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The reverse shoulder arthroplasty (RSA) was originally designed for cuff tear arthropathy (CTA). Over time, the indications have expanded to rheumatoid arthritis (RA). This study aimed to compare the outcomes of RSA in patients with RA and CTA to determine if there is any impact on clinical and radiographic outcomes. In this retrospective comparative study (performed from August 2010 to March 2017), 61 shoulders from 59 consecutive patients (RA group: 24 patients [26 shoulders], CTA group: 35 patients [35 shoulders]) who underwent primary RSA, were included. The average follow-up period was 31 months (range, 24-64 months). Patients were assessed with the use of the visual analog scale pain score, the American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form score, the Single Assessment Numeric Evaluation score, range of motion (ROM), and imaging studies included the β angle, glenoid component superior tilt, and scapular notching. The clinical results improved significantly in both groups, but there was no statistically significant difference between the RA group and the CTA group. Significant intergroup differences were observed regarding the β angle (73° ± 11° for the RA group vs. 85° ± 8° for the CTA group; P <.001) and glenoid component superior tilt (12 cases for the RA group vs. 4 cases for the CTA group; P <.001) at the final follow-up. The Scapular notching was observed in 19 (73%) and 24 (69%) shoulders in the RA and CTA groups, respectively (P =.662). There were 7 (27%) complications in the RA group and 3 (9%) in the CTA group. Fractures involving greater tuberosity, lesser tuberosity, acromion, glenoid, and peri-implant were observed either intraoperatively or postoperatively in 6 shoulders in the RA group and in 3 shoulders in the CTA group. One case of transient musculocutaneous nerve palsy in the RA group was noted. None of the patients required revision surgery for any reason. Compared with CTA patients, RA patients achieved similar clinical outcomes following RSA. However, surgeons should pay attention to the positioning of the glenoid component during the surgery and the risk of intraoperative fractures in RA patients. [ABSTRACT FROM AUTHOR]

Background Context: It has been reported that newly developed osteoporotic vertebral compression fractures (OVCFs) occur at a relatively high frequency after treatment. While there are many reports on possible risk factors, these have not yet been clearly established.Purpose: The purpose of this study was to investigate the risk factors for newly developed OVCFs after treatment by vertebroplasty (VP), kyphoplasty (KP), or conservative treatment.Study Design/setting: A retrospective comparative study.Patient Sample: One hundred thirty-two patients who had radiographic follow-up data for one year or longer among 356 patients who were diagnosed with OVCF and underwent VP, KP or conservative treatment between March 2007 and February 2016.Outcome Measures: All records were examined for age, sex, body mass index (BMI), rheumatoid arthritis and other medical comorbidities, osteoporosis medication, bone mineral density (BMD), history of vertebral and nonvertebral fractures, treatment methods used, level of fractures, and presence of multiple fracture sites.Methods: Patients were divided into those who manifested new OVCF (Group A) and those who did not (Group B). For the risk factor analysis, student's t-tests and chi-square tests were used in univariate analysis. Multivariate logistic regression analysis was carried out on variables with a p<.1 in the univariate analysis.Results: Newly developed OVCFs occurred in 46 of the 132 patients (34.8%). Newly developed OVCF increased significantly with factors such as average age (p=.047), low BMD T-score of the lumbar spine (p=.04) and of the femoral neck (p=.046), advanced age (>70 years) (p=.011), treatment by cement augmentation (p=.047) and low compliance with osteoporosis medication (p=.029). In multivariate regression analysis, BMD T-score of the lumbar spine (p=.009) and treatment by cement augmentation (p=.044) showed significant correlations with the occurrence of new OVCFs with a predictability of 71.4%.Conclusion: Osteoporotic vertebral compression fracture patients with low BMD T-score of the lumbar spine and those who have been treated by cement augmentation have an increased risk of new OVCFs after treatment and, therefore, require especially careful observation and attention. [ABSTRACT FROM AUTHOR]

Aim To assess the incidence rate of carpal tunnel syndrome ( CTS) in patients with rheumatoid arthritis ( RA) and investigate the correlations between CTS and disease activity and duration in patients with RA. Materials and methods This retrospective cohort study was conducted to assess the incidence rate of CTS in 1070 patients with RA who had visited our rheumatism center between March 2001 and May 2013, and had participated in follow-up at least once over a 5-year period. We also investigated duration of RA and C-reactive protein ( CRP) levels at time of CTS occurrence to identify correlations between CTS occurrence and duration of RA, and disease activity of RA. Results The cumulative incidence for 12 years of CTS in patients with RA was 6.8% (12/176), and 37 cases of CTS occurred in 1070 patients with RA. The incidence rate of CTS in patients with RA was found to be 4.18 per 1000 person-years (37 in 8849 person-years). There was no statistically significant correlation between CTS occurrence and duration of RA, and no positive correlation between CTS occurrence and CRP levels. Conclusion Our incidence rate of CTS in patients with RA was similar to the incidence rate of CTS in the general population (0.3-5.0 per 1000 person-years). CTS occurrence did not correlate with duration of RA and had no positive correlation with disease activity of RA. [ABSTRACT FROM AUTHOR]