Quantitative comparison of a laterally misplaced pedicle screw with a re-directed screw. How much pull-out strength is lost?

Korkmaz, Murat; Sanyilmaz, Kerim; Ozkunt, Okan; Gemalmaz, Halil; AKGÜL, Turgut; Sungur, MUSTAFA; Dikici, FATİH; Baydoğan, Murat

doi:10.1016/j.aott.2018.03.002

Quantitative comparison of a laterally misplaced pedicle screw with a re-directed screw. How much pull-out strength is lost?

Korkmaz M., Sanyilmaz K., Ozkunt O., Gemalmaz H. C., AKGÜL T., Sungur M., ...Daha Fazla

ACTA ORTHOPAEDICA ET TRAUMATOLOGICA TURCICA, cilt.52, sa.6, ss.459-463, 2018 (SCI-Expanded, Scopus, TRDizin)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 52 Sayı: 6
Basım Tarihi: 2018
Doi Numarası: 10.1016/j.aott.2018.03.002
Dergi Adı: ACTA ORTHOPAEDICA ET TRAUMATOLOGICA TURCICA
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
Sayfa Sayıları: ss.459-463
Anahtar Kelimeler: Pedicle screw placement, Lateral wall perforation, Pull-out strength, Free hand technique, Biomechanics, ADOLESCENT IDIOPATHIC SCOLIOSIS, THORACIC PEDICLE, COMPUTED-TOMOGRAPHY, FREE-HAND, PLACEMENT, ACCURACY, LUMBAR, SPINE, INSTRUMENTATION, COMPLICATIONS
Acıbadem Mehmet Ali Aydınlar Üniversitesi Adresli: Hayır

Özet

Objective: Redirecting of a laterally misplaced pedicle screw into the accurate position decreases the pull-out strength due to the reinsertion, lateral wall cortical perforation and widening of the pedicle hole. Thus, this biomechanical study was performed to quantitatively analyze the pullout strength of a redirected laterally misplaced pedicle screw into the accurate position.