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Updated: Jun 13, 2026
Full-Endoscopic Transforaminal Approach for Lumbar Discectomy
Published on: September 8, 2023
Conversion paralysis after surgery for lumbar disc herniation
Ming-Kai Hsieh1, Chen-Nen Chang, Mei-Chun Hsiao
1Department of Orthopaedic Surgery, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan.
Objective:
New neurologic deficit after spinal surgery is a rare complication that must be promptly diagnosed and treated to reduce the risk of permanent neurologic disability.
Summary Of Background Data:
A 37-year-old woman underwent left laminotomy and L5-S1 diskectomy for the treatment of L5-S1 disc herniation. She was found to be normal after recovery from anesthesia but loss of muscle power in the left lower limb after 1 h.
Methods:
Surgical exploration was performed; no obvious hemorrhage or compression because of hematoma was observed. After the exploration, the muscle power recovered but deteriorated after 10 h.
Results:
Re-exploration did not yield any specific findings. In view of the normal electrophysiological and anatomic findings, a psychiatric evaluation confirmed the diagnosis of conversion paralysis with major depression disorder.
Conclusion:
Normal somatosensory-evoked potentials or motor-evoked potentials in a patient denying sensation of stimuli offer objective evidence of the psychogenic nature of the para/tetraplegia. This report describes a case in which psychopathology interfered with the outcome of a frequently used procedure for a well-defined, chronic, painful condition.
