Radiographic comparison of humeral and glenoid lateralization and distalization between onlay and inlay reverse total shoulder arthroplasty designs in Japanese shoulders
Eriki Yanagi, Yoshihiro Hirakawa, Tomoya Manaka, Katsumasa Nakazawa, Rei Nishiura, Yoichi Ito, Hidetomi Terai · 2026
Read Radiographic comparison of humeral and glenoid lateralization and distalization between onlay and inlay reverse total shoulder arthroplasty designs in Japanese shoulders by Eriki Yanagi, Yoshihiro Hirakawa, Tomoya Manaka, Katsumasa Nakazawa, Rei Nishiura, Yoichi Ito, Hidetomi Terai (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13352366.txt.
Description
Eriki Yanagi and co-authors weighed in 2026 X-ray side shift and down shift in reverse shoulder surgery. The designs were onlay and inlay types in Japanese shoulders. Implant weigh-ups using standardised angles remain scarce, most of all in smaller Asian groups. Side shift and down shift angles help gauge implant placing and function after reverse shoulder replacement.
One hundred thirty-nine shoulders in 139 Japanese patients at a single centre were read. The Aequalis Ascend Flex onlay design was weighed against the Tornier Perform inlay design. Both yielded a 145-degree total neck-shaft angle through distinct stem and insert joins. Post-surgery side shift and down shift angles were measured and weighed. The weigh-up helps surgeons pick designs suited to Japanese anatomy and functional aims.
Catalog record
| CREATOR | Eriki Yanagi, Yoshihiro Hirakawa, Tomoya Manaka, Katsumasa Nakazawa, Rei Nishiura, Yoichi Ito, Hidetomi Terai |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 24 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |