Equipment
A standard epidural pack may be used with a standard spinal needle. However, the standard length of a spinal needle (90mm) may be insufficiently long to reach the subarachnoid space through the Tuohy needle. An extra-long needle (e.g. 120mm) may be required.
Alternatively, several manufacturers produce packs containing both a spinal and an epidural needle which are slightly modified to fit together.
Read more about this topic: Combined Spinal And Epidural Anaesthesia
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