JSES Family of Journals

05/24/2025

05/24/2025

https://chatgpt.com/s/m_683223fea5648191a792b9e5b37bf676

05/24/2025

This study investigates factors influencing glenoid size and glenosphere selection in rTSA for patients with cuff arthropathy or irreparable cuff tears. Utilizing CT scans, researchers analyzed patient age, gender, height, weight, and glenoid dimensions, aiming to identify correlations. While gender is significantly associated with glenoid size, patient height has a stronger link to glenoid width. There is a persistent gender bias in glenosphere size selection, with male patients receiving larger implants even when having similarly sized glenoids to females. This suggests a need to consider patient height more prominently in optimizing glenosphere selection for improved rTSA outcomes.

What patient factors are you considering when choosing a glenosphere size?

05/23/2025

This retrospective study examined short-term clinical and radiological outcomes of rTSA used as a revision procedure for failed shoulder arthroplasties. The study compared outcomes in patients treated with a Grammont-type design (non-lateralized), those with metallic glenoid lateralization (latrTSA), and those with bipolar lateralization (bi-latrTSA), including patients with aseptic and septic revisions. Results indicated that rTSA is a viable revision option with good overall functional improvements, but metallic augmentation did not significantly improve clinical results compared to non-lateralized implants in this revision setting. However, the bi-latrTSA did not have scapular notching.

With the rise in shoulder arthroplasty procedures, there has also been a substantial increase in revision numbers. How are you optimizing outcomes in this challenging patient population?

05/22/2025

This study looked at cases of failed TSA, RSA, and hemiarthroplasty, across three institutions to determine the frequency of incorrectly positioned implant components. Quantitative analysis showed that malpositioning was frequent for both glenoid and humeral implants in the cases reviewed, with particularly high rates for glenoid components in RSA and significant humeral component misalignment across all three procedure types.

What technologies are you leveraging to ensure accurate glenoid placement when performing primary shoulder arthroplasty?

The purpose of this study was to assess the incidence of glenoid and humeral component malposition in failed primary shoulder arthroplasty requiring revision. We hypothesized that glenoid and humeral component malposition would be a prevalent feature in cases requiring revision arthroplasty for prim...

05/22/2025

This study used a biorobotic shoulder simulator and cadaveric shoulders to investigate the isolated effects of humeral distalization (0, +5, +10, +15 mm along the humeral stem axis) without lateralization. Greater humeral distalization led to increases in muscle and joint reaction forces, and increased passive elevation. Surgical strategies to generate deltoid muscle tension without humeral distalization may promote better active range of motion and more durable long-term outcomes.

Do these findings influence your implant selection or implant positioning strategies to achieve appropriate deltoid tension in RSA?

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05/21/2025

This study compared outcomes of rTSA using constrained versus standard liners in a matched retrospective analysis of 836 patients with at least one year of follow-up. There was no significant differences in PROMs, and ROM between the two liner types. However, the constrained liner group exhibited notably higher rates of adverse events, specifically scapular notching. The authors conclude that constrained liners in primary rTSA do not demonstrate a clear benefit and may carry increased risks, suggesting further long-term studies are necessary to understand their true utility.

How often are you using constrained liners in a primary setting?

The purpose of this study was to compare the outcomes of primary reverse total shoulder arthroplasty (rTSA) using constrained liners (in a 145° onlay implant, Equinoxe [Exactech]) with primary rTSA using standard liners with a minimum 1-year follow-up.