scholarly journals Factors Influencing Acromial and Scapular Spine Strain after Reverse Total Shoulder Arthroplasty: A Systematic Review of Biomechanical Studies

2022 ◽  
Vol 11 (2) ◽  
pp. 361
Author(s):  
Alexander Paszicsnyek ◽  
Olivia Jo ◽  
Harshi Sandeepa Rupasinghe ◽  
David C. Ackland ◽  
Thomas Treseder ◽  
...  
Keyword(s):  
Systematic Review ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Design Parameters ◽  
Functional Impairments ◽  
Coracoacromial Ligament ◽  
Factors Associated ◽  
Scapular Spine ◽  
Reverse Total Shoulder

Background: Acromial and scapular spine fractures after reverse total shoulder arthroplasty (RTSA) can be devastating complications leading to substantial functional impairments. The purpose of this study was to review factors associated with increased acromial and scapular spine strain after RTSA from a biomechanical standpoint. Methods: A systematic review of the literature was conducted based on PRISMA guidelines. PubMed, Embase, OVID Medline, and CENTRAL databases were searched and strict inclusion and exclusion criteria were applied. Each article was assessed using the modified Downs and Black checklist to appraise the quality of included studies. Study selection, extraction of data, and assessment of methodological quality were carried out independently by two of the authors. Only biomechanical studies were considered. Results: Six biomechanical studies evaluated factors associated with increased acromial and scapular spine strain and stress. Significant increases in acromial and scapular spine strain were found with increasing lateralization of the glenosphere in four of the included studies. In two studies, glenosphere inferiorization consistently reduced acromial strain. The results concerning humeral lateralization were variable between four studies. Humeral component neck-shaft angle had no significant effect on acromial strain as analysed in one study. One study showed that scapular spine strain was significantly increased with a more posteriorly oriented acromion (55° vs. 43°; p < 0.001). Another study showed that the transection of the coracoacromial ligament increased scapular spine strain in all abduction angles (p < 0.05). Conclusions: Glenoid lateralization was consistently associated with increased acromial and scapular spine strain, whereas inferiorization of the glenosphere reduced strain in the biomechanical studies analysed in this systematic review. Humeral-sided lateralization may increase or decrease acromial or scapular spine strain. Independent of different design parameters, the transection of the coracoacromial ligament resulted in significantly increased strains and scapular spine strains were also increased when the acromion was more posteriorly oriented. The results found in this systematic review of biomechanical in-silico and in-vitro studies may help in the surgical planning of RTSA to mitigate complications associated with acromion and scapular spine fracture.

Complication and revision rates after reverse total shoulder revision from hemiarthroplasty: a systematic review

2021 ◽  
pp. 175857322110193
Author(s):  
Arjun K Reddy ◽  
Jake X Checketts ◽  
B Joshua Stephens ◽  
J Michael Anderson ◽  
Craig M Cooper ◽  
...  
Keyword(s):  
Systematic Review ◽  
Shoulder Arthroplasty ◽  
Revisional Surgery ◽  
Total Shoulder Arthroplasty ◽  
Surgical Site Infections ◽  
Total Sample ◽  
Reverse Total Shoulder Arthroplasty ◽  
Common Complication ◽  
Humeral Component ◽  
Reverse Total Shoulder

Background Thus, the purpose of the present study was to (1) characterize common postoperative complications and (2) quantify the rates of revision in patients undergoing hemiarthroplasty to reverse total shoulder arthroplasty revisional surgery. We hypothesize that hardware loosenings will be the most common complication to occur in the sample, with the humeral component being the most common loosening. Methods This systematic review adhered to PRISMA reporting guideline. For our inclusion criteria, we included any study that contained intraoperative and/or postoperative complication data, and revision rates on patients who had undergone revision reverse total shoulder arthroplasty due to a failed hemiarthroplasty. Complications include neurologic injury, deep surgical site infections, hardware loosening/prosthetic instability, and postoperative fractures (acromion, glenoid, and humeral fractures). Results The study contained 22 studies that assessed complications from shoulders that had revision reverse total shoulder arthroplasty from a hemiarthroplasty, with a total sample of 925 shoulders. We found that the most common complication to occur was hardware loosenings (5.3%), and of the hardware loosenings, humeral loosenings (3.8%) were the most common. The revision rate was found to be 10.7%. Conclusion This systematic review found that revision reverse total shoulder arthroplasty for failed hemiarthroplasty has a high overall complication and reintervention rates, specifically for hardware loosening and revision rates.

