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Electromyographic activities of the biceps during arm elevation in shoulders with rotator cuff tears.

We investigated electromyographic activities of the biceps in 40 shoulders with full-thickness tears of the rotator cuff and 40 asymptomatic shoulders, with a normal rotator cuff on MRI, to determine the role of the biceps in cuff-deficient shoulders. Using surface electrodes, biceps activities were recorded during arm elevation in the scapular plane with and without a 1-kg load. The percentages of integrated electromyograms to the maximum voluntary contraction (%MVC) were obtained at 30 degrees, 60 degrees, 90 degrees, and 120 degrees of elevation. In the normal shoulders, %MVC of the biceps was always less than 10% through the arc of elevation both with and without load. Among 40 shoulders with rotator cuff tears, 14 showed increased activities of the biceps more than 10% in %MVC (p < 0.0001), whereas the remaining 26 shoulders had activities similar to the normal shoulders. The biceps activities in these 14 shoulders increased with load application and at higher angles of elevation. The muscle strength tended to be weaker in shoulders with increased biceps activities than in those without. Our findings suggest a potential supplemental function of the biceps in shoulders with rotator cuff tears.

Adult↗

[The painful hemiplegic shoulder: effects of exercises program according to Bobath].

AIM: To verify whether a shoulder exercises program according to Bobath reduced the shoulder pain in hemiplegic patients. METHODS: We studied a total of 20 patients with pain shoulder. Ten patients are assigned to group R (submitted to rehabilitation) and ten to group R+E (submitted to rehabilitation and shoulder exercises program according to Bobath). Shoulder exercises program was self-performed by the patients after training in occupational rehabilitation unit. The assessment of patients was performed at admission to hospital, at discharge and three months after discharge. Shoulder pain (VAS), shoulder range of motion, disability (FIM), motor function (Fugl-Meyer scale) and spasticity (Ashworth scale) of paretic arm were evaluated in all patients. RESULTS: VAS was similar in both groups at admission and decreased in group R+E at discharge without reaching significant differences (p=0.253). On the contrary, VAS and Shoulder range of motion improved statistically in group R+E (p=0.0001, p<0.04 respectively) after three months. The others variables measured did not change. CONCLUSIONS: This study showed that a shoulder exercises program according to Bobath reduces shoulder pain of patients with hemiplegia if it is performed daily and for a long period of time.

Adult↗

Differences in multi-joint kinematic patterns of repetitive hammering in healthy, fatigued and shoulder-injured individuals.

BACKGROUND: Work-related musculo-skeletal disorders have been previously related to movement repetition, inadequate postures, non-ergonomic environments, muscular imbalance and fatigue. However, no direct link between fatigue and injury has been experimentally shown. To address this problem, we compared the effects of fatigue and injury on the kinematics of repetitive hammering. METHODS: Healthy subjects (n=30) hammered repetitively both before and after fatigue. Fatigue was induced by a combination of static and dynamic procedures. Shoulder-injured subjects (n=15) hammered for 30s without fatigue. Kinematics of motion was recorded. FINDINGS: The movement time and shoulder range of motion during hammering were not affected by either fatigue or shoulder injury. When fatigued, the healthy subjects displayed decreased range of joint motion, peak velocity and peak acceleration of elbow motion during hammering as well as reduced grip strength. Shoulder-injured individuals had a smaller hammer trajectory amplitude than healthy controls with or without fatigue. They also had lower wrist range of motion, elbow peak velocity, and peak wrist and elbow acceleration compared to healthy subjects hammering without fatigue but only lower wrist peak acceleration compared to healthy subjects hammering with fatigue. INTERPRETATION: Results showed that fatigue affects elbow motion while shoulder injury affects both wrist and elbow motions during hammering. However, shoulder kinematics were not changed by either fatigue or shoulder injury. These changes at the wrist and elbow may reflect strategies used by individuals with shoulder injury to maintain constant movement duration and shoulder kinematics during movement.

Adult↗

Arthroscopic management of refractory shoulder stiffness.

