Two recent case reports shed light on rare complications associated with spinal cord stimulators, devices commonly used to alleviate chronic intractable pain. These cases highlight the potential for unexpected neurological symptoms and device malfunctions that necessitate medical intervention and device removal.
Case Studies Reveal Complex Complications
The first case involves a 67-year-old woman who received a Medtronic Restore spinal cord stimulator in 2009 to treat complex regional pain syndrome. After a battery replacement in 2021, she began experiencing dizziness, headaches, and balance issues in December 2023, leading to the removal of the device despite its continued functionality. Notably, a portion of the electrode remained post-explantation.
In the second case, a 78-year-old woman implanted with a Medtronic RestoreUltra system in 2011 faced complications after a motor vehicle accident in 2021. She reported electric shock-like sensations when the stimulator was active. Despite attempts to resolve the issue through system interrogation in 2022, the persistent discomfort and lack of therapeutic benefit prompted her to have the device removed in May 2025, revealing that the distal electrode was still lodged in her cervical spine.
Implications for Treatment and Patient Care
– Spinal cord stimulator lead fractures can present with atypical neurological symptoms.
– Persistent electrical sensations may indicate lead migration or device malfunction.
– Device removal may alleviate unexplained neurological disturbances even if parts of the device remain.
– Routine post-implantation imaging could be crucial in identifying unseen complications.
The detailed examination of these cases underscores the importance of vigilant monitoring of patients with spinal cord stimulators. Medical professionals should consider device-related causes when patients present with new neurological symptoms. Additionally, advancements in device technology and imaging techniques could enhance the detection and management of such complications, ensuring better patient outcomes and device efficacy.
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