Number of patients with clinical improvement at follow-up
| Patients | Group 1 | Group 2 |
|---|---|---|
| With pain improvement | 19 of 20 (95) | 21 of 22 (95) |
| Without pain | 14 of 20 (70) | 14 of 22 (64) |
| With preoperative impaired mobility | 11 of 20 (55) | 12 of 22 (55) |
| With mobility improvement | 11 of 11 (100) | 12 of 12 (100) |
Note.—Follow-up data were available in 20 (83%) of 24 patients in group 1 and in 22 (92%) of 24 patients in group 2. Data in parentheses are percentages.