scholarly journals Restoration of External Rotation Following a Lateral Approach for Glenoid Bony Increased-Offset Reverse Shoulder Arthroplasty

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Shinji Imai
Keyword(s):  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Reverse Shoulder Arthroplasty ◽  
Lateral Approach

Anatomic versus reverse shoulder arthroplasty: a mid-term follow-up comparison

2020 ◽  
pp. 175857322092115
Author(s):  
Bradley S Schoch ◽  
Joseph J King ◽  
Joseph Zuckerman ◽  
Thomas W Wright ◽  
Chris Roche ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Patient Reported Outcomes ◽  
External Rotation ◽  
Reverse Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Reoperation Rate ◽  
Patient Reported ◽  
Total Shoulder Arthroplasties ◽  
Shoulder Arthroplasties

Background Anatomic total shoulder arthroplasty improves pain and function with a reported reoperation rate of approximately 1% per year. With improved glenoid fixation, reverse shoulder arthroplasty implants may outperform anatomic total shoulder arthroplasty. We evaluate the functional outcomes and reoperation rate of anatomic total shoulder arthroplasty versus reverse shoulder arthroplasty at a minimum eight-year follow-up or revision. Methods Between 2005 and 2010, 187 shoulders (137 anatomic total shoulder arthroplasty, 50 reverse shoulder arthroplasty) were retrospectively reviewed at a mean of 8.8 years. The mean age at surgery was 67 years. Females were more commonly treated with reverse shoulder arthroplasty. Both groups had similar body mass index and comorbidities. Outcome measures evaluated included abduction, forward elevation, external rotation, internal rotation, Simple Shoulder Test, Constant score, American Shoulder and Elbow Score, University of California Los Angeles Shoulder score, and Shoulder Pain and Disability Index. Results At follow-up, anatomic total shoulder arthroplasty demonstrated greater overhead range of motion and external rotation. All patient-reported outcomes remained similar between groups. Reverse shoulder arthroplasty patients were more likely to rate shoulders as much better or better after surgery (90% versus 67%, p = 0.004). Complications were observed in 24% of anatomic total shoulder arthroplasties and 8% of reverse shoulder arthroplasties (p = 0.02). Reoperation was more common in anatomic total shoulder arthroplasties (23% versus 4%, p = 0.003). Discussion At mid-to-long-term follow-up, reverse shoulder arthroplasties demonstrated significantly fewer complications and reoperations than anatomic total shoulder arthroplasties. Despite similar patient-reported outcomes, reverse shoulder arthroplasty patients were more likely to be satisfied with their shoulder.

scholarly journals Bony increased-offset reverse shoulder arthroplasty: A meta-analysis of the available evidence

2020 ◽  
pp. 175857322091684
Author(s):  
Richard Dimock ◽  
Mohamed Fathi Elabd ◽  
Mohamed Imam ◽  
Mark Middleton ◽  
Arnaud Godenèche ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Reverse Shoulder Arthroplasty ◽  
Case Series ◽  
Autogenous Bone ◽  
Radiographic Outcomes ◽  
Outcome Scores

Background Reverse shoulder arthroplasty (RSA) has revolutionized the management of many shoulder pathologies. Lateralization has become favourable to combat complications (e.g. notching, compromised external rotation), using a metallic, or autogenous bone-graft baseplates – bony increased-offset reverse shoulder arthroplasty (BIO-RSA). We systematically reviewed the literature to determine: Does BIO-RSA improve range of motion and outcome scores? Are notching rates decreased? Does the graft heal? Methods All available prospective studies, trials and case series reporting on BIO-RSA were included. Outcomes were grouped into outcome scores, range of motion and radiographic outcomes. Data were pooled and statistical analysis performed. Results Eight studies reported on 385 RSA – 235 BIO-RSA and 150 standard-RSA (STD-RSA). Follow-up was 20–36 months; average age 74 years. Outcome scores: Constant-Murley and SSV scores showed statistically significant post-operative benefit of BIO-RSA (mean-difference 4.0 (95% confidence interval (CI): 0.79,7.1) and 6.8 (95% CI: 3.8, 9.9)). No Minimal Clinically Importance Difference was surpassed. Range of motion: No difference was found in any direction. Notching: Notching was less likely with BIO-RSA (odds ratio 0.19 (95% CI: 0.10, 0.38)). Healing and loosening: 92% grafts fully healed/incorporated. Loosening rate was 2.4%. Conclusions Literature on BIO-RSA is limited with only one randomised controlled trial (RCT). Weak evidence exists for improved outcome scores. Range of motion is equivocal. Notching rates are significantly lower in BIO-RSA. The graft usually heals.

scholarly journals Glenoid loosening and migration in reverse shoulder arthroplasty

