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Background: The purpose of this study was to examine the accuracy of external rotation in neutral (0° external position) and in shortened position (45° external position) in relation to rotator cuff tear size, tendon reparability, and other clinical, surgical, and imaging findings., Methods: This was a prospective blinded diagnostic study of consecutive surgical candidates for rotator cuff repair using magnetic resonance imaging and arthroscopic surgery as the "gold standards." The area under a receiver operating characteristic (AUROC) curve was calculated for each position., Results: Eighty-five patients (35 female [41%] and 50 male [59%]; age, 65 years [standard deviation = 10]) were included. Sixty patients (71%) had a minor tear (4 small, 56 moderate), and 25 patients (29%) had a major tear (17 large and 8 massive). Seventy patients (82%) had a full repair, and 15 (18%) patients underwent a partial repair. There were 26 (31%) associated full-thickness tears of the infraspinatus. The isometric strength testing in both positions had good to excellent accuracy (range, 0.80-0.90) for detecting reparability, tear retraction, infraspinatus atrophic changes observed by the clinician, and infraspinatus fatty infiltration on magnetic resonance images. The shortened position had an overall higher accuracy than the neutral position and was more clinically useful for detecting an infraspinatus full-thickness tear (AUROC = 0.84 vs 0.78) and rotator cuff tear size (AUROC = 0.80 vs. 0.75)., Conclusions: The isometric external rotation is an accurate test in diagnosing different aspects of rotator cuff disease and specifically of the infraspinatus muscle. The isometric strength at the shortened position was a better predictor of clinical, surgical, and imaging findings., (Copyright © 2017 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)

Background: Expediting rotator cuff surgery is expected to facilitate recovery and return to work in injured workers. This case-control study examined the effect of expedited rotator cuff surgery on recovery and work status in injured workers., Materials and Methods: Injured workers who had undergone an expedited rotator cuff surgery funded by parallel-pay insurance (study group) were compared with workers who had used the public health insurance (control group) while adjusting for sex, age, severity of pathology, and follow-up period. Disability was measured by the American Shoulder and Elbow Surgeons (ASES) Standardized Assessment Form score. The percentage of patients who exceeded the minimal clinically important difference of 17 points in the ASES was calculated., Results: The study group waited less time to have surgery than the control group (P < .0001), reported less disability after surgery, and had a higher number of patients whose improvement exceeded the minimal clinically important difference (119 vs. 65, P < .0001). The study group was more likely to be working at the time of the final follow-up (P < .0001). The final multivariable regressions, which adjusted for unmatched variables, such as dominant side involvement, mechanism of injury, and associated operations that were different between groups, were consistent with univariable analyses indicating superior results in the study group., Conclusions: Injured workers who underwent expedited rotator cuff surgery reported less disability and had a more successful return to work after surgery than injured workers who waited longer for specialist assessment and surgery within the public health system., (Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)

Background: There is limited information on the validity of magnetic resonance imaging (MRI) in detection of biceps disease. The purpose of this study was to examine the measurement properties of noncontrasted MRI in diagnosis of biceps disease using arthroscopic surgery as the "gold standard.", Materials and Methods: Prospectively collected surgical data of patients with impingement syndrome or rotator cuff tear, with biceps disease (study group) or without biceps disease (control group), were reviewed. MRI reports of radiologists with fellowship training in musculoskeletal imaging were retrospectively reviewed and compared with surgical findings., Results: Data of 183 (130 study and 53 control) patients (73 women [40%], 110 men [60%]; mean age, 62 years [standard deviation, 9]) who had undergone arthroscopic rotator cuff-related surgery during a period of 11 years were used for analysis. Sensitivity and specificity of MRI for detection of full tears of the biceps tendon were 0.54 and 0.98, respectively. Sensitivity and specificity were 0.27 and 0.86 for partial tears of the biceps tendon, respectively. For biceps subluxation or dislocation, sensitivity was 1.00 and specificity was 0.83. The areas under the receiver operating characteristic curves, which quantify the overall accuracy of the tests, were 0.57, 0.75, and 0.92 for partial tear, full tear, and instability of the biceps tendon, respectively., Conclusions: Noncontrasted MRI has a low sensitivity and high specificity for detection of full-thickness tears of the biceps tendon. It is highly sensitive for diagnosis of instability of the long head of the biceps. However, its usefulness for diagnosis of partial tears of the biceps tendon remains limited., (Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)

