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| Methods | Prospective, randomized study |
| Participants | A total of 106 patients, aged below 40 years, scheduled for surgery in the lower part of the body were chosen for this study |
| Interventions | Patients were allocated randomly to have spinal analgesia with either a Sprotte 24 G or an Atraucan 26 G spinal needle |
| Outcomes | The primary outcome was: incidence of PDPH. Secondary outcomes were: ease of needle insertion and number of puncture attempts |
| Notes | — |
