Double-level knee valgization osteotomy has high survivorship and a low complication rate in a single-center series of 58 cases with a mean clinical follow-up of 10 years

Table 3 Preoperative and postoperative lower limb radiographic measurements

	Preoperative values	Postoperative values	Correction values*	p-Values
mTFA (degrees)	−12.7 ± 3.9 [−13.4, −11.9]	−0.4 ± 3.4 [−1.1, 0.2]	12.3 ± 4.0 [11.6, 13.1]	p < 0.001
mLPFA (degrees)	91.9 ± 8.3 [90.3, 93.5]	90.7 ± 7.9 [89.1, 92.2]	−1.2 ± 13.7 [−5.5, −0.2]	p = 0.1
mLDFA (degrees)	91.6 ± 3.4 [90.9, 92.2]	86.7 ± 2.5 [86.2, 87.2]	−4.9 ± 12.7 [−9.0, −4.1]	p < 0.001
MPTA (degrees)	84.3 ± 3.2 [83.7, 84.9]	90 ± 2.5 [89.6, 90.5]	5.7 ± 13.0 [1.5, 6.5]	p < 0.001
LDTA (degrees)	87.7 ± 4.7 [86.8, 88.5]	87.2 ± 4.4 [86.3, 88]	−0.5 ± 12.4 [−4.4, 0.4]	p = 0.6
JLCA (degrees)	4.8 ± 2.5 [4.3, 5.3]	4.2 ± 2.0 [3.8, 4.5]	−0.6 ± 1.9 [−1.1, −0.4]	p = 0.03
LL (mm)	817.6 ± 70.8 [804.2, 831.0]	818.4 ± 68.6 [805.1, 831.7]	−0.8 ± 2 [−1, 1.5]	p = 0.8
Mikulicz (%)	−5 ± 13.4 [−7.5, −2.4]	47.7 ± 14.7 [44.8, 50.5]	52.7 ± 19.1 [48.1, 55.5]	p < 0.001

^*The correction values are reported as the delta = postoperative − preoperative. All values are reported as mean ± standard deviation [95% confidence intervals]
mTFA mechanical tibiofemoral angle, mLPFA mechanical lateral proximal femoral angle, mLDFA mechanical lateral distal femoral angle, MPTA medial proximal tibial angle, LDTA lateral distal tibial angle, JLCA joint line convergence angle, LL lower limb length, Mikulicz Mikulicz line percentage
Negative mTFA is varus and positive mTFA is valgus

ISSN: 2234-2451