Glenohumeral stiffness is a major cause of shoulder disability and pain. Conventional management strategies often fail to yield consistent or prompt return of comfort and function. Over the past 5 years, we have employed a prospective approach to the evaluation and management of glenohumeral stiffness using arthroscopic release of capsular contractures for the most refractory. This report concerns the first 30 patients who failed at least 6 months (28 month mean) of nonoperative management for unilateral refractory shoulder stiffness and who were managed by arthroscopic capsular release. Fourteen patients were diabetic. Follow-up averaged 33 months (range 12 to 56 months). Each patients' motion and strength was documented according to the American Shoulder and Elbow Surgeons standard examination. Functional outcome measures were patient-assessed using the Simple Shoulder test before and after surgery. Before surgery, active range-of-motion of the affected shoulder average 41% of the opposite asymptomatic side. The day after surgery, motion had improved dramatically to a mean of 78%. An additional 15% of motion was gained after discharge from the hospital. The final motion averaged 93% of the opposite side. All Simple Shoulder Test (SST) parameters and six of nine SF-36 health status scores were improved significantly. Only 6% of patients were able to sleep comfortably on their side and 35% could place 1 lb. on a shelf at shoulder height before surgery. After surgery, 73% were able to sleep comfortably on the affected side and 83% were able to place 1 lb. on a shelf at shoulder height. There were no differences among all outcome measures between diabetic or nondiabetic patients. Three patients developed recurrent refractory stiffness. The only complication was a single axillary neuropraxia which resolved spontaneously. No patient developed instability. Arthroscopic capsular release can be a safe and effective tool in the management of refractory shoulder stiffness.

Adult↗

Shoulder symptoms in healthy athletes: a comparison of outcome scoring systems.

We used the Rowe, ASES, UCLA, Constant-Murley, and the Simple Shoulder Test scoring systems to determine the presence and severity of shoulder symptoms in "healthy" collegiate athletes at mid-season. Intercollegiate athletes were surveyed with a single, specific, comprehensive questionnaire regarding both of their shoulders at the mid-season of their respective sport. The questionnaire compiled the previously mentioned scoring systems and additional inquiries. Shoulders were divided into three groups for analysis: dominant-never injured, nondominant-never injured, and history of injury. Significant shoulder symptoms exist in athletes during full participation in their respective sport. Pain was the most frequent symptom, with 47% of all shoulder having some degree of pain. The frequency and degree of symptoms was significantly greater in shoulders with a history of injury. The UCLA scoring system is the most sensitive for evaluating "healthy" athletes at mid-season. However, the ideal shoulder scoring system for athletes has yet to be developed. To expect a "normal" or "symptom-free" shoulder after injury or surgery may be inappropriate. This information can serve as a reference for clinicians when evaluating the results of surgery and other treatment programs.

Athletic Injuries↗

Ultrasonic measurement of the anterior translation in the shoulder joint.

A new method for measuring the anterior translation in the shoulder joint by dynamic ultrasound was evaluated. We placed a 3.5-MHz transducer on the shoulder anteriorly. By using 3 bony landmarks, we then measured the anterior translation of the humeral head with a force of 90 N applied posteriorly. We performed such measurements in 20 subjects with healthy shoulders and in 20 patients with unilateral shoulder instability. There was a mean translation of 1.9 mm in healthy shoulders and 4.9 mm in unstable shoulders (P < .01). The mean difference between the 2 sides in subjects with normal shoulders was 0.7 mm, whereas the mean difference in patients with instability was 2.8 mm (P < .01). The normal shoulders were examined by 2 examiners to determine the degree to which different examiners' measurements might vary. Although one examiner recorded higher values than the other, the new method seems suitable for measuring increased laxity in unstable shoulders.

Adolescent↗

Surgical repair for recurrent anterior instability of the shoulder.

