Table 5.

Lower limb radiographic parameters in the degenerative scoliosis and control groups

Characteristics	DSG	CG	P-value
ΔHKAA	1.8±2.8°	-1.37±0.7°	0.746
ΔMPFA	1.6±1.6°	-0.1±0.4°	0.901
ΔLDFA	0.1±0.3°	0.5±0.3°	0.162
ΔMPTA	0.1±0.4°	-0.03±0.4°	0.939
ΔLDTA	-0.4±0.4°	-0.3±0.3°	0.425
ΔTotal skeletal lower limb length	-3.0±1.1 mm	0.2±0.9 mm	0.017*
ΔFemoral length	-1.7±0.8 mm	0.8±0.5 mm	0.014*
ΔTibal length	-0.7±0.5 mm	-0.2±0.6 mm	0.325

HKAA: hip-knee-ankle angle; MPFA: medial proximal femoral angle; LDFA: mechanic lateral distal femoral angle; MPTA: medial proximal tibia angle; LDTA: lateral distal tibia angle; DSG: the degenerative scoliosis group; CG: the control group. Degenerative scoliosis group: using the main curve side subtracted from the opposite side. Control group: using the difference between the left lower limb subtracted from the right lower limb.

^*Correlation is significant at the 0.05 level;

^**Correlation is significant at the 0.01 level.