PMC8769459_01
(A) X-ray imaging shows L5-S1 spondylolisthesis. (B) CT reveals L5 spondylolysis and vertebral canal stenosis caused by a bone spur. (C) Coronal MRI shows that the L5 nerve root is compressed.
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F1
X-ray imaging revealed mild spondylolisthesis at L5-S1 due to L5 spondylolysis, and CT revealed left L5-S1 spinal stenosis (Fig. 1A and 1B). MRI showed a deficit of the left L5 nerve root sleeve (Fig. 1C).
Photomicrographs show decompression of the left L5 nerve root (white dotted line). Black dotted line shows the lateral border of the dura.
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F2
Through surgery, the L5 nerve root was sufficiently decompressed (Fig. 2).
(A) Postoperative sagittal CT and (B) magnetic resonance images show an enlarged intervertebral canal.
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F3
Postoperative CT and MRI showed an enlarged intervertebral canal (Fig. 3).
(A) Photographs show the surgical field surrounding the peroneal nerve (arrow) and the site of entrapment (circle) by the peroneus longus muscle and fascia. (B) Photograph taken after decompression of the peroneal nerve (white arrow).
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F4
The superficial peroneal nerve was confirmed to be strongly compressed by the intermuscular septum, peroneus longus muscle and associated fascia, and aponeurosis of the soleus muscle (Fig. 4A). They were dissected and peeled off, and the strain on the nerve was relieved (Fig. 4B).