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Benefit of the minimal invasive ultrasound-guided single shot femoro-popliteal block for ankle surgery in comparison with spinal anesthesia

Vorteil des minimal invasiven Ultraschall-gezielten femoro-poplitealen "single-shot" Blocks im Vergleich zur Spinalanästhesie bei Knöcheloperationen

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Zusammenfassung

HINTERGRUND: Bei der Chirurgie des Fußes und des Knöchels hat die Ultraschall (US) – gezielte regionale Anästhesie an Beliebtheit gewonnen. Ziel unserer Studie war es, die Suffizienz einer minimal invasiven US-gezielten regionalen Anästhesie, sowie die Dauer der Analgesie in der postoperativen Periode im Vergleich zur Anästhesie und postoperativen Analgesie nach Spinal Anästhesie bei Operationen am Knöchel zu untersuchen. METHODEN: Es wurden 40 erwachsene Patienten mit bimalleolarer Fraktur, bei denen eine Operation vorgesehen war, prospektiv untersucht. Nach Randomisierung wurden sie in 2 Gruppen geteilt. Patienten der 1. Gruppe erhielten eine US-gezielte Blockierung femoro-popliteal (US-FPB), die der 2.Gruppe wurden mit Spinalanästhesie (SA) analgesiert. In beiden Gruppen wurde 0,5 %iges Bupivacain als Lokalanästhetikum verwendet. ERGEBNISSE: 18 Patienten der 1. und 19 Patienten der 2. Gruppe beendeten die Studie. Der Grad der Anästhesie war in beiden Gruppen ausreichend und unterschied sich nicht signifikant. Die Dauer der postoperativen Analgesie war bei den mit US FPB behandelten Patienten länger als bei den Patienten unter SA (12 ± 3 vs. 3 ± 1 h) (p < 0.001). Auf der anderen Seite war der Beginn des kompletten senso-motorischen Blocks in der Gruppe mit SA signifikant früher als bei den Patienten mit US-FPB (5 ± 1 vs. 8 ± 3 min) (p < 0,001). SCHLUSSFOLGERUNGEN: Knöchelbrüche können mit US-FPB ausreichend anästhesiert werden. Im Vergleich zu den Patienten mit SA war die Dauer der postoperativen Analgesie bei den US-FPB Patienten signifikant länger, bei allerdings signifikant späterem Einsetzen der Anästhesie.

Summary

BACKGROUND: Ultrasound-guided regional anesthesia has gained popularity for ankle and foot surgery. The aim of our study was to investigate the sufficiency of anesthesia for ankle surgery as well as duration of analgesia in postoperative period, using minimal invasive ultrasound-guided regional anesthesia, and to compare it with anesthesia and postoperative analgesia following spinal anesthesia. METHODS: This prospective study included 40 adult trauma patients with bimalleolar fracture who were scheduled for surgery. They were randomly assigned and divided in two groups. Patients from the first group underwent an Ultrasound-guided femoro-popliteal block (US-FPB), while a spinal anesthesia (SA) was performed for the second group. The local anesthetic 0.5% bupivacaine was used in both groups. RESULTS: Eighteen patients from the first and nineteen patients from the second group completed the study. Levels of anesthesia were sufficient in both groups without significant differences. Duration of postoperative analgesia was significantly higher in US-FPB group in comparison to SA group (12 ± 3 vs. 3 ± 1 h) (p < 0.001). At the same time, onset of complete sensory motor block was significantly faster in SA group in comparison to US-FPB group (5 ± 1 vs. 8 ± 3 min) (p < 0.001). CONCLUSION: Minimal invasive US-FPB provides sufficient anesthesia for ankle fracture. In comparison to the SA group, patients from the US-FPB group achieved significantly longer postoperative analgesia, while faster onset of anesthesia was noted in SA group.

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Correspondence to Alen Protić.

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Protić, A., Horvat, M., Komen-Usljebrka, H. et al. Benefit of the minimal invasive ultrasound-guided single shot femoro-popliteal block for ankle surgery in comparison with spinal anesthesia. Wien Klin Wochenschr 122, 584–587 (2010). https://doi.org/10.1007/s00508-010-1451-9

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  • DOI: https://doi.org/10.1007/s00508-010-1451-9

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