PMC8326084_01
Preoperative X-ray of lumbosacral spine (anteroposterior and lateral): X-ray suggestive of degenerative changes of lumbar spine and osseous fusion of the right SI joint with irregularity of cortex in the left SI joint. (b) Postoperative X-ray lumbosacral spine (anteroposterior and lateral): posterior decompression at L3-4 and fusion was achieved with the right side unilateral instrumented stabilization and interbody fusion with bone graft.
SNI-12-354-g001.jpg
PMC8326084_01_SNI-12-354-g001.jpg
F1
Plain lumbar X-rays demonstrated fusion between the L1-L3 and L3-L5 lumbar levels, with osseous fusion of the right sacroiliac joint accompanied by irregularity of the left S1 joint cortex due to advanced seronegative spondyloarthropathy [Figures 1-4].
CT scan sagittal view: L3-4 unfused segment with fused dorsolumbar segments showing advanced seronegative changes.
SNI-12-354-g002.jpg
PMC8326084_01_SNI-12-354-g002.jpg
F2
Plain lumbar X-rays demonstrated fusion between the L1-L3 and L3-L5 lumbar levels, with osseous fusion of the right sacroiliac joint accompanied by irregularity of the left S1 joint cortex due to advanced seronegative spondyloarthropathy [Figures 1-4].
MRI scan of lumbosacral spine sagittal view: lumbar canal stenosis is seen at L3-4 level due to diffuse disc bulge, facetal arthropathy, and osseous malformation of L3 and L4 vertebral bodies.
SNI-12-354-g003.jpg
PMC8326084_01_SNI-12-354-g003.jpg
F3
Plain lumbar X-rays demonstrated fusion between the L1-L3 and L3-L5 lumbar levels, with osseous fusion of the right sacroiliac joint accompanied by irregularity of the left S1 joint cortex due to advanced seronegative spondyloarthropathy [Figures 1-4].
MRI scan of lumbosacral spine axial view: bilateral L3-4 foraminal narrowing and lumbar canal stenosis are seen causing bilateral L3 nerve root compression.
SNI-12-354-g004.jpg
PMC8326084_01_SNI-12-354-g004.jpg
F4
Plain lumbar X-rays demonstrated fusion between the L1-L3 and L3-L5 lumbar levels, with osseous fusion of the right sacroiliac joint accompanied by irregularity of the left S1 joint cortex due to advanced seronegative spondyloarthropathy [Figures 1-4].