference in outcome were observed in the two groups. The chi-square means difference of improvement in range of motion for abduction was p <0.00 and for external rotation was p <0. 00. The pain reduction on VAS score was not significant in the two groups (p <0. 40). In the present small series, the distension arthrography with intra-articular (IA) steroid plus physical therapy was superior over physical therapy alone in the functional improvement of the frozen shoulder. Further studies with larger sample size are required to confirm the observations.

Adrenal Cortex Hormones↗
PubMed2001

On the impact of calcified deposits within the rotator cuff tendons in shoulders of patients with shoulder pain and dysfunction.

We wanted to prove the hypothesis that calcified deposits within the rotator cuff tendons are merely an epiphenomenon of complex morphological alterations in the shoulders of patients with shoulder pain and dysfunction. The shoulders of 92 patients with calcified deposits within the rotator cuff tendons as noted on plain radiographs were investigated by means of magnetic resonance imaging (MRI; mean age of patient 51.1 years), as well as the shoulders of 28 age- and sex-matched patients with similar clinical symptoms but without any signs of such calcified deposits on plain radiographs. The MRI protocol comprised a coronal, oblique, T1-weighted, spin-echo sequence, a T2-weighted, turbo spin-echo sequence, a sagittal, oblique, T2-weighted, turbo spin-echo sequence, and an axial, T1-weighted, spin-echo sequence. Furthermore, a coronal, oblique, short tau-inversion recovery sequence and a gradient echo sequence were used. The results were compared with data from healthy, asymptomatic volunteers as reported in the literature. The MRI investigations showed no substantial differences between patients with or without calcified deposits within the rotator cuff tendons, but distinct differences between such patients and healthy, asymptomatic volunteers. For patients with shoulder pain, shoulder dysfunction, and calcified deposits within the rotator cuff tendons, these calcified deposits are most probably not the main cause of the clinical symptoms. Rather, it seems to be useful to consider the results of MRI investigations whenever planning therapeutic procedures for patients with shoulder pain and dysfunction, irrespective of whether or not there are signs of calcified deposits within the rotator cuff tendons on plain radiographs.

Adult↗
PubMed2006

EMG analysis of shoulder muscle fatigue during resisted isometric shoulder elevation.

The purpose of this study was to determine if a difference existed in the rate of fatigue of select shoulder muscles during isometric shoulder elevation and if the measured rate of fatigue was consistent from day to day. Shoulder muscle fatigue has been associated with alterations in joint mechanics and possibly contributes to shoulder dysfunction. While research exists, there is limited information on an objective and reliable measure of shoulder fatigue. Sixteen asymptomatic subjects were evaluated. The subjects held a weight equivalent to 60% of his/her Maximum Voluntary Isometric Contraction (MVIC) while elevating in the scapular plane. Surface electrodes were applied to collect electromyographic activity from the upper trapezius, middle deltoid, serratus anterior, and lower trapezius muscles while the arm was held at 90 degrees elevation. Data collection ceased when the subject was no longer able to maintain 90 degrees of elevation. The subject then rested and a second trial performed. One week later, the two-trial procedure was repeated. A significant interaction of trial x day x muscle was found for the rate of fatigue. Post hoc analysis revealed that the rate of fatigue of the middle deltoid was significantly greater than the other muscles tested. The intraday reliability was good for all muscles but interday reliability was poor except for the middle deltoid. This study suggests that the middle deltoid appears to fatigue faster than the other shoulder muscles tested at the selected level of shoulder elevation. This should be considered in designing a rehabilitation program to develop a sequence that does not overly fatigue the middle deltoid.

Adult↗
PubMedDate not supplied

Shoulder arthroplasty for locked posterior dislocation of the shoulder.

