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Possibility of blocking N-ischiadicus within foramen Ischiadicum majus in sheep

MATICIC D, MIHELIC D, ZOBUNDZIJA M, BRKIC A, BABIC K, GJURCEVICKANTURA V, CAPAK D , SUSIC V
Veterinarni Medicina 41, 1996, 273-278

The blocking of the ischiadic nerve within foramen ischiadicus majus of 8 sheep was performed with 6-12 mi 2% xylocain from three different places: 1. From the middle of a line joining the top of processus spinosus of the Ist sacral vertebra and the peak of trochanter major. The needle pierces vertically through the skin, gluteal fascia and m. gluteus medius till foramen ischiadicum majus. 2. Along the most prominent part of crista iliaca on the gluteal surface of ala ossis ilium along the medial side of well expressed linea glutea. The needle pierces by an angle of 45 degrees through the skin, gluteal fascia and m. gluteus medius till the nerve itself. When the nerve is touched the animal makes a jerk. 3. Along the caudal part of tuber sacrale with the needle orientated caudo-ventro-laterally through the skin, gluteal fascia and m. gluteus medius toward foramen ischiadicum majus. The most appropriate approach for blocking is along crista glutea on the gluteal surface of ala ossis ilii. In this approach the success is complete. The symptoms of the blocking appear immediately after the application. The complete akinesia of the limb appears 15 minutes after the application of 6 mi, and 5-10 minutes after being applied 12 mi of 2% xylocain. The blocking symptoms disappear within 90-100, or 120-140 minutes. Beside the blocking of n. ischiadicus, a simultaneous blocking of n. gluteus cranialis, la. caudalis and n. cutaneus femoris caudalis as well was performed within foramen ischiadicus majus


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