Degree of coronal alignment correction can’t predict knee function in total knee replacement

BMC Surgery

Table 3 Basic data of three groups

Variable	A (n = 128)	B (n = 209)	C (n = 21)	P value
Gender (M/F)	25/103	39/170	3/18	^a0.849
Age (years)	65.89 ± 7.48	65.58 ± 8.35	63.19 ± 6.15	^b0.35
BMI (kg/m²)	27.35 ± 4.19	26.13 ± 3.66^*	27.41 ± 3.54	^bc0.01
Follow-up (year)	3.62 ± 2.72	3.49 ± 2.41	3.74 ± 1.96	^b0.8386
Preoperative HSS score	62.05 ± 12.81	62.78 ± 12.84	62.74 ± 12.19	^b0.876
Preoperative MFTA	− 11.19 ± 6.25	− 6.05 ± 6.59^*	− 3.58 ± 5.77^*	^bc0.001
Postoperative MFTA	− 4.66 ± 2.53	− 0.65 ± 1.51	3.06 ± 3.16	^b < 0.0001

Bold indicates statistically significant
The values are given as the mean and the standard deviation; MFTA mechanical femoral-tibial angle, HSS score Hospital for Special Surgery score
A Under-correction group, B Neutral alignment group, C Over-correction group
^achi-square test; ^bANOVA; ^cLSD-t test; ^*There was a statistically difference compared with the A group, however, no statistically difference in other two groups

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