Currently, there are no published series with mid- to long-term results on patients undergoing shoulder arthroplasty for locked posterior dislocation of the shoulder. We reviewed the results of patients who underwent shoulder arthroplasty for locked posterior dislocation of the shoulder to determine the results, the risk factors for an unsatisfactory outcome, and the rates of failure. Twelve shoulder arthroplasties were performed at our institution, between January 1, 1980, and December 31, 1997, in 12 patients who had a locked posterior dislocation of the shoulder. All 12 patients were followed up for a minimum of 5 years (mean, 9.0 years) or until the time of revision surgery. There was significant pain relief (P <.001) as well as improvement in external rotation from -13 degrees to 28 degrees (P =.001). On the basis of a modified Neer result rating system, there was 1 excellent, 6 satisfactory, and 5 unsatisfactory results. Three patients underwent revision surgery for posterior instability (two) and component loosening (one). Recurrent instability occurred in two patients in the early postoperative period. There were no cases of recurrent instability greater than 1 year from the time of surgery. The data from this study suggest that shoulder arthroplasty for locked posterior dislocation provides pain relief and improved motion. Among those with recurrent posterior instability, it usually appears in the early postoperative period.

Adult↗
PubMedDate not supplied

Treatment of locked posterior fracture-dislocations of the shoulder by total shoulder arthroplasty.

Total shoulder arthroplasty is indicated in the treatment of locked posterior fracture-dislocations of the shoulder where there is extensive damage to the articular surfaces of the humerus and glenoid. This report reviews the surgical technique, postoperative rehabilitation program, and functional results of seven shoulders in five patients who had locked posterior dislocations of the shoulder. Activities involving overhead positioning of the arm and heavy lifting continued to be challenging for this group of patients. The American Shoulder and Elbow Surgeons' Shoulder Score improved from 20.1 before surgery to 55.6 after surgery (p = 0.018). The extrication of the posteriorly dislocated humeral head may be difficult from an anterior deltopectoral approach. The authors describe the use of a secondary posterior incision facilitating the extrication of the humeral head. In this series total shoulder arthroplasty reliably decreased the patients' level of pain, improved their range of motion, and significantly improved their level of function.

Adult↗
PubMed1998

[Changes in proprioceptive capacities of the shoulder joint in ventral shoulder instability. A comparative study before and after arthroscopic labrum refixation].

Measurements of movement sense determined by threshold levels for the perception of motion of the shoulder were performed in 10 patients with unilateral posttraumatic shoulder instabilities, in 30 patients who underwent arthroscopic labrum repair for recurrent anterior shoulder instability, and in 15 age-related controls. In patients with anterior shoulder instabilities threshold levels for the perception of motion were higher. In addition, movement sense measurements revealed a marked, but time dependent improve of proprioceptive abilities in patients who underwent arthroscopic labrum repair. While in the shoulders of patients with an postoperative period shorter than 18 months elevated threshold levels for the perception of motion still could be observed, after a postoperative period of 18 moths or more movement sense was not different from normal, uninjured shoulders. In conclusion, our study gives evidence for a proprioceptive deficit with anterior shoulder instability which improves significantly after arthroscopic labrum repair. The restitution of proprioceptive abilities, however, seems to be a time dependent process.

Adult↗
PubMed1992

Abnormal temperature control suggesting sympathetic dysfunction in the shoulder skin of patients with frozen shoulder.

In view of the possibility that sympathetically mediated pain could be responsible for frozen shoulder symptoms we compared shoulder skin vasomotor control in 11 patients with frozen shoulder and 17 similarly aged normal subjects without shoulder pain. Using computer-assisted thermography the shoulder skin temperature was assessed before and following a 'cold challenge' which consisted of a 15 degrees C cold pack being held against the skin for 60 sec. Both prior to and immediately following the cold challenge shoulder skin temperatures tended to be lower in the patients. During a 10-min rewarming phase, however, the between-group temperature difference increased and became significant at the 0.05 level. These abnormalities of temperature control in patients clearly suggest sympathetic dysfunction in the dermatome subserving pain sensation from the affected shoulder. Whether these abnormalities are primary or secondary remains unresolved.

Adult↗
PubMed2003

[Shoulder arthroplasty for non-operated anterior shoulder instability with secondary osteoarthritis].

