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A patient implanted with an evoke spinal cord stimulation (scs) system reported difficulty charging their evoke closed loop stimulator (cls).The patient reported a previous fall; the evoke scs system didn¿t cause or contribute to the patient¿s fall.X-ray imaging identified migration of two (2) leads and the cls was in an angled position.The physician elected to perform a revision procedure to replace the migrated leads and reposition the cls.During the revision procedure, the physician encountered scar tissue and could not regain posterior access to place the new leads.As a result, the revision procedure was aborted, the patient subsequently underwent explantation of the evoke scs system.
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The evoke scs system was not returned to saluda.X-ray images provided to saluda were reviewed and confirmed migration of the leads and the cls.The cls migration may have attributed to the reported difficulty charging the cls.The root cause of the lead and cls migration could not be definitively determined; however, the patient¿s previous fall may have contributed to the reported event.The evoke scs system surgical guide details proper cls anchoring including, "ensure that the cls lays parallel to the skin surface so that charging is not compromised.Secure the cls to the subcutaneous fascia with sutures through the holes in the header of the cls.¿ the evoke scs system surgical guide continues with detailing potential risks associated with surgery and spinal cord stimulation including, "lead migration or suboptimal placement, which may result in undesirable stimulation changes, and the patient may require surgery (including revision, explant, and replacement) as a result¿.Cls information:
brand name: evoke closed loop stimulator (cls) (us)
model: 102901
catalog: 3042
serial number: (b)(6)
udi: (b)(4)
expiration date: 21september2026.
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