hs/ke/rg.
Date : 00.00.00

Name of the Patient : Abc Xyzotilmn / F / 40 yrs.
Referred by : Dr. Abc Xyzaj / Dr. Abc Xyzavkar
Examination : M.R.I. of the Lumbo-sacral Spine.

CLINICAL PROFILE :

C/O backache radiating to the RLE since 20-25 days.
Alleged H/O fall prior to this.

EXAMINATION :

M.R.I of the lumbo-sacral spine was performed using the following parameters :

5 mm thick T1 Weighted and T2 Weighted sagittal images.

5 mm thick T1 Weighted and T2 Weighted axial images.

OBSERVATION :

There is Grade I spondylolisthesis of the L5 vertebra over the S1 vertebra with bilateral spondylolysis of the L5 vertebra, better appreciated on the plain X-rays.

There is a right paracentral disc extrusion indenting the traversing right S1 nerve root at the L5-S1 level. There is superior migration of the disc portion which is seen to lie in the right lateral recess of the L5 vertebra with indentation upon the right ventro-lateral aspect of the thecal sac. The L5-S1 intervertebral disc shows loss of water content.

A mild posterior disc bulge is noted at the L4-L5 level.

The lumbar vertebral bodies and the remaining intervertebral discs reveal normal signal intensity. The facet joints and the visualized pre and paravertebral soft tissues are unremarkable.

The conus medullaris terminates at the L1 level and the thecal sac terminates at the S1 level.
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The antero-posterior dimensions of the lumbar canal at the level of the intervertebral discs are as follows :

16.0 mm at L1-L2
19.0 mm at L2-L3
16.0 mm at L3-L4
17.0 mm at L4-L5
15.0 mm at L5-S1.

IMPRESSION :

The MRI features are suggestive of :

1. Grade I spondylolisthesis of the L5 vertebra over the S1 vertebra with bilateral spondylolysis of the L5 vertebra.

2. A right paracentral disc extrusion indenting the traversing right S1 nerve root at the L5-S1 level with a disc portion seen to lie in the right lateral recess of the L5 vertebra.