Table 2.
Postoperative Characteristics for Total Sample and UKA, TKA, and PFA Groupsa
| Total | UKA | TKA | PFA | P Value | |
|---|---|---|---|---|---|
| Return to level of impact | |||||
| Lower | 42 (36.5) | 11 (23.8) | 21 (45.7) | 10 (43.5) | .229 |
| Similar | 54 (46.9) | 27 (58.7) | 18 (39.1) | 9 (39.1) | |
| Higher | 19 (16.5) | 8 (17.4) | 7 (15.2) | 4 (17.4) | |
| Return to level of performance | |||||
| Lower | 29 (25.2) | 9 (19.6) | 13 (28.3) | 7 (30.4) | .008 |
| Similar | 30 (26.1) | 12 (26.1) | 14 (30.4) | 4 (17.3) | |
| Higher | 56 (48.7) | 25 (54.4) | 19 (41.3) | 12 (52.2) | |
| No. of impact sports | |||||
| Low impact | 2.61 ± 1.8 | 2.82 ± 2.0 | 2.61 ± 1.6 | 1.91 ± 1.6 | .14 |
| Medium impact | 0.99 ± 0.9 | 1.07 ± 1.0 | 1.00 ± 0.9 | 0.48 ± 0.7 | .04 |
| High impact | 0.36 ± 0.7 | 0.48 ± 0.7 | 0.33 ± 0.7 | 0.17 ± 0.5 | .18 |
| Satisfaction | |||||
| (Very) dissatisfied/neutral | 29 (25.2) | 6 (13.1) | 15 (32.6) | 8 (35.8) | .048 |
| (Very) satisfied | 86 (74.8) | 40 (86.9) | 31 (67.4) | 15 (65.2) | |
| UCLA | |||||
| Continuous score | 6.71 ± 2.0 | 6.89 ± 2.0 | 6.62 ± 1.9 | 6.52 ± 2.4 | .736 |
| Score unknown | 2 (1.7) | 1 (2.2) | 1 (2.2) | 0 (0) | |
| Score ≥7 | 68 (59.1) | 25 (54.3) | 28 (60.8) | 15 (65.2) | .696 |
| Score <7 | 45 (39.1) | 20 (43.4) | 17 (37.0) | 8 (34.8) | |
| HAAS total | 10.94 ± 3.6 | 12.36 ± 3.8 | 9.54 ± 3.4 | 11.00 ± 3.7 | .001 |
| NRS | 15.15 ± 15.42 | 13.76 ± 15.3 | 13.79 ± 11.2 | 20.17 ± 21.1 | .144 |
aValues are expressed as n (%) or mean ± SD. HAAS, High Activity Arthroplasty Score; NRS, Numeric Rating Scale for pain; PFA, patellofemoral arthroplasty; TKA, total knee arthroplasty; UCLA, University of California Los Angeles activity score; UKA, unicompartmental knee arthroplasty.