PMC9926031_01
Preoperative anteroposterior and lateral X-rays before the second surgery
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F1
Six months after the first surgery and failure of conservative treatment, including physiotherapy and caudal injection of steroids, the patient underwent second surgery with the diagnosis of lumbar spinal stenosis [Figure 1].
Postoperative anteroposterior and lateral radiographs after the second surgery, implants removal, and decompression
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F2
At the time of surgery, no instrumentation was implanted [Figure 2].
Left: Flexion and extension lateral radiographs demonstrating instability of L3 and L4, Right: Sagittal MRI before the third surgery
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F3
The patient did not improve in the course of 1 year after the second surgery, and at this time, flexion and extension X-rays showed instability between L2 and L3 vertebrae [Figure 3].
Postoperative anteroposterior and lateral radiographs after the third surgery
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F4
T11 to S, and decompression was done [Figure 4].