Can The Fracture Line of Type II Odontoid Fractures Come to A Neutral Position After Anterior Odontoid Screw Fixation without a Manipulation?

Kuytu T., Karaoglu A., Celik M., Aydemir F., Ozpar R., Tuzun Y.

Turkish Neurosurgery, vol.32, no.5, pp.793-801, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 5
  • Publication Date: 2022
  • Doi Number: 10.5137/1019-5149.jtn.36245-21.2
  • Journal Name: Turkish Neurosurgery
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Page Numbers: pp.793-801
  • Keywords: Displaced odontoid fracture, Manipulation, Median odontoidobasal angle, Anterior screw fixation, MANAGEMENT
  • Bursa Uludag University Affiliated: Yes


© 2022, Turkish Neurosurgery. All Rights Reserved.AIM: To examine whether there was an improvement in the displaced fracture line in the follow-up, in which Anterior odontoid screw fixation (AOSF) was performed without manipulation and to determine the “displacement angle range” in which AOSF was possible. MATERIAL and METHODS: A total of 11 patients with the diagnosis of type II odontoid fracture who underwent AOSF without manipulation were analyzed retrospectively. A control group of 30 cases was formed and odontoid related angle measurements were performed on cervical computed tomographies (CT) of the control group and the patients who were operated. RESULTS: In 6 of 7 cases in the posterior-displaced group along with all cases in the anterior-displaced group, it was determined that the displacement angles returned to the normal range in the 1st year follow-up. In 1 case having posterior displacement with posterior longitudinal ligament (PLL) damage, it was observed that the displacement angle improved to the normal range significantly, but the displacement continued. CONCLUSION: AOSF is a minimally invasive, safe and effective method in patients with displaced type II odontoid fracture, which is between the median odontoidobasal angle range of 100°-134°, whose PLL is preserved, and which cannot be manipulated.