Paraplegia
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The loss of benefit from intrathecal baclofen, with increased spasticity and a discrepancy between the residual and the calculated volume content (underinfusion), made us suspect dysfunction of the intrathecal baclofen infusion in a paraplegic patient. Although all possible usual checking methods were used, no failure in the drug administration device (DAD) could be found. ⋯ Surgeons and physicians should be aware that checking methods of DAD cannot exclude failure of the system. Their errors and limitations are discussed.