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Method of the evaluation of improvement brought about by operation in affections of the hip (relative result)
| Preoperative grading | Postoperative grading | Difference | Improvement | |
|---|---|---|---|---|
| Pain | 3 | 5 | 2 × 2 = 4 | =9 |
| Mobility | 2 | 5 | 3 = 3 | |
| Ability to walk | 3 | 4 | 1 × 2 = 2 | |
| Very great improvement = 12 or more | ||||
| Great improvement = 7 to 11 | ||||
| Fair improvement = 3 to 7 | ||||
| Failure = less than 3 | ||||
