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Table 2. Preoperative and postoperative radiographic and clinical data. Presented as mean (confidence intervals)

From: Should sagittal osteotomy line be parallel to tibial posterior slope in high tibial osteotomy?

p-value Preoperation 2 years after surgery
aFTA (°)
< 0.001a
181.6 (180.8 to 182.5) 168.5 (167.8 to 169.2)
WBL ratio (%)
< 0.001b
14.7 (11.3 to 18.2) 69.8 (66.6 to 73.0)
TPS (°)
0.002a
11.9 (11.0 to 12.7) 12.6 (11.7 to 13.5)
aLDFA (°)
0.289a
81.3 (80.7 to 81.9) 81.1 (80.6 to 81.6)
JLCA (°)
< 0.001a
4.6 (4.2 to 5.0) 3.6 (3.2 to 4.0)
aMPTA (°)
< 0.001b
85.3 (84.3 to 86.2) 95.1 (94.0 to 96.3)
Arc of motion (°)
0.037b
125 (122 to 128) 128 (125 to 131)
AKS knee score (point)
< 0.001b
51 (49 to 53) 86 (85 to 88)
AKS function score (point)
< 0.001b
72 (69 to 75) 97 (96 to 99)
Lysholm score (point)
< 0.001b
47 (44 to 50) 89 (87 to 91)
  1. aFTA anatomical femorotibial angle, WBL weightbearing line, TPS tibial posterior slope, aLDFA anatomical lateral distal femoral agle, JLCA joint line convergence angle, aMPTA anatomical medial proximal tibial angle, AKS American Knee Society
  2. at-test
  3. bWilcoxon test