PURPOSE OF THE STUDY: The purpose of this study was to analyze the natural history of osteoarthritis of the shoulder joint secondary to non-operated anterior instability, to evaluate the clinical and radiological outcome after arthroplasty for this indication, and to compare results with data reported in the literature. MATERIAL AND METHODS: Twenty-eight Aequalis shoulder arthroplasties were performed for osteoarthritis secondary to anterior shoulder instability in patients who had not undergone any prior stabilizing surgical procedure. This multicentric series was reviewed retrospectively at a mean follow-up of 44 months (range 24-87 month). Preoperative and last follow-up clinical status was compared using the Constant score. Standard operative technique was used and anatomic position of the implants was achieved in 27 patients. Total shoulder arthroplasty was performed in eighteen patients and simple humeral implantation in ten. Patients were divided into two sub-groups for analysis of outcome (age at first dislocation > or < 40 years). RESULTS: There were four complications including one early loosening that required revision arthroplasty. Outcome was excellent or good in 54% of the cases. Group 1 (age at first dislocation < 40 years) included 17 patients and exhibited male predominance (13/17), young age at first dislocation (mean 28.5 years), high number of dislocations (mean 13), and a long natural history of osteoarthritis (mean 28 years). In this sub-group, imaging disclosed constructive osteoarthritis reflecting a long history. There was one case with a full-thickness tear of the supraspinatus. Outcome was excellent or good in 64% of these 17 patients (14 underwent total shoulder arthroplasty). The sub-group of 11 patients whose first dislocation occurred after the age of 40 years exhibited female predominance (9/11), a small number of dislocations (mean 1.3), and a short natural history of osteoarthritis (mean 6 years). In this sub-group, imaging disclosed six cases of basically chondrolytic osteoarthritis reflecting a short evolution. There were seven cases of full-thickness tears of the supraspinatus. Outcome was excellent or good in 36% of these 11 patients (4 underwent total shoulder arthroplasty). DISCUSSION: The forty-year age cutoff allowed us to distinguish two populations. The first population of patients whose first dislocation had occurred before the age of 40 years was predominantly male, with a long history of constructive osteoarthritis without rotator cuff tears. Most of these patients were treated with total shoulder arthroplasty which gave results similar to those obtained with arthroplasty for primary centered osteoarthritis. The second sub-group of patients aged over 40 years at the time of the first dislocation were predominantly female with a short history of minimally constructive osteoarthritis and frequent rotator cuff tears. Humeral implants were used for most of these patients and gave less favorable results than in the former sub-group, probably due to the high rate of rotator cuff tears.

Adolescent↗
PubMed1985

Shoulder forearm support for the subluxed shoulder.

Subluxation of the shoulder is a common problem in patients who have had a stroke. Of the shoulder supports that are being used, many do not reduce the subluxation, and patients continue to complain of shoulder pain. The shoulder support designed for this study reduces subluxation, is custom fit, costs less, and is more comfortable than conventional slings. The sling is difficult to don but patients are able to perform self-ROM exercises without removing the sling. The sling consists of two parts: a shoulder support and forearm support. Both portions are worn when the patient is ambulating or standing. Only the shoulder support is worn when the patient is sitting with a lapboard. X-rays confirmed the reduction of subluxation, and patients reported decreased shoulder pain.

Cerebrovascular Disorders↗
PubMed1996

A shoulder pain score: a comprehensive questionnaire for assessing pain in patients with shoulder complaints.

This study describes the validation and application of a comprehensive questionnaire (the shoulder pain score) in assessing pain experienced by patients with shoulder complaints. The shoulder pain score comprised six pain symptom questions selected from the literature, together with a 101-Numerical Rating Scale (NRS-101). The score was tested in a follow-up study of 101 patients with shoulder complaints. The coefficient for the internal consistency of the shoulder pain score was 0.82. A factor analysis disclosed two factors: one containing the NRS-101 with the "active" items of the shoulder pain score and another containing the "passive" items. The shoulder pain score gave a reliable impression of the pain experienced and proved to be a useful instrument for following the course of the disorder over time and giving an indication when a patient feels cured.

