TABLE 2.

Radiographic Measurements for All SMA Patients

	Timepoint			P
Radiographic Measurement	Preoperative	Initial Follow-up	Final Follow-up	Preoperative vs. Initial Follow-up	Preoperative vs. Final Follow-up
MCCA (deg.)	69.0±20.9	34.6±15.8	42.2±23.0	<0.001	<0.001
Pelvic obliquity (deg.)	12.1±9.3	8.0±6.6	10.7±8.2	0.004	0.209
Concave-side hip FHCP (%)	45.2±27.7	49.9±28.2	43.2±33.5	0.100	0.605
Convex-side hip FHCP (%)	80.9±16.9	80.8±15.2	81.2±21.0	0.961	0.872

Bolded values denote statistical significance to P<0.05.

FHCP indicates femoral head coverage percentage; MCCA, major curve of Cobb angle; SMA, spinal muscular atrophy.