Skip to main content
Erschienen in: International Journal of Computer Assisted Radiology and Surgery 1/2019

31.08.2018 | Original Article

Standard navigation versus intraoperative computed tomography navigation in upper cervical spine trauma

verfasst von: Barbara Carl, Miriam Bopp, Mirza Pojskic, Benjamin Voellger, Christopher Nimsky

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 1/2019

Einloggen, um Zugang zu erhalten

Abstract

Purpose

In surgery of C1–C2 fractures, standard navigation for screw placement based on preoperative image data was compared with intraoperative imaging guidance applying intraoperative computed tomography (iCT) with a special focus on accuracy of screw placement, workflow, and radiation exposure.

Methods

A single surgeon series of 16 consecutive patients with C1–C2 trauma was retrospectively analyzed. Seven patients were operated with standard navigation; preoperative image data were registered by a 20-point surface-matching process for each vertebra. Nine patients were operated with iCT guidance, allowing automatic navigation registration. Screw placement was examined and graded with either iCT or postoperative CT. Dose length product of CT and dose area products of fluoroscopy scans were assessed; effective radiation doses were estimated based on conversion factors. Radiation doses of intraoperative and postoperative X-ray and/or CT diagnostics for each group were summarized to compare the total effective doses.

Results

A total number of 72 screws were placed, 26 in the standard navigation group including 24 screws in C1 and C2, and 46 screws in the iCT group including 34 screws in C1 and C2. 15.38% (n = 4) of the C2 screws showed a grade 1 deviation and 3.8% (n = 1) a grade 2 deviation applying standard navigation. There was no misplacement of screws in the iCT group. Mean operating time in the standard navigation group was 186.57 min versus 157.11 min in the iCT group, while the mean summarized effective dose was 1.129 mSv in the standard navigation and 2.129 mSv in the iCT group.

Conclusion

iCT navigated surgery can lead to higher accuracy and shorter operating time compared to standard navigated operations. iCT is a safe and straightforward procedure allowing reduction in radiation exposure of the medical staff, while modified scan protocols resulted in a radiation exposure that is lower than in standard diagnostic neck CT.
Literatur
1.
Zurück zum Zitat Harms J, Melcher RP (2001) Posterior C1–C2 fusion with polyaxial screw and rod fixation. Spine (Phila Pa 1976) 26(22):2467–2471CrossRef Harms J, Melcher RP (2001) Posterior C1–C2 fusion with polyaxial screw and rod fixation. Spine (Phila Pa 1976) 26(22):2467–2471CrossRef
11.
Zurück zum Zitat Laine T, Lund T, Ylikoski M, Lohikoski J, Schlenzka D (2000) Accuracy of pedicle screw insertion with and without computer assistance: a randomised controlled clinical study in 100 consecutive patients. Eur Spine J 9(3):235–240CrossRefPubMedPubMedCentral Laine T, Lund T, Ylikoski M, Lohikoski J, Schlenzka D (2000) Accuracy of pedicle screw insertion with and without computer assistance: a randomised controlled clinical study in 100 consecutive patients. Eur Spine J 9(3):235–240CrossRefPubMedPubMedCentral
21.
22.
Zurück zum Zitat Dvorak J, Penning L, Hayek J, Panjabi MM, Grob D, Zehnder R (1988) Functional diagnostics of the cervical spine using computer tomography. Neuroradiology 30(2):132–137CrossRefPubMed Dvorak J, Penning L, Hayek J, Panjabi MM, Grob D, Zehnder R (1988) Functional diagnostics of the cervical spine using computer tomography. Neuroradiology 30(2):132–137CrossRefPubMed
24.
Zurück zum Zitat White AA 3rd, Panjabi MM (1978) The clinical biomechanics of the occipitoatlantoaxial complex. Orthop Clin North Am 9(4):867–878PubMed White AA 3rd, Panjabi MM (1978) The clinical biomechanics of the occipitoatlantoaxial complex. Orthop Clin North Am 9(4):867–878PubMed
25.
Zurück zum Zitat Rampersaud YR, Foley KT, Shen AC, Williams S, Solomito M (2000) Radiation exposure to the spine surgeon during fluoroscopically assisted pedicle screw insertion. Spine (Phila Pa 1976) 25(20):2637–2645CrossRef Rampersaud YR, Foley KT, Shen AC, Williams S, Solomito M (2000) Radiation exposure to the spine surgeon during fluoroscopically assisted pedicle screw insertion. Spine (Phila Pa 1976) 25(20):2637–2645CrossRef
26.
Zurück zum Zitat Dewey P, Incoll I (1998) Evaluation of thyroid shields for reduction of radiation exposure to orthopaedic surgeons. Aust N Z J Surg 68(9):635–636CrossRefPubMed Dewey P, Incoll I (1998) Evaluation of thyroid shields for reduction of radiation exposure to orthopaedic surgeons. Aust N Z J Surg 68(9):635–636CrossRefPubMed
35.
Zurück zum Zitat Pireau N, Cordemans V, Banse X, Irda N, Lichtherte S, Kaminski L (2017) Radiation dose reduction in thoracic and lumbar spine instrumentation using navigation based on an intraoperative cone beam CT imaging system: a prospective randomized clinical trial. Eur Spine J 26(11):2818–2827. https://doi.org/10.1007/s00586-017-5229-x CrossRefPubMed Pireau N, Cordemans V, Banse X, Irda N, Lichtherte S, Kaminski L (2017) Radiation dose reduction in thoracic and lumbar spine instrumentation using navigation based on an intraoperative cone beam CT imaging system: a prospective randomized clinical trial. Eur Spine J 26(11):2818–2827. https://​doi.​org/​10.​1007/​s00586-017-5229-x CrossRefPubMed
Metadaten
Titel
Standard navigation versus intraoperative computed tomography navigation in upper cervical spine trauma
verfasst von
Barbara Carl
Miriam Bopp
Mirza Pojskic
Benjamin Voellger
Christopher Nimsky
Publikationsdatum
31.08.2018
Verlag
Springer International Publishing
Erschienen in
International Journal of Computer Assisted Radiology and Surgery / Ausgabe 1/2019
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI
https://doi.org/10.1007/s11548-018-1853-0

Weitere Artikel der Ausgabe 1/2019

International Journal of Computer Assisted Radiology and Surgery 1/2019 Zur Ausgabe

Update Radiologie

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.