The ratio between the screw distance and femoral neck width on lateral radiography is a reliable predictor of femoral head necrosis: a clinical review and corresponding numerical simulations
Hong Li, Shengyu Wan, Jian Zhang, Fan Wu, Xiaozhong Luo, Chao Wu, Xu Lin, Jingchi Li · 2024
Read The ratio between the screw distance and femoral neck width on lateral radiography is a reliable predictor of femoral head necrosis: a clinical review and corresponding numerical simulations by Hong Li, Shengyu Wan, Jian Zhang, Fan Wu, Xiaozhong Luo, Chao Wu, Xu Lin, Jingchi Li (2024) 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-11606134.txt.
Description
Hong Li and co-authors look for an X-ray sign that warns of bone death after a hip fracture fix, in a 2024 study. Surgeons often pin a broken femoral neck with three screws in a triangle. If the fix is loose, the ball of the joint can lose its blood supply and die. The team asked whether how widely the top screws spread, judged against the width of the neck, foretells that outcome.
The team reviewed scans of past patients and measured the spread ratio on side-view X-rays. They then compared patients who did and did not develop bone death and weighed other risk factors. Computer models of the bone and screws tested how spread changes stability. The ratio proved a reliable sign, the authors report, and it is easy to measure in clinic.
Catalog record
| CREATOR | Hong Li, Shengyu Wan, Jian Zhang, Fan Wu, Xiaozhong Luo, Chao Wu, Xu Lin, Jingchi Li |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 28 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |