| ORIGINAL ARTICLE |
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| Year : 2012 | Volume
: 5
| Issue : 2 | Page : 243-245 |
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The classic sciatic nerve block approach ( are dorsal twitches better than plantar twitches?)
Ahmad Muhammad Taha, Ahmed Fouad Ibrahim Ahmed
Department of Anesthesiology, Ain Shams University, Cairo, Egypt
Correspondence Address:
Ahmad Muhammad Taha
Department of Anesthesiology, Abu Dhabi Knee and Sports Medicine Center (ADKSMC), Abu Dhabi, UAE
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.7123/01.ASJA.0000415062.28582.d4
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Background
Using the classic approach, the authors compared the success rate and time of onset of a sciatic nerve block after eliciting plantar twitches with those obtained after eliciting dorsal twitches.
Methods
Eighty patients, who underwent cruciate ligament reconstruction, underwent a classic sciatic nerve block procedure after eliciting plantar twitches of the foot or toes (group 1) or after eliciting dorsal twitches (group 2). The success rate of achieving a complete sciatic nerve block and its time of onset were recorded.
Results
In group 1, a complete sciatic nerve block was achieved more frequently, and the time of onset of sensory and motor blocks of the tibial fibers of the sciatic nerve was more rapid (86.8%; 10.8 ±5 and 12.5 ±6 min, respectively) compared with that in group 2 (57.5%; 20.6± 7 and 23±10.8 min, respectively; Po0.05).
Conclusion
Using the classic approach, eliciting of plantar twitches (tibial fiber stimulation) may result in more frequent achievement of a complete sciatic nerve block compared with eliciting of dorsal twitches (common peroneal fiber stimulation). |
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