BACKGROUND: The outcome of surgical repair for recurrent anterior instability of the shoulder at the Wellington Hospital was reviewed. METHODS: A retrospective review was undertaken of patients undergoing surgical repair for recurrent anterior instability of the shoulder at Wellington Hospital between October 1989 and November 1996. Patients were asked to complete two shoulder-specific questionnaires, and the range of motion, stability, and strength was evaluated clinically. RESULTS: A total of 37 patients (38 shoulders) who had recurrent anterior dislocation of the shoulder that was unresponsive to a physician-directed rehabilitation programme were managed with open surgical repair. Procedures included the Putti-Platt, Bristow, Magnuson-Stack, Botychev, and Bankart repairs. The mean age at the time of surgery was 24 years and the male-to-female ratio was 11.3:1. Surgery was performed on the dominant side in 63.2% of shoulders. The postoperative redislocation rate was 39.4% at an average of 4.6 years follow-up. Three patients have since required revision of their surgical repair and one patient is awaiting revision. A total of 63.2% of patients were unable to return to their previous level of sports. Differences existed between the motion in the surgically treated shoulder when compared with the contralateral side. Patients reported the most functional difficulty in throwing, working overhead, pulling, and working at shoulder level. CONCLUSIONS: The results of the present study indicate a high redislocation rate, and highlight the challenges in restoring a stable, mobile, functional shoulder.

Activities of Daily Living↗

Development of arthrosis following dislocation of the shoulder: a case-control study.

The goal of this study was to document whether an association exists between shoulder dislocation and the development of arthrosis and to quantify this association, if present. Patients with osteoarthrosis who had undergone hemi-shoulder or total shoulder arthroplasty (TSA) were studied. Patients who had undergone total knee arthroplasty for arthrosis and who had no history of shoulder symptoms served as control subjects. All patients were asked if they had ever sustained a shoulder dislocation. Ninety-one TSA patients and 282 control subjects responded. The odds ratio for developing arthrosis after a shoulder dislocation was 19.3 (P =.000006). With the 5 patients who had shoulder surgery prior to TSA excluded, the odds ratio was 10.5 (P =.003). The risk of developing severe arthrosis of the shoulder is between 10 and 20 times greater for individuals who have had a dislocation of the shoulder.

Aged↗

Shoulder arthroplasty for proximal humeral nonunions.

Between 1980 and 1997, 27 patients underwent shoulder arthroplasty because of pain or functional impairment due to a proximal humeral nonunion. Twenty-five of the 27 shoulders with a mean 6-year follow-up period (range, 2-15 years) were included in the study. There were 19 women and 6 men, with a mean age of 65 years. The most frequent original fracture types were 2-part surgical neck (64%) and 3-part greater tuberosity fractures (28%). Twenty-one shoulders underwent hemiarthroplasty, and 4 underwent total shoulder arthroplasty. Shoulder arthroplasty resulted in significant pain relief, with mean pain scores decreasing from 4.6 to 1.8 points (P <.05). Mean active elevation improved from 41 degrees preoperatively to 88 degrees postoperatively (P <.05), and mean external rotation from 22 degrees to 38 degrees (P =.045). In 11 shoulders the greater tuberosity resorbed or was nonunited. Two of the 25 shoulders required another operation after the arthroplasty: one for periprosthetic humeral fracture and one for instability. Twenty shoulders were much better or better, and 5 were the same or worse. On the basis of a modified Neer result rating system, there was 1 excellent result, 11 satisfactory results, and 13 unsatisfactory results. Patients who have significant functional impairment from a nonunion of the humeral surgical neck with failed internal fixation, severe osteoporosis, cavitation of the humeral head, or secondary osteoarthritis may benefit from shoulder arthroplasty. Although function is not completely restored, pain relief and high levels of subjective satisfaction can be achieved.

Aged↗

Effects of a home exercise programme on shoulder pain and functional status in construction workers.

