Product complaint # (b)(4).Even though the was no report of consequences to the patient, subsidence has resulted in the need for revision surgery.As such, this report is being filed as a serious injury a complaint investigation will be performed.The complaint product is not available for the investigation.A supplemental report is not anticipated unless the results of the complaint investigation identify a corrective action or additional relevant information.Should the product become available, a physical evaluation will be conducted and a supplemental report filed with the results.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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A literature article was reviewed: "risk factors of instrumentation failure after multilevel total en bloc spondylectomy katsuhito yoshioka1), hideki murakami1), satoru demura1), satoshi kato1), noriaki yokogawa1), norio kawahara2), katsuro tomita1) and hiroyuki tsuchiya1 received: october 30, 2016, accepted: december 10, 2016 n=30 cage subsidence.
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