Table 3.

Radiological findings assessed with CT: changes in the lumbosacral area and the SI-joints, and bony structural changes in L5 and sacrum; n = 28

	n
L5-S1
Ankylosis, facet joints	9
bilateral	4
with OA in contralateral joint	3
with normal contralateral joint	2
L5-TP fusion to sacrum	3
L5-S1 disc space narrowing	14
OA, facet joints	18
SI-joint(s)
Ankylosis	8
unilateral	6
bilateral	2
OA	12
bilateral	2
with ankylosis in contralateral joint	2
with normal contralateral joint	8
Heterotopic ossification	13
Ilio-lumbar ligaments (ILL)	4
Pelvic floor (PF)	5
Both in PF and ILL	4
Sacral canal narrowing	8
L5 vertebral canal narrowing a	1
Neural root foramen narrowing	26
L5	17
S1	20
S2	15
S3	9
S4	9
Post-foraminal bony encroachment, L5 nerve	22
Post-foraminal bony encroachment, S1 nerve	16

^asequelae after unstable L5 fracture.

SI: sacro-iliac; OA: osteoarthritis;

TP: transverse process.