2019 ◽  
Vol 101-B (4) ◽  
pp. 461-469 ◽  
Author(s):  
A. Lädermann ◽  
A. J. Schwitzguebel ◽  
T. B. Edwards ◽  
A. Godeneche ◽  
L. Favard ◽  
...  
Keyword(s):  
Conservative Treatment ◽  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Constant Score ◽  
Reverse Shoulder Arthroplasty ◽  
Multivariable Analysis ◽  
Range Of Movement ◽  
Original Cohort ◽  
Glenoid Loosening

Aims The aim of this study was to report the outcomes of different treatment options for glenoid loosening following reverse shoulder arthroplasty (RSA) at a minimum follow-up of two years. Patients and Methods We retrospectively studied the records of 79 patients (19 men, 60 women; 84 shoulders) aged 70.4 years (21 to 87) treated for aseptic loosening of the glenosphere following RSA. Clinical evaluation included pre- and post-treatment active anterior elevation (AAE), external rotation, and Constant score. Results From the original cohort, 29 shoulders (35%) were treated conservatively, 27 shoulders (32%) were revised by revision of the glenosphere, and 28 shoulders (33%) were converted to hemiarthroplasty. At last follow-up, conservative treatment and glenoid revision significantly improved AAE, total Constant score, and pain, while hemiarthroplasty did not improve range of movement or clinical scores. Multivariable analysis confirmed that conservative treatment and glenoid revision achieved similar improvements in pain (glenoid revision vs conservative, beta 0.44; p = 0.834) but that outcomes were significantly worse following hemiarthroplasty (beta -5.00; p = 0.029). Conclusion When possible, glenoid loosening after RSA should first be treated conservatively, then by glenosphere revision if necessary, and last by salvage hemiarthroplasty Cite this article: Bone Joint J 2019;101-B:461–469.

Glenosphere design affects range of movement and risk of friction-type scapular impingement in reverse shoulder arthroplasty

2018 ◽  
Vol 100-B (9) ◽  
pp. 1182-1186 ◽  
Author(s):  
B. S. Werner ◽  
J. Chaoui ◽  
G. Walch
Keyword(s):  
Internal Rotation ◽  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Reverse Shoulder Arthroplasty ◽  
Large Diameter ◽  
Glenoid Component ◽  
Range Of Movement ◽  
Scapular Notching ◽  
Component Size ◽  
Centre Of Rotation

Aims Scapular notching is a frequently observed radiographic phenomenon in reverse shoulder arthroplasty (RSA), signifying impingement of components. The purposes of this study were to evaluate the effect of glenoid component size and glenosphere type on impingement-free range of movement (ROM) for extension and internal and external rotation in a virtual RSA model, and to determine the optimal configuration to reduce the incidence of friction-type scapular notching. Materials and Methods Preoperative CT scans obtained in 21 patients (three male, 18 female) with primary osteoarthritis were analyzed using modelling software. Two concurrent factors were tested for impingement-free ROM and translation of the centre of rotation: glenosphere diameter (36 mm vs 39 mm) and type (centred, 2 mm inferior eccentric offset, 10° inferior tilt). Results Glenosphere size was most predictive of increased extension and external rotation, whereas lateralization of the centre of rotation was the most predictive factor for internal rotation. A larger diameter of glenosphere combined with a 10° tilted configuration demonstrated superior values for extension and external rotation, whereas the eccentric component improved internal rotation by a mean 8.9° (standard deviation 2.7°) compared with a standard concentric glenosphere. Conclusion Glenosphere configuration can be modified to increase range of movement in RSA. Friction-type scapular notching was most effectively reduced by use of a large-diameter glenosphere with 10° inferior tilt. Cite this article: Bone Joint J 2018;100-B:1182–6.

scholarly journals What is a Successful Outcome Following Reverse Total Shoulder Arthroplasty?

2010 ◽  
Vol 4 (1) ◽  
pp. 157-163 ◽  
Author(s):  
Jean-Sébastien Roy ◽  
Joy C. MacDermid ◽  
Danny Goel ◽  
Kenneth J. Faber ◽  
George S. Athwal ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Clinical Outcome ◽  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Reverse Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Joint Destruction ◽  
Successful Outcome ◽  
Simple Shoulder Test ◽  
Constant Murley Score

Background:With variations in joint destruction, patient expectations and health status, it can be difficult to interpret outcomes following arthroplasty. The purpose of this study was to determine the relationships between different outcome indicators in 44 patients followed for two years after a reverse shoulder arthroplasty. Methods:Prospectively collected outcomes included the Constant-Murley score, Simple Shoulder Test (SST), range of motion (ROM), strength, patient satisfaction with their care and independent clinician case-review to determine global clinical outcome. Continuous outcomes were divided in two subgroups according to definitions of functional outcomes. Cohen’s kappa was used to evaluate agreement between outcomes. Pearson correlations were used to quantify interrelationships. Results:Although 93% of patients were substantially satisfied, fewer had good results on the other outcomes: 68% on global clinical outcome, 46% on SST and 73% on Constant-Murley score. The SST demonstrated better than chance agreement with Constant-Murley score, ROM in flexion, abduction and external rotation, and strength in external rotation. No agreement between satisfaction and other outcomes were observed. Significant correlations were observed between Constant-Murley score and SST (r = 0.78). The Constant-Murley score and SST demonstrated variable correlation with ROM and strength in flexion, abduction, internal and external rotation (0.38 < r < 0.73); the highest correlations being observed with shoulder elevation ROM (r > 0.50). Conclusions:Results show that outcome varies according to patient perspective and assessment methods. Patient satisfaction with their care was related to neither self-reported nor physical impairment outcomes. Positive patient ratings of satisfaction may not necessarily be evidence of positive outcomes.

