TY - JOUR T1 - The Use of Polyaxial Pedicle Screw for the Fusion of Lumbar Vertebra in Sheeps AU - Duzgun, Oktay AU - Eravci, Ebru AU - Aktas, Mustafa AU - Devecioglu, Yalcin AU - Demirutku, Alper AU - Mutlu, Zihni JO - Journal of Animal and Veterinary Advances VL - 10 IS - 9 SP - 1202 EP - 1204 PY - 2011 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2011.1202.1204 UR - https://makhillpublications.co/view-article.php?doi=javaa.2011.1202.1204 KW - Spine KW -pedicle screws KW -pedicular fixation KW -sheep KW -nods KW -Turkey AB - In this study, 10 sheeps with the average age of 1.5 years old, weighing approximately 50-70 kg were used. Hemilaminectomy was performed in the interspace between L4 and L5 on the left side. The pedicle screws were attached to each other by means of a rod and the fixation process was accomplished by screwing the nods on the top of the screws. Cortical bone graft obtained during the decortications of proc. transversus and proc. articularis and of laminas in the interspace between L3 and L6 was combined with grafts taken from ilium and placed between proc. transversuses. No screw loosed in none of the cases in 12 weeks period. Radiographic assessments were made on the 4, 8 and 12th weeks. In the assessments on 12th week, it was observed that ankylosis was completely formed. ER -