BACKGROUND: Repetitive or sustained elevated shoulder postures have been identified as a significant risk factor for occupationally related shoulder musculoskeletal disorders. Construction workers exposed to routine overhead work have high rates of shoulder pain that frequently progresses to functional loss and disability. Exercise interventions have potential for slowing this progression. AIMS: To evaluate a therapeutic exercise programme intended to reduce pain and improve shoulder function. METHODS: Construction worker volunteers were screened by history and clinical examination to test for inclusion/exclusion criteria consistent with shoulder pain and impingement syndrome. Sixty seven male symptomatic workers (mean age 49) were randomised into a treatment intervention group (n = 34) and a control group (n = 33); asymptomatic subjects (n = 25) participated as an additional control group. Subjects in the intervention group were instructed in a standardised eight week home exercise programme of five shoulder stretching and strengthening exercises. Subjects in the control groups received no intervention. Subjects returned after 8-12 weeks for follow up testing. RESULTS: The intervention group showed significantly greater improvements in the Shoulder Rating Questionnaire (SRQ) score and shoulder satisfaction score than the control groups. Average post-test SRQ scores for the exercise group remained below levels for asymptomatic workers. Intervention subjects also reported significantly greater reductions in pain and disability than controls. CONCLUSIONS: Results suggest a home exercise programme can be effective in reducing symptoms and improving function in construction workers with shoulder pain.

Adult↗

Shoulder outcome measures: a comparison of 6 functional tests.

BACKGROUND: Several shoulder function scores are used in research, with no universally adopted standard. This study compares 6 shoulder outcome scales. HYPOTHESIS: Correlations exist between shoulder outcome scales, allowing conversion between scales. Shoulder scales are correlated with age. STUDY DESIGN: Regression and correlation study. METHODS: Seventy subjects with shoulder pain completed 6 shoulder outcome scales. Pearson correlations were calculated between the total scores of the 6 instruments, between the components of the scales, and with age. Regression equations were calculated between scales. RESULTS: The range of r values for total scores was 0.495 < or = r < or = 0.770, P < or = .01. In general, a scale's components were themselves highly correlated and added little new information to the scale (0.260 < or = r < or = 0.705, P < or = .05). Most of the scale scores were highly correlated with age (0.291 < or = r < or = 0.582, P < or = .05). Constant's reported corrections for age reduced (from r = -0.582 to r = -0.250, P < .05) but did not eliminate age as a confounding variable. CONCLUSIONS: Correlations exist between shoulder outcome scales, but existing shoulder scales are not equivalent in their assessments of function; they contain redundant information and, in some cases, may reflect a patient's age better than his/her shoulder function. The utility of conversion equations is minimized as a result of low to moderate correlations between scales.

Female↗

Glenohumeral range of motion deficits and posterior shoulder tightness in throwers with pathologic internal impingement.

BACKGROUND: Alterations in glenohumeral range of motion, including increased posterior shoulder tightness and glenohumeral internal rotation deficit that exceeds the accompanying external rotation gain, are suggested contributors to throwing-related shoulder injuries such as pathologic internal impingement. Yet these contributors have not been identified in throwers with internal impingement. HYPOTHESIS: Throwers with pathologic internal impingement will exhibit significantly increased posterior shoulder tightness and glenohumeral internal rotation deficit without significantly increased external rotation gain. STUDY DESIGN: Case control study; Level of evidence, 3. METHODS: Eleven throwing athletes with pathologic internal impingement diagnosed using both clinical examination and a magnetic resonance arthrogram were demographically matched with 11 control throwers who had no history of upper extremity injury. Passive glenohumeral internal and external rotation were measured bilaterally with standard goniometry at 90 degrees of humeral abduction and elbow flexion. Bilateral differences in glenohumeral range of motion were used to calculate glenohumeral internal rotation deficit and external rotation gain. Posterior shoulder tightness was quantified as the bilateral difference in passive shoulder horizontal adduction with the scapula retracted and the shoulder at 90 degrees of elevation. Comparisons were made between groups with dependent t tests (P < .05). RESULTS: The throwing athletes with internal impingement demonstrated significantly greater glenohumeral internal rotation deficit (P = .03) and posterior shoulder tightness (P = .03) compared with the control subjects. No significant differences were observed in external rotation gain between groups (P = .16). CLINICAL RELEVANCE: These findings could indicate that a tightening of the posterior elements of the shoulder (capsule, rotator cuff) may contribute to impingement. The results suggest that management should include stretching to restore flexibility to the posterior shoulder.