Adult↗
PubMed1980

The halo-shoulder brace and the mandibular-shoulder brace as postoperative supports following spinal fusion.

Bracing of the cervical spine in patients with rheumatoid arthritis, ankylosing spondylitis and instability due to metastases poses special problems. Because of asymmetry, a tender bony or cutaneous swelling or tender skin, difficulties arise in fitting a mass-produced brace. In order to overcome these difficulties a carefully moulded made-to-measure halo-shoulder brace and also a mandibular-shoulder brace were developed. The halo-shoulder brace (a halo connected with 4 rods to a shoulder girdle) provides an effective means of postoperatively controlling the unstable cervical spine until the graft unites. The brace is well tolerated by the patient and facilitates early postoperative mobility. The mandibular-shoulder brace (a similar shoulder girdle with a mandibular and an occipital part), also well tolerated by the patient, is used after the halo-shoulder brace during consolidation of the graft and also to support the neck in patients who for other reasons require a collar but who cannot tolerate a normal readymade appliance. The manufacture of the braces, their effectiveness and a series of 13 patients are described.

Adult↗
PubMedDate not supplied

Deficits in shoulder function and general health associated with sixteen common shoulder diagnoses: a study of 2674 patients.

The purpose of this study is to define the self-assessed deficits in function and general health perceived by a large cohort of patients with common shoulder diagnoses. For a 10-year period, all new shoulder patients presenting to the senior author were characterized by diagnosis, age, gender, and self-assessed shoulder function and general health status. This report concerns the 2674 patients having 1 of the 16 most prevalent diagnoses. The deficits in shoulder function and health status were correlated with diagnosis, age, and gender, as well as with each other. Patient self-assessment provided a standardized method for collecting data on shoulder function and health status. These assessments revealed substantial deficits; for example, 81% of patients were unable to sleep on the affected side, and 71% were unable to wash the back of the opposite shoulder. The magnitude of these deficits correlated significantly with gender and diagnosis but not with age.

Acromion↗
PubMed2005

Shoulder impingement: the effect of sitting posture on shoulder pain and range of motion.

The re-education of spinal posture is an integral part of shoulder impingement management yet supporting evidence is limited. The purpose of this study was to evaluate the effect of slouched versus erect sitting posture on shoulder pain intensity and range of motion (ROM) in subjects with impingement. A same-subject repeated-measures design was utilized. Maximum active shoulder flexion and associated pain intensity were measured in 28 subjects in slouched and erect sitting postures, using video-analysis and visual analogue scales, respectively. An intra-tester reliability study of the video-analysis system was completed and intra-class correlation coefficients calculated. Shoulder flexion differences between slouched and erect sitting posture were analysed using a repeated-measures analysis of variance (ANOVA). The intra-tester reliability of the video-analysis method was found to be 'excellent' (ICC = 0.99). Flexion ROM was significantly greater in the erect sitting posture (F = 100.3, P < 0.0001); the mean ROM difference between postures was 17.67 degrees (+/- 9.17 degrees). There was no significant difference in pain intensity between postures (F = 1.9, P = 0.179). An erect sitting posture appeared to increase active shoulder flexion in subjects with shoulder impingement, although there were no differences in reported pain intensity. Further research is required to investigate the long-term effects of postural re-education.

Adult↗
PubMedDate not supplied

[3-dimensional image analysis of the shoulder joint--a new method for characterizing parameters of shoulder joint function].

