Table 2.
Clinical and radiographic outcomes
| Parameter | Mean preoperative scores (SD) N = 11 | Mean postoperative scores (SD) N = 12 | Mean difference (95 % CI) N = 11 | p value N = 11 |
|---|---|---|---|---|
| HKA (°) | 9.3 (5.7) valgusb | 1.1 (2.3) varusa | 10.4 (6.4–14.4) | p = 0.000 |
| mLDFA (°) | 85.0 (6.2)b | 90.0 (2.0)a | 4.0 (0.1–7.9) | n.s. |
| MPTA (°) | 88.0 (7.7)b | 89.0 (2.8)a | 0.0 (−4.4 to 4.4) | n.s. |
| WOMAC (0–96) | 57 (13) | 81 (16) | −26 (−33 to −19) | p = 0.000 |
| VAS-pm (0–100) | 60 (19) | 33 (21) | 26 (11–41) | p = 0.003 |
| VAS-pf (0–100) | 71 (21) | 27 (22) | 26 (61) | p = 0.000 |
| KOS (0–100 %) | 56 (15) | 75 (15) | 20 (35–4.2) | p = 0.018 |
| OKS (12–60) | 33 (8) | 21 (8) | 12 (6.8–17) | p = 0.000 |
SD standard deviation, CI confidence interval, N number, OA osteoarthritis classification Kellgren and Lawrence, HKA hip knee ankle angle, mLDFA mechanical lateral distal femoral angle, MPTA medial proximal tibial angle, WOMAC Dutch Western Ontario and McMaster Universities osteoarthritis index, VAS-pm Visual Analogue Scale for maximum pain, VAS-pf Visual Analogue Scale for how frequent the patient experienced pain, KOS Knee Outcome Survey Activities of Daily Living Scale, OKS Oxford Knee Score
a N = 10
b N = 12