scholarly journals Bipolar lateralization in reverse shoulder arthroplasty for avoidance of scapular notching

2020 ◽  
Vol 15 (3) ◽  
pp. 207-212
Author(s):  
Patric Raiss ◽  
Rainer Neumann
Keyword(s):  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Constant Score ◽  
Reverse Shoulder Arthroplasty ◽  
Complication Rates ◽  
Level Of Evidence ◽  
Scapular Notching ◽  
Neck Shaft Angle ◽  
Shoulder Flexion

Abstract Introduction Reverse shoulder arthroplasty (RSA) has become a well-established treatment option for multiple disorders of the shoulder joint. In recent years, implant designs and configurations have been modified in order to improve function and avoid complications. Lateralization on the glenoid and the humeral side has been described to improve function and decrease radiographic scapular notching. Data on the clinical and radiographic results of bipolar lateralization in RSA are lacking. Methods In 38 cases, RSA was performed using an uncemented humeral short-stem component with a 145° neck–shaft angle in combination with bone lateralization on the glenoid side (Bony Increased-Offset Reversed Shoulder Arthroplasty, BIO-RSA; Wright Medical Inc., Memphis, TN, USA). Mean follow-up was 19 months (range 12–34 months). Patients were followed clinically using the Constant score as well as range of motion for shoulder flexion and external rotation. Radiographs in two different plains were analyzed for implant seating and the occurrence of scapular notching. Results There was a significant increase in all measured clinical parameters. Forward flexion increased from a mean of 75° preoperatively to 151° postoperatively, and mean Constant score increased from 21 to 71 points postoperatively (p < 0.001). Glenoid notching of grade 1 according to Sirveuax was observed in 3 out of 35 cases (9%); no grade 2, 3, or 4 notching was present. Revision surgery was necessary in one case (3%). Conclusion RSA with bipolar lateralization leads to excellent clinical outcomes, low complication rates, and low rates of radiographic scapular notching. Longer follow-up and prospective randomized trials are needed. Level of evidence Level IV.

scholarly journals Effect of critical shoulder angle, glenoid lateralization, and humeral inclination on range of movement in reverse shoulder arthroplasty

2019 ◽  
Vol 8 (8) ◽  
pp. 378-386 ◽  
Author(s):  
Alexandre Lädermann ◽  
Eileen Tay ◽  
Philippe Collin ◽  
Sébastien Piotton ◽  
Chih-Hao Chiu ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Reverse Shoulder Arthroplasty ◽  
Subacromial Space ◽  
Range Of Movement ◽  
Neck Shaft Angle ◽  
Critical Shoulder Angle ◽  
Flexion Extension ◽  
The Impact ◽  
Shoulder Angle

Objectives To date, no study has considered the impact of acromial morphology on shoulder range of movement (ROM). The purpose of our study was to evaluate the effects of lateralization of the centre of rotation (COR) and neck-shaft angle (NSA) on shoulder ROM after reverse shoulder arthroplasty (RSA) in patients with different scapular morphologies. Methods 3D computer models were constructed from CT scans of 12 patients with a critical shoulder angle (CSA) of 25°, 30°, 35°, and 40°. For each model, shoulder ROM was evaluated at a NSA of 135° and 145°, and lateralization of 0 mm, 5 mm, and 10 mm for seven standardized movements: glenohumeral abduction, adduction, forward flexion, extension, internal rotation with the arm at 90° of abduction, as well as external rotation with the arm at 10° and 90° of abduction. Results CSA did not seem to influence ROM in any of the models, but greater lateralization achieved greater ROM for all movements in all configurations. Internal and external rotation at 90° of abduction were impossible in most configurations, except in models with a CSA of 25°. Conclusion Postoperative ROM following RSA depends on multiple patient and surgical factors. This study, based on computer simulation, suggests that CSA has no influence on ROM after RSA, while lateralization increases ROM in all configurations. Furthermore, increasing subacromial space is important to grant sufficient rotation at 90° of abduction. In summary, increased lateralization of the COR and increased subacromial space improve ROM in all CSA configurations. Cite this article: A. Lädermann, E. Tay, P. Collin, S. Piotton, C-H Chiu, A. Michelet, C. Charbonnier. Effect of critical shoulder angle, glenoid lateralization, and humeral inclination on range of movement in reverse shoulder arthroplasty. Bone Joint Res 2019;8:378–386. DOI: 10.1302/2046-3758.88.BJR-2018-0293.R1.

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