OBJECTIVE: An exact assessment of shoulder movement is of special importance both in the diagnosis of and in the therapy for different shoulder diseases. Therefore, we developed a feasible method for the analysis of shoulder movement. METHODS: On the basis of an ELITE system and 6 skin markers (marker positions. acromion, humerus, olecranon, proc. styloideus ulnae, cervical and thoracic spine), movement analysis was performed during continuous abduction of the arm over 15 s. With the help of a purpose made software we determined the exact angle of abduction and, in addition, the acceleration (+aAC) and the deceleration (-aAC) of the acromion. We evaluated 12 normal subjects (10 male, 2 female, average age 29 yrs) without shoulder conditions and 8 patients (6 male, 2 female, average age 46 yrs.) with unilateral impingement syndrome stage II according to Neer. RESULTS: In addition to a significantly diminished abduction ability in patients with impingement syndrome, our results also revealed significantly decreased acceleration values for the acromion in impingement patients. In contrast, deceleration values for the acromion were not altered in patients with impingement syndrome. CONCLUSION: The presented method allows exact measurements of shoulder movement. In addition, measurements of acromion acceleration and deceleration seem to offer two parameters for the assessment of shoulder function in pathological conditions. Further investigations are required to prove the advantages and limitations of this method.

Adult↗
PubMed2005

Incidence of shoulder and neck pain in a working population: effect modification between mechanical and psychosocial exposures at work? Results from a one year follow up of the Malmö shoulder and neck study cohort.

STUDY OBJECTIVE: To assess the impact of mechanical exposure and work related psychosocial factors on shoulder and neck pain. DESIGN: A prospective cohort study. PARTICIPANTS: 4919 randomly chosen, vocationally active men and women ages 45-65 residing in a Swedish city. Neck and shoulder pain were determined by the standardised Nordic questionnaire. Mechanical exposure was assessed by an index based on 11 items designed and evaluated for shoulder and neck disorders. Work related psychosocial factors were measured by the Karasek and Theorell demand-control instrument. MAIN RESULTS: High mechanical exposure was associated with heightened risk for shoulder and neck pain among men and women during follow up. Age adjusted odds ratios (OR) were 2.17 (95% confidence intervals (CI): 1.65, 2.85) and 1.59 (95% CI: 1.22, 2.06), respectively. In women, job strain (high psychological job demands and low job decision latitude) correlated with heightened risk (OR = 1.73, 95% CI: 1.29, 2.31). These risk estimates remained statistically significant when controlled for high mechanical exposure regarding job strain (and vice versa), and for sociodemographic factors. Testing for effect modification between high mechanical exposure and job strain showed them acting synergistically only in women. CONCLUSION: Job related mechanical exposure in both sexes, and psychosocial factors in women, seem independently of each other to play a part for development of shoulder and neck pain in vocationally active people. The effect of psychosocial factors was more prominent in women, which could be the result of biological factors as well as gender issues. These results suggest that interventions aiming at reducing the occurrence of shoulder and neck pain should include both mechanical and psychosocial factors.

Aged↗
PubMedDate not supplied

Comparison of the Single Assessment Numeric Evaluation method and two shoulder rating scales. Outcomes measures after shoulder surgery.

The purpose of this study was to determine the correlation between the Single Assessment Numeric Evaluation method and the Rowe and American Shoulder and Elbow Surgeons scores. Between April 1993 and December 1996, 209 follow-up examinations were performed on 163 United States Military Academy cadets after shoulder surgery. These 209 examinations were divided into five follow-up categories: 3 months, 6 months, 1 year, 2 years, and greater than 2 years. The Rowe and American Shoulder and Elbow Surgeons scores from each subject's follow-up questionnaire were correlated with his or her Single Assessment Numeric Evaluation rating, which is determined by the subject's written response to the following question: "How would you rate your shoulder today as a percentage of normal (0% to 100% scale with 100% being normal)?" Correlation coefficients between the Single Assessment Numeric Evaluation and the two scores were 0.51 to 0.79 for the Rowe score and 0.46 to 0.69 for the American Shoulder Elbow Surgeons score. The results of this study indicate that the Single Assessment Numeric Evaluation correlates well with these two scores after shoulder surgery. This study suggests that this new evaluation method provides clinicians with a mechanism to gather outcomes data with little demand on their time and resources.

Activities of Daily Living↗