Background: This prospective longitudinal study compared clinical and radiologic outcomes of total shoulder arthroplasty (TSA) using 3 different prosthetic designs, the Neer II system, the Bigliani-Flatow (BF), and a stemless prosthesis, the Total Evolutive Shoulder System (TESS)., Materials and Methods: Patients with advanced osteoarthritis of the glenohumeral joint who underwent TSA were followed up for 2 years. Four patient-oriented disability outcomes were used. The clinical data collected before surgery and at follow-up assessments during a 2-year period included active range of motion (ROM) in 6 directions and strength. Radiographic signs of glenoid and humeral component loosening were recorded. The incidence of humeral head subluxation was documented., Results: Seventy-four patients completed the study. There was a significant improvement in the 4 disability measures, ROM, and strength at 2 years in all 3 groups (P < .0001). Active external rotation at 90° abduction was statistically significantly lower in the Neer II group (P = .001). The incidence of lucent lines around the glenoid component was higher in the Neer II group (P = .0002). No statistically significant relationship was seen between type of prosthesis and patient satisfaction (P > 0.05)., Conclusions: The 3 types of TSA prostheses used in this study all provided significant improvement in pain and function and were associated with high patient satisfaction. The Neer II was associated with less active external rotation and more lucent lines., (Copyright © 2013 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved.)

Background: The purpose of this matched case-control study was to examine the impact of an active compensation claim following a work-related shoulder injury on reporting disability, as measured by subjective and objective outcomes at 1 year postoperatively., Methods: Data of 517 consecutive patients who had undergone a decompression or rotator cuff repair were reviewed. One-hundred and ten patients were on compensation related to their shoulder problems. These patients were matched with a historical control group (patients without a compensation claim) based on age, sex, and level of pathology. Outcome measures used were the Western Ontario Rotator Cuff Index, the American Shoulder and Elbow Score, and the Constant-Murley score. Nonparametric Wilcoxon and Ranked sign tests were conducted to examine the difference between and within groups., Results: Data of 220 patients were used for analysis (mean age, 48+/-10; range, 20-69). Out of 110 patients in each group, 45 patients (41%) had undergone a repair and 65 (59%) had undergone a decompression surgery (acromioplasty with or without resection of lateral clavicle). Both groups improved significantly regardless of their claim status (P < .0001). There was a significant difference between injured and noninjured workers at baseline, 1-year postoperatively, and in overall improvement with the compensation group having a significantly higher level of disability., Conclusion: Our results show that although injured workers report a statistically significant higher level of disability before and after rotator cuff surgery, they still show significant improvement 1 year following decompression or repair of the rotator cuff tendon(s)., (2010 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved.)

The purpose of this prospective repeated-measures outcomes study was to investigate the construct validity and sensitivity to change of a newly developed outcome measure, the Western Ontario Rotator Cuff Index (WORC) in a population of patients seen at a tertiary shoulder center. A total of 154 subjects (66 women and 88 men; mean age, 48 years [SD, 14.80 years]) agreed to participate in the study. Of these, 50 patients (16 women and 34 men; mean age, 50 years [SD, 14.36 years]) met the criteria for surgery. The Pearson correlation coefficients between the initial scores and the change scores at 6 months postoperatively of the WORC, Constant-Murley shoulder form, and American Shoulder and Elbow Surgeons standardized shoulder assessment form were high (P < .01). The WORC was sensitive to detect change: F = 28.041 and P < .000 at 3 months and F = 66.927 and P < .000 at 6 months postoperatively. The results of this study support the validity of the WORC for use in patients with rotator cuff pathology.