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Results of the HHS
| Hydroxyapatite-coated stem | Non-hydroxyapatite-coated stem | |
|---|---|---|
| Preoperative HHS | 44 (23–55) | 43 (20–53) |
| Postoperative HHS | 90 (32–100) | 90 (38–100) |
| Excellent | 26 (65%) | 16 (73%) |
| Good | 10 (25%) | 2 (9%) |
| Fair | 3 (7%) | 2 (9%) |
| Poor | 1 (3%) | 2 (9%) |
