Intraoperative Computed Tomography versus Perdriolle and Scoliometer Evaluation of Spine Rotation in Adolescent Idiopathic Scoliosis

Table 1

Comparison of pre- and postcorrectional clinical and radiographic parameters evaluated with direct and indirect methods of measurement.

Parameter	Evaluation
	Before correction	After correction
Mean Cobb angle (°) thoracic curve	49,0° ± 15°	15° ± 5,7°
Mean Cobb angle (°) lumbar curve	38,0° ± 11,3°	7° ± 7°
Mean curve correction ratio (%) thoracic curve		69%
Mean curve correction ratio (%) lumbar curve		81%
Mean rib hump high (°) scoliometer	14° ± 4,5°	4° ± 2,9°
Mean rib hump correction ratio (%) scoliometer		71,5%
Mean rib hump high (°) ICT	23° ± 6,5°	16° ± 6,4°
Mean rib hump correction ratio (%) ICT		31%
Mean thoracic AVR (°) PERDRIOLLE	22° ± 7,6°	9° ± 6,9°
Mean lumbar AVR (°) PERDRIOLLE	27° ± 7,3°	10° ± 5,9°
Mean thoracic AVR (°) A&D	13,5° ± 4,2°
Mean lumbar AVR (°) A&D	16,3° ± 11°
Mean (AS – UIS) angle (°)	12,3° ± 8,4°	10,1° ± 7,8°
Mean (AS – LIS) angle (°)	8,7° ± 7,1°	8,5° ± 7,4°
Mean AVD (°) PERDRIOLLE		15°
Mean AVD (°) DVD ICT		1,2°