# Commentary: ED50 and ED95 of hypobaric ropivacaine during unilateral spinal anesthesia in older patients undergoing hip replacement surgery

**Authors:** Songfeng Li, Yalin Tian, Shanhuai Tian, Tingdan Tan, Shaojin Bu

PMC · DOI: 10.3389/fmed.2025.1724654 · Frontiers in Medicine · 2026-01-20

## Full-text entities

- **Chemicals:** ropivacaine (MESH:D000077212)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## References

5 references — full list in the complete paper: https://tomesphere.com/paper/PMC12864411/full.md

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Source: https://tomesphere.com/paper/PMC12864411