| to make decisions | 7 | purpose |
| to remove the hip implant | 4 | purpose |
| for placement | 3 | purpose |
| implant → require → surgery | 73 |
| implant → involve → surgery | 16 |
| implant → require → surgical procedure | 10 |
| implant → be → surgical procedure | 5 |
| implant → involve → surgical procedure | 5 |
| implant → require → surgeon | 3 |
| negative | neutral | positive |
| 0.303 | 0.528 | 0.169 |
| Raw frequency | 112 |
| Normalized frequency | 0.493 |
| Modifier score | 0.400 |
| Perplexity | 479.129 |