Surgical sequence in anterior column realignment with posterior osteotomy is important for degree of adult spinal deformity correction: advantages and indications for posterior to anterior sequence

Table 1 Patient demographics data of the P-A and A-P groups

Variable	P-A group	A-P group	p-value
Number of patients	178	82
Age, years	73.6 ± 5.6	72.4 ± 7.2	0.168
Sex, (F/M)	150/28	68/14	0.785
BMI, kg/m²	25.6 ± 5.15	26.7 ± 5.4	0.114
BMD, T-score	-1.9 ± 1.1	-1.9 ± 1.5	0.680
Osteoporosis/osteopenia, n (%)	82 (46.1)	44 (53.7)	0.255
Revision surgery, n (%)	65 (36.5)	28 (34.1)	0.711
Dominant symptoms, n (%)
Back pain	142 (79.8)	70 (85.4)	0.280
Leg pain	129 (72.5)	63 (76.8)	0.458
Claudication	97 (54.5)	43 (52.4)	0.757
Numbness/tingling	68 (38.2)	30 (36.6)	0.803
Weakness	29 (16.3)	14 (17.1)	0.875
CCI	2.4 ± 1.2	2.6 ± 1.4	0.082
Preoperative diagnosis, n (%)			0.784
Adult idiopathic scoliosis	43 (24.2)	21 (25.6)
Degenerative scoliosis	37 (20.8)	14 (17.1)
Degenerative sagittal imbalance	76 (42.7)	39 (47.6)
Postoperative state of lumbar spine	22 (12.4)	8 (9.8)
ASA class, n (%)			0.908
I	29 (16.3)	14 (17.1)
II	129 (72.5)	58 (70.7)
III	20 (11.2)	10 (12.2)

Bold text indicates statistical significance (p < 0.05)
BMI body mass index, BMD bone mineral density, CCI Charlson comorbidity index, ASA American Society of Anesthesiologists

ISSN: 1471-2474