The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae

İYİDİKER, Mehmet Akif; Demir, Teyfik; ARSLAN, Arslan Kağan; CAMUŞCU, Necip; Yaman, Onur; ULUTAS, MURAT; TOLUNAY, TOLGA

The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae

Onur YAMAN, (Tepecik Education and Training Hospital, Clinic of Neurosurgery, Izmir, Turkey)

Teyfik DEMİR, (TOBB University of Economics and Technology, Department of Mechanical Engineering, Ankara, Turkey)

Arslan Kağan ARSLAN, (Yenimahalle State Hospital, Department of Orthopedics, Ankara, Turkey)

Mehmet Akif İYİDİKER, (TOBB University of Economics and Technology, Department of Mechanical Engineering, Ankara, Turkey)

Tolga TOLUNAY, (Yenimahalle State Hospital, Department of Orthopedics, Ankara, Turkey)

Necip CAMUŞCU, (TOBB University of Economics and Technology, Department of Mechanical Engineering, Ankara, Turkey)

Murat ULUTAŞ (Konukoglu Hospital, Department of Neurosurgery, Gaziantep, Turkey)

Turkish Neurosurgery

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Yıl: 2015 Cilt: 25 Sayı: 4 Sayfa Aralığı: 532 - 538 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae

Öz:

AmAÇ: Transpediküler vidalarla ilgili olarak en sık karşılaşılan sorunlardan biri de vidaların sıyrılmasıdır. Çalışmanın amacı yeni dizayn edilmiş transpediküler vidaların sentetik blok ve koyun vertebrası üzerindeki sıyrılma kuvvetlerinin sonuçlarını incelemektir. yÖNTem ve GeReÇLeR: Üç farklı pedikül vidası; konik şekilde standard pedikül vidası (Tip A), çift hatveli pedikül vidası (Tip B), çift helisli ve çift hatveli pedikül vidası (Tip C) koyun vertebrası ve sentetik poliüretan (PU) bloklar üzerinde test edildi. PU bloklar 25 mm ve 50 mm olarak; pedikül tutunma ve ayrıca pedikülle beraber korpusun tutunma kuvvetini ölçmek amacıyla iki farklı boyda kullanıldı. BuLGuLAR: C tipi vidaların 25 mm PU bloklar üzerindeki sıyrılma kuvvetleri A tipi vidalardan %5,9 ve B tipi vidalardan %12,9 daha yüksek bulunurken, 50 mm PU bloklardaki sıyrılma kuvvetleri A tipinden %15,4 ve B tipinden %8,6 daha yüksek bulundu. Ayrıca C tipi vidaların koyun vertebrasında yapılan sıyrılma kuvvetleri tip A' dan %74,5 ve Tip B'den %22,5 daha kuvvetli bulundu. soNuÇ: Helikal açıyla yeniden dizayn edilen transpediküler vidaların sıyrılma kuvveti klasik vidalara göre daha iyidir. Modifiye edilmiş helikal açılı transpediküler vidaların diğer bir avantajı da aynı tur sayısında iki kat daha fazla yol alması nedeniyle cerrahi süreyi kısaltmasıdır.

Anahtar Kelime:

Konular: Cerrahi

Değişik Tipte Dizayn Edilmiş Pedikül Vidalarının Sentetik Köpük ve Koyun Omurgasında Sıyrılma Kuvvetlerinin Karşılaştırılması

Öz:

