COMPUTED TOMOGRAPHY MEASUREMENTS OF OCCIPITAL BONE THICKNESS IN CHILDREN
Journal Title: Journal of Turkish Spinal Surgery - Year 2019, Vol 30, Issue 3
Abstract
Background Data: The unique anatomy of the craniovertebral junction, the perceived high risk of vascular and neurological complications, and the anatomical variations require the morphological analysis of the occipital bone. Purpose: The purpose of this study was to present morphometric analysis of the pediatric occipital bones and to provide guidance for pediatric occipitocervical fusion. Materials - Methods: We retrospectively reviewed the records of pediatric patients who had undergone head CT scanning due to various reasons. Patients with traumatic fractures, congenital abnormality, tumor or other diseases and problematic CT images were excluded. Occipital bone thicknesses were determined at three levels (each level having 5 points) starting from the external occipital protuberance (EOP) (Level 0) and extending inferiorly for 2 cm by 1-cm decrements (Level 1 and Level 2). Results: Among 300 CT scans, 70 were found to be suitable for the study. There were 50 males and 20 females, with a mean age of 9.9 ± 4.40 years (range 2–17 years). The external occipital protuberance (EOP) had the greatest thickness, with mean values of 10.3 ± 2.99 mm (range, 5.0-18.5 mm) in males and 9.9 ± 2.41 mm (range, 5.1–14.1 mm) in females. At each level, the midline was always thicker than the lateral regions at each age group (p<0.001). The midline thickness at Level 0, 1 and 2 were thicker in males compared to females (p=0.011, p=0.045 and p=0.032, respectively). Positive correlation was found between age and occipital bone thickness (r=0.828 and p<0.001 for EOP, r=0.770 and p<0.001 for midline at Level 1, r=0.792 and p<0.001 for midline at Level 2) and the other points showed similar findings. Conclusion: Safe zones with thicknesses > 8 mm for screw insertion were found only at the midline in children older than 5 years of age and preoperative evaluation of occipital thickness should be performed in every patient considering the individual variability.
Authors and Affiliations
Mustafa Yavuz SAMANCI, Semra IŞIK
Keywords
Related Articles
- EP ID EP677065
- DOI -
- Views 165
- Downloads 0
SCOLIOSIS PREVALENCE IN CONGENITAL HEART DISEASE PATIENTS
The association between scoliosis and congenital heart disease has been well known for many years. The incidence of scoliosis in patients with congenital heart disease has been reported as 4.2%. This rate is higher for p...
ANTERIOR CERVICAL FUSION WITH BONY SCREW
Anterior approach has been extensively used for cervicai fractures and disc pathologies for the last 40 years. Cloward operation is the most popular procedure for such cases. Very few modifications have been proposed for...
RADSONUCLID AND HfSTOPATHOLOGlCAL EVALUATION OF COMBİNED ALLOGRAFT AND AUTOGENEOUS GRAFT APPLICATIONS İN ANTERIOR AND POSTERİOR SPINAL FUSİON
Autogeneous grafting is most effective choice in obtaