Applications of the scoliosis width-to-length ratio for guiding selection of the surgical approaches of degenerative lumbar scoliosis

Table 3 Oswestry disability index (ODI)

	Group A	Group B	Group C	Group D
Preoperative	59.94 ± 7.62	65.89 ± 5.78	57.57 ± 4.40	65.54 ± 18.73
Follow-up	24.68 ± 14.80^a	55.54 ± 5.77^c	55.55 ± 16.66^b	23.38 ± 12.10^a
Comparisons	35.26 ± 7.18	10.35 ± 0.01	2.02 ± 12.26	42.16 ± 6.63
P values	<0.001	0.184	0.695	0.002

^a, vs preoperative, P < 0.05; ^b,vs group A, P < 0.05; ^c, vs group D, P < 0.05
Group A, patients whose W/L <0.36 and treated with short fusion
Group B, patients whoseW/L > 0.36 and treated with short fusion
Group C, patients whose W/L <0.36 and treated with long fusion
Group D, patients whoseW/L > 0.36 and treated with long fusion

ISSN: 1471-2474