Adult↗

Oxaprozin versus diclofenac in NSAID-refractory periarthritis pain of the shoulder.

OBJECTIVE: To evaluate the efficacy and safety of oxaprozin in comparison with diclofenac in patients with periarthritis pain of the shoulder previously unsuccessfully treated with nonsteroidal anti-inflammatory drugs other than diclofenac and oxaprozin. METHODS: In this open, multicentre, randomised, controlled study, eligible patients with periarthritis of the shoulder were randomised to receive either oxaprozin 1200 mg once daily (n = 49) or diclofenac 50 mg three times daily (n = 47). The treatment period was 15 +/- 1 days. The study was planned on a hypothesis of equivalence between the two study drugs. The primary study endpoint was the change from baseline at day 15 in the patient-assessed shoulder pain score. Secondary efficacy variables included investigator-assessed shoulder function, patient-assessed quality of life on the Short-Form-36 (SF-36) Acute Health Survey and both patients' and investigators' overall assessment of efficacy. RESULTS: At day 15, the mean changes in shoulder pain score from baseline in the oxaprozin and diclofenac groups were -5.85 +/- SD 4.62 and -5.54 +/- SD 4.41, respectively. The difference between the two groups was not statistically significant, confirming the hypothesis of the study that oxaprozin is as effective as diclofenac. Investigator-assessed shoulder function improved in both groups but more so in the oxaprozin group (p = 0.028 at day 15). Quality of life as measured by SF-36 total score was also improved in both treatment groups, with a trend toward greater improvement in the oxaprozin group. Furthermore, a significantly more favourable effect on the SF-36 'mental health' item was observed in oxaprozin compared with diclofenac-treated patients at day 15 (p = 0.0202). As assessed by investigators, the overall efficacy of oxaprozin was superior to that for diclofenac at visit 3 (8 +/- 1 days) (p = 0.0067). Patients also assessed the overall efficacy of oxaprozin as superior to that of diclofenac at visits 3 (8 +/- 1 days) (p = 0.0235) and 4 (15 +/- 1 days) (p = 0.0272). Only six adverse events, all of which were mild or moderate in intensity and occurred in four diclofenac recipients, were observed in the study. CONCLUSIONS: As expected, once-daily oxaprozin proved to be as effective as diclofenac three times daily in reducing the primary efficacy variable of patient-assessed shoulder pain score in patients with periarthritis of the shoulder refractory to previous treatments with other NSAIDs. Oxaprozin was shown to be superior to diclofenac in improving shoulder function and was considered by investigators and patients to have greater overall efficacy than diclofenac. In addition, oxaprozin showed a trend toward superior results in improving patients' quality of life compared with diclofenac. A trend towards better tolerability results for oxaprozin compared with diclofenac was also noted.

Anti-Inflammatory Agents, Non-Steroidal↗

Shoulder injuries from alpine skiing and snowboarding. Aetiology, treatment and prevention.

There has been a decrease in the overall injury rate and the rate of lower extremity injuries for alpine skiing, with a resultant increase in the ratio of upper extremity to lower extremity injuries. Upper extremity injuries account for 20 to 35% of all injuries during alpine skiing and nearly 50% of all injuries during snowboarding. The most common upper extremity injuries during skiing are sprain of the thumb metacarpal-phalangeal joint ulnar collateral ligament, and the most common in snowboarding is wrist fracture. Shoulder injuries from skiing and snowboarding have been less well characterised. With the increased ratio of upper to lower extremity injuries during alpine skiing and the boom in popularity of snowboarding, shoulder injuries will be seen with increasing frequency by those who care for alpine sport injuries. Shoulder injuries account for 4 to 11% of all alpine skiing injuries and 22 to 41% of upper extremity injuries. The rate of shoulder injuries during alpine skiing is 0.2 to 0.5 injuries per thousand skier-days. During snowboarding, shoulder injuries account for 8 to 16% of all injuries and 20 to 34% of upper extremity injuries. Falls are the most common mechanism of shoulder injury, in addition to pole planting during skiing and aerial manoeuvres during snowboarding. Common shoulder injuries during skiing and snowboarding are glenohumeral instability, rotator cuff strains, acromioclavicular separations and clavicle fractures. Less common shoulder injuries include greater tuberosity fractures, trapezius strains, proximal humerus fractures, biceps strains, glenoid fractures, scapula fractures, humeral head fractures, sterno-clavicular separations, acromion fractures and biceps tendon dislocation. Prevention of shoulder injuries during skiing and snowboarding may be possible through interventions in education and technique, conditioning and equipment and environment.

