Table 3.

Atlantoaxial angular measurements (summary)

Angular parameters (°)	All patients	p-values
Solow/Tallgren sum (modified)
OPT-FH	0.75 ± 7.85	0.4535
CVT-FH	-0.67 ± 7.99	0.5102
NL-FH	-0.12 ± 2.91	0.7433
NSL-FH	0.43 ± 2.73	0.2136
Clivus-dens angle	0.23 ± 7.92	0.8207
McGregor-CVT	0.11 ± 7.56	0.9075
McGregor-CVT	-6.67 ± 43.34	0.2267
McGregor-AT	0.33 ± 5.92	0.7227
AT-CVT	-0.41 ± 5.45	0.6328
(Ba-C)-McRae	0.67 ± 61.96	0.9324
(Ba-C)-AT	0.51 ± 4.59	0.4747
McRae-AT	16.05 ± 74.93	0.1726
Craniocervical angle (NSL-OPT)	-0.53 ± 8.18	0.6054
Atlas inclination (AT-FH)	-0.09 ± 4.27	0.8987

Data are given as mean differences (± SD) between posttreatment and baseline values.