Reverse total shoulder arthroplasty

2021 ◽  
pp. 1-9
Author(s):  
Eleanor G. Burden ◽  
Timothy J. Batten ◽  
Christopher D. Smith ◽  
Jonathan P. Evans
Keyword(s):  
Systematic Review ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Implant Design ◽  
Complication Rates ◽  
Scapular Notching ◽  
Cuff Tear ◽  
Patient Reported ◽  
Reverse Total Shoulder

Aims This systematic review asked which patterns of complications are associated with the three reverse total shoulder arthroplasty (RTSA) prosthetic designs, as classified by Routman et al, in patients undergoing RTSA for the management of cuff tear arthropathy, massive cuff tear, osteoarthritis, and rheumatoid arthritis. The three implant design philosophies investigated were medial glenoid/medial humerus (MGMH), medial glenoid/lateral humerus (MGLH), and lateral glenoid/medial humerus (LGMH). Methods A systematic review of the literature was performed via a search of MEDLINE and Embase. Two reviewers extracted data on complication occurrence and patient-reported outcome measures (PROMs). Meta-analysis was conducted on the reported proportion of complications, weighted by sample size, and PROMs were pooled using the reported standardized mean difference (SMD). Quality of methodology was assessed using Wylde’s non-summative four-point system. The study was registered with PROSPERO (CRD42020193041). Results A total of 42 studies met the inclusion and exclusion criteria. Rates of scapular notching were found to be significantly higher in MGMH implants (52% (95% confidence interval (CI) 40 to 63)) compared with MGLH ((18% (95% CI 6 to 34)) and LGMH (12% (95% CI 3 to 26)). Higher rates of glenoid loosening were seen in MGMH implants (6% (95% CI 3 to 10)) than in MGLH implants (0% (95% CI 0 to 2)). However, strength of evidence for this finding was low. No significant differences were identified in any other complication, and there were no significant differences observed in PROMs between implant philosophies. Conclusion This systematic review has found significant improvement in PROMS and low complication rates across the implant philosophies studied. Scapular notching was the only complication found definitely to have significantly higher prevalence with the MGMH implant design.

scholarly journals Effectiveness of formal physical therapy following total shoulder arthroplasty: A systematic review

2018 ◽  
Vol 12 (2) ◽  
pp. 136-143 ◽  
Author(s):  
Peter K Edwards ◽  
Jay R Ebert ◽  
Chris Littlewood ◽  
Tim Ackland ◽  
Allan Wang
Keyword(s):  
Systematic Review ◽  
Physical Therapy ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Cochrane Library ◽  
Future Research ◽  
Routine Practice ◽  
Post Surgery ◽  
Reverse Total Shoulder

Background Physical therapy is considered routine practice following total shoulder arthroplasty. To date, current regimens are based on clinical opinion, with evidence-based recommendations. The aim of this systematic review was to evaluate the effectiveness of total shoulder arthroplasty physical therapy programmes with a view to inform current clinical practice, as well as to develop a platform upon which future research might be conducted. Methods An electronic search of MEDLINE, EMBASE, CINAHL and Cochrane Library to March 2018 was complemented by hand and citation-searching. Studies were selected in relation to pre-defined criteria. A narrative synthesis was undertaken. Results A total of 506 papers were identified in the electronic database search, with only one study showing moderate evidence of early physical therapy promoting a more rapid return of short-term improvement in function and pain. No studies evaluated the effectiveness of physical therapy programmes in reverse total shoulder arthroplasty procedures. Discussion Restoring range of motion and strength following total shoulder arthroplasty is considered important for patients to obtain a good outcome post-surgery and, when applied early, may offer more rapid recovery. Given the rising incidence of total shoulder arthroplasties, especially reverse total shoulder arthroplasty, there is an urgent need for high-quality, adequately powered randomised controlled trials to determine the effectiveness of rehabilitation programmes following these surgeries.

scholarly journals Acromial fracture after reverse total shoulder arthroplasty: a systematic review

2019 ◽  
Vol 12 (6) ◽  
pp. 375-389 ◽  
Author(s):  
Simon C Lau ◽  
Richard Large
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Stress Fracture ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Revision Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Cochrane Library ◽  
Acromial Fracture ◽  
Reverse Total Shoulder

Background The reverse total shoulder arthroplasty has become the most common method of arthroplasty of the shoulder. The complication of acromial or scapular stress fracture deserves consideration to describe incidence and determine whether prosthetic design or patient factors act as risk factors. Methods A systematic review of the literature was performed including the EMBASE, Medline and the Cochrane Library in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Results The search returned 565 articles. After exclusion, 25 papers remained. In total, 208 fractures were reported in the literature, with an overall incidence of 5% and stress fractures were more common than post-traumatic ones; 24 fractures underwent osteosynthesis and there were nine revision arthroplasty surgeries. Outcomes worsened after fracture – whether treated with surgery or not. In patients with scapular base fractures, there was an improvement in functional outcome scores after surgery. Heterogeneous reporting of the risk factors prior to fractures, treatment methods and outcomes made recommendations weak. Discussion Acromial stress fracture after reverse total shoulder arthroplasty occurs relatively commonly but is poorly reported in the literature. It is unclear whether immobilisation, fixation or revision arthroplasty is the best treatment, although fixation may offer a better outcome. In future, reports should aim for greater consistency to allow a better understanding of this condition.

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