Adult↗

Anterior capsulolabral reconstruction for traumatic recurrent anterior shoulder dislocation.

The anterior capsulolabral reconstruction (ACLR) has been shown to yield satisfactory results predominantly in overhead athletes with atraumatic anterior shoulder instability. The purpose of this study was to assess the clinical results of patients who underwent ACLR for recurrent traumatic anterior shoulder dislocation. A retrospective review of 41 patients, mean age 29 (range: 16 to 55 years) who underwent ACLR for traumatic recurrent anterior shoulder dislocation was performed. All patients reported a traumatic anterior shoulder dislocation with subsequent recurrent instability. Seven patients had undergone previous shoulder stabilization surgery which had failed. The mean number of previous dislocations was 4.5 (range: 1 to 15). There were 31 males and 10 females, and the dominant arm was involved in 24 patients. In all cases, the capsulolabral complex was detached from the glenoid rim. The mean follow-up was 3.6 years (range: 15 to 80 months). All patients were evaluated by physical examination. The mean modified Rowe score was 93.6 (range: 65 to 100). There were 32 excellent, 5 good, 1 fair, and 2 poor results. Instability was eliminated in 38 patients (93%). Of 25 patients who engaged in recreational sports, all were able to return to their previous level of participation. One patient sustained a traumatic redislocation and underwent revision surgery. Two patients reported atraumatic recurrent subluxation with one requiring revision surgery due to persistent symptoms of instability. There was no loss of range of motion in comparison to preoperative values. Of the seven shoulders that had undergone previous surgery, all remain stable. These results indicate that a glenoid-sided capsulolabral reconstruction can restore shoulder stability in patients with recurrent traumatic anterior shoulder dislocation. Success rates comparable to those of other open anterior shoulder repair procedures can be achieved.

Adolescent↗

[Anterior instability of the shoulder associated with fracture of the coracoid process. Apropos of 3 cases].

PURPOSE OF THE STUDY: The aim of this paper is to present an unusual lesion associating anterior instability of the shoulder with a fracture of the horizontal part of the coracoid process. It emphasizes surgical treatment using the Latarjet procedure. MATERIAL AND METHODS: Three cases are presented: One case was a recurrent anterior dislocation of the shoulder associated with a fracture of the horizontal part of the coracoid process; an other case was a painful shoulder associated with pseudarthrosis of the coracoid process and a fracture of the anterior and inferior edge of the glenoid. In the last case there was a recurrent dislocation of the shoulder associated with a pseudarthrosis of the coracoid process detected intra-operatively. All the patients were operated on using the Latarjet's procedure using the fractured coracoid process. RESULTS: The three cases had a good result. DISCUSSION: The association of an anterior dislocation of the shoulder and a fracture of the coracoid process is very unusual. It is often unrecognized because of poor knowledge of this lesion or a poor quality of the radiograms performed in the emergency room. The most likely mechanism is a direct impact of the humeral head against the coracoid process during the dislocation. The fracture is located (as in our 3 cases) at the horizontal part of the coracoid process near its elbow and they are often associated lesions at the anterior and inferior edge of the glenoid. The diagnosis requires good quality radiograms and a Garth's view systematically performed after reducing the dislocation. When the shoulder is painful or unstable, surgical treatment is performed and the Latarjet's procedure takes care of the pseudarthrosis and the instability of the shoulder. CONCLUSION: Isolated fractures of the coracoid process are probably uncommon. When there is a fracture of the horizontal part of the coracoid process anterior instability of the shoulder should be suspected. This is the case when the shoulder has never been dislocated and when the standard radiograms are "normal" without "crossing lesions" at the anterior and inferior edge of the glenoid or at the humeral head (Hill-Sach lesion).

