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. 2022 Oct 23;34:42. doi: 10.1186/s43019-022-00170-2

Table 2.

Comparison of radiological outcomes

Parameters Non-PF OA group
(n = 83)
PF OA group
(n = 83)
p-Value
Mean mechanical axis (°)
 Preoperative 5.89 ± 2.85 6.05 ± 2.66 0.550
 Last follow-up −0.96 ± 2.08 −0.56 ± 3.15 0.393
 Correction angle 6.85 ± 3.11 6.62 ± 3.65 0.376
Mean weight-bearing line ratio
 Preoperative 0.23 ± 0.11 0.21 ± 0.12 0.379
 Last follow-up 0.53 ± 0.10 0.53 ± 0.13 0.849
Mean posterior tibial slope (°)
 Preoperative 9.83 ± 3.79 10.23 ± 3.39 0.307
 Last follow-up 10.89 ± 4.16 11.12 ± 3.40 0.742
 ΔPTSA 1.06 ± 3.46 0.88 ± 4.04 0.696

The p-values are of intergroup comparisons, with p < 0.05 indicating significance. PF OA patellofemoral osteoarthritis, correction angle difference in mechanical axis angle, ΔPTSA difference in posterior tibial slope angle