Table 1. Search strategy for Medline.
| Search term | Number of studies |
| Quadratus Lumborum block | 367 |
| Hip arthroplasty | 48876 |
| Hip replacement | 44461 |
| #2 or #3 | 57092 |
| Pain | 913529 |
| #1 AND #5 AND #6 | 36 |
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