Adolescent↗

Etiologies of shoulder pain in cervical spinal cord injury.

A protocol including physical examination, plain radiography, and shoulder arthrography was designed to study prospectively the causes of shoulder pain in patients with cervical spinal cord injury. Twenty-four patients (30 shoulders) were studied and subdivided into acute and chronic groups. The causes of shoulder pain in the acute group of 11 patients (15 shoulders) included capsular contracture or capsulitis or both in 6 shoulders; rotator cuff tears in 4; anterior instability in 2; and rotator cuff impingement, osteoarthritis with osteonecrosis, and osteoarthritis in 1 each. Of 13 patients (15 shoulders) assigned to the chronic group, the diagnoses included anterior instability in 5 shoulders; multidirectional instability in 3; capsular contracture or capsulitis or both in 3; and Charcot arthropathy, rotator cuff tear, rotator cuff impingement, and scapular pain in 1 each. To prevent and treat shoulder pain, therapeutic protocols for these patients must be individualized after a correct diagnosis is made.

Adult↗

Corticosteroid injections for shoulder pain.

BACKGROUND: While many treatments, including corticosteroid injections in and around the shoulder, are advocated to be of benefit for shoulder pain, few are of proven efficacy. This review of corticosteroid injections for shoulder pain is one in a series of reviews of varying interventions for shoulder disorders. OBJECTIVES: To determine the efficacy and safety of corticosteroid injections in the treatment of adults with shoulder pain. SEARCH STRATEGY: MEDLINE, EMBASE, CINAHL, Central and Science Citation Index were searched up to and including June 2002. SELECTION CRITERIA: Randomised and pseudo-randomised trials in all languages of corticosteroid injections compared to placebo or another intervention, or of varying types and dosages of steroid injection in adults with shoulder pain. Specific exclusions were duration of shoulder pain less than three weeks, rheumatoid arthritis, polymyalgia rheumatica and fracture. DATA COLLECTION AND ANALYSIS: Trial inclusion and methodological quality was assessed by two independent reviewers according to predetermined criteria. Results are presented separately for rotator cuff disease, adhesive capsulitis, full thickness rotator cuff tear and mixed diagnoses, and, where possible, combined in meta-analysis. MAIN RESULTS: Twenty-six trials met inclusion criteria. The number, site and dosage of injections varied widely between studies. The number of participants per trial ranged from 20 to 114 (median 52 participants). Methodological quality was variable. For rotator cuff disease, subacromial steroid injection was demonstrated to have a small benefit over placebo in some trials however no benefit of subacromial steroid injection over NSAID was demonstrated based upon the pooled results of three trials. For adhesive capsulitis, two trials suggested a possible early benefit of intra-articular steroid injection over placebo but there was insufficient data for pooling of any of the trials. One trial suggested short-term benefit of intra-articular corticosteroid injection over physiotherapy in the short-term (success at seven weeks RR=1.66 (1.21, 2.28). REVIEWER'S CONCLUSIONS: Despite many RCTs of corticosteroid injections for shoulder pain, their small sample sizes, variable methodological quality and heterogeneity means that there is little overall evidence to guide treatment. Subacromial corticosteroid injection for rotator cuff disease and intra-articular injection for adhesive capsulitis may be beneficial although their effect may be small and not well-maintained. There is a need for further trials investigating the efficacy of corticosteroid injections for shoulder pain. Other important issues that remain to be clarified include whether the accuracy of needle placement, anatomical site, frequency, dose and type of corticosteroid influences efficacy.

Adrenal Cortex Hormones↗