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Original ArticleOpen Access
A Comparison Study between Newly-Designed Pencil-Point and Cutting Needles in Spinal Anesthesia
Saenghirunvattana R 
,
Tantivitayatan K ,
Chumnanvech W ,
Tangsukkasemsun S ,
Siritongtaworn P
,
Tantivitayatan K ,
Chumnanvech W ,
Tangsukkasemsun S ,
Siritongtaworn P Objectives: The goal of this single blinded randomized study was to compare the use of routine cutting-tip
spinal needle and newly-designed pencil-point PajunkÆ in terms of success rate, complications and satisfactions
in priests undergoing spinal anesthesia for orthopedic, general and urological surgery at Priest Hospital,
Thailand.
Material and Method: After Institutional Review Board approval and patients’ signed consent, from August
2006 to October 2007, 91 priests were randomly assigned to have 27-gauge Quincke (control group, C) or 25-
gauge PajunkÆ (study group, S) spinal needles used in their spinal anesthesia. The number of attempts to
successful cerebrospinal fluid return and the success rate of the spinal blockade were documented.
Postoperatively, an investigator blinded to the study interviewed patients daily.
Results: The first-time needling success rate for Quincke was 79% but for PajunkÆ only 46%, lower than
reported. The incidence of minor complications was small, even there were 2 postoperative dead cases not
related to anesthesia. Over 80% of both groups still preferred the same technique and surgeon satisfaction
was good to excellent.
Conclusions: The newly-designed, pencil-point spinal needle was another example on the development of
more refined towards quality anesthesia. To be cost-effective, it should be selected for patients at risk of CSF
leakage-related complications.
Keywords: Anesthesia, Postdural puncture headache, (PDPH), Postdural puncture backache, ( PDPB)
spinal needle and newly-designed pencil-point PajunkÆ in terms of success rate, complications and satisfactions
in priests undergoing spinal anesthesia for orthopedic, general and urological surgery at Priest Hospital,
Thailand.
Material and Method: After Institutional Review Board approval and patients’ signed consent, from August
2006 to October 2007, 91 priests were randomly assigned to have 27-gauge Quincke (control group, C) or 25-
gauge PajunkÆ (study group, S) spinal needles used in their spinal anesthesia. The number of attempts to
successful cerebrospinal fluid return and the success rate of the spinal blockade were documented.
Postoperatively, an investigator blinded to the study interviewed patients daily.
Results: The first-time needling success rate for Quincke was 79% but for PajunkÆ only 46%, lower than
reported. The incidence of minor complications was small, even there were 2 postoperative dead cases not
related to anesthesia. Over 80% of both groups still preferred the same technique and surgeon satisfaction
was good to excellent.
Conclusions: The newly-designed, pencil-point spinal needle was another example on the development of
more refined towards quality anesthesia. To be cost-effective, it should be selected for patients at risk of CSF
leakage-related complications.
Keywords: Anesthesia, Postdural puncture headache, (PDPH), Postdural puncture backache, ( PDPB)
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