Table 4.
Postoperative results
| Variable | UKA group | TKA group | p Value |
|---|---|---|---|
| Followup (months) | 30 (±12.1; 1–52) | 32 (±10.4; 2–52) | 0.2960 |
| Manipulations | 0 (0%) | 7 (6%) | 0.0072 |
| Revisions | 7 (6%) | 3 (3%) | 0.1958 |
| Range of motion at most recent (degrees) | 120 (±7.8; 85–135) | 115 (±11.4; 70–140) | 0.0001 |
| Range of motion improvement from preoperative (degrees) | 2.8 (±10.8; –35–25) | 2.4 (±14.8; −40–35) | 0.8089 |
| KS pain score at most recent (0 to 50) | 44 (±10.4; 10–50) | 46 (±11.3; 0–50) | 0.8320 |
| KS pain score improvement from preoperative | 32 (±12.6; −10–50) | 34 (±14.1; −20–50) | 0.2316 |
| KS clinical score at most recent (0 to 100) | 92 (±12.0; 48–100) | 90 (±13.9; 40–100) | 0.2824 |
| KS clinical score improvement from preoperative | 35 (±13.8; −10–55) | 38 (±13.9; 40–100) | 0.1074 |
| KS functional score at most recent (−20 to 100) | 80 (±22.2; 20–100) | 76 (±22.2; 20–100) | 0.2157 |
| KS functional score improvement from preoperative | 26 (±23.3; −50–70) | 27 (±26.3; −70–110) | 0.7475 |
| Lower extremity activity scale (0 to 18) | 11.5 (±2.8; 6–18) | 9.5 (±2.4; 6–14) | 0.0024 |
| Oxford score (0 to 48) | 5.4 (±5.6; 0–24) | 4.3 (±5.8; 0–30) | 0.2667 |
| Return to work (weeks) | 8.2 (±6.2; 1–32) | 8.0 (±5.6; 0–32) | 0.8172 |
| Return to sports (weeks) | 11.3 (±11.3; 0–52) | 10.9 (±10.3; 0–52) | 0.8180 |
UKA = unicompartmental knee arthroplasty; TKA = total knee arthroplasty; KS = Knee Society.
Bolded values are p = 0.05 or lower.