AIm: One of the most common problems with transpedicular screws is screw pullout. This study was conducted to measure the pullout strengths of newly designed transpedicular screws. mATeRIAL and meTHods: The design of the three group screws were conical cored standard pedicle screw (Type A), dual threaded pedicle screw (Type B), dual core and dual threaded pedicle screw (Type C), respectively. Polyurethane (PU) blocks in 25 mm and 50 mm thickness were used to investigate the effect of just the pedicle on pullout strength and both distal (vertebral body) and proximal (pedicle) parts of the screw. The screws were also tested in ovine lumbar vertebrae. ResuLTs: Type C screw exhibited 5.9% and 12.9% higher pullout strength than Type A and Type B, and 15.4% and 8.6% higher pullout strength than Type A and Type B, respectively on 25 mm and 50 mm thick PU foam block. Type C also exhibited 74.5% and 22.5% higher pullout strength than Type A and Type B, respectively on the ovine vertebrae. CoNCLusIoN: Transpedicular screws redesigned with modified helical angles exhibit higher pullout strength compared to the classical transpedicular screws and can be inserted more rapidly with the same number of screwing rounds result with doubled insertion depth.

Anahtar Kelime:

Konular: Cerrahi

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	Yaman O, Demir T, ARSLAN A, İYİDİKER M, TOLUNAY T, CAMUŞCU N, ULUTAS M (2015). The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. , 532 - 538.
Chicago	Yaman Onur,Demir Teyfik,ARSLAN Arslan Kağan,İYİDİKER Mehmet Akif,TOLUNAY TOLGA,CAMUŞCU Necip,ULUTAS MURAT The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. (2015): 532 - 538.
MLA	Yaman Onur,Demir Teyfik,ARSLAN Arslan Kağan,İYİDİKER Mehmet Akif,TOLUNAY TOLGA,CAMUŞCU Necip,ULUTAS MURAT The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. , 2015, ss.532 - 538.
AMA	Yaman O,Demir T,ARSLAN A,İYİDİKER M,TOLUNAY T,CAMUŞCU N,ULUTAS M The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. . 2015; 532 - 538.
Vancouver	Yaman O,Demir T,ARSLAN A,İYİDİKER M,TOLUNAY T,CAMUŞCU N,ULUTAS M The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. . 2015; 532 - 538.
IEEE	Yaman O,Demir T,ARSLAN A,İYİDİKER M,TOLUNAY T,CAMUŞCU N,ULUTAS M "The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae." , ss.532 - 538, 2015.
ISNAD	Yaman, Onur vd. "The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae". (2015), 532-538.

APA	Yaman O, Demir T, ARSLAN A, İYİDİKER M, TOLUNAY T, CAMUŞCU N, ULUTAS M (2015). The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. Turkish Neurosurgery, 25(4), 532 - 538.
Chicago	Yaman Onur,Demir Teyfik,ARSLAN Arslan Kağan,İYİDİKER Mehmet Akif,TOLUNAY TOLGA,CAMUŞCU Necip,ULUTAS MURAT The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. Turkish Neurosurgery 25, no.4 (2015): 532 - 538.
MLA	Yaman Onur,Demir Teyfik,ARSLAN Arslan Kağan,İYİDİKER Mehmet Akif,TOLUNAY TOLGA,CAMUŞCU Necip,ULUTAS MURAT The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. Turkish Neurosurgery, vol.25, no.4, 2015, ss.532 - 538.
AMA	Yaman O,Demir T,ARSLAN A,İYİDİKER M,TOLUNAY T,CAMUŞCU N,ULUTAS M The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. Turkish Neurosurgery. 2015; 25(4): 532 - 538.
Vancouver	Yaman O,Demir T,ARSLAN A,İYİDİKER M,TOLUNAY T,CAMUŞCU N,ULUTAS M The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae. Turkish Neurosurgery. 2015; 25(4): 532 - 538.
IEEE	Yaman O,Demir T,ARSLAN A,İYİDİKER M,TOLUNAY T,CAMUŞCU N,ULUTAS M "The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae." Turkish Neurosurgery, 25, ss.532 - 538, 2015.
ISNAD	Yaman, Onur vd. "The Comparison of Pullout Strengths of Various Pedicle Screw Designs on Synthetic Foams and Ovine Vertebrae". Turkish Neurosurgery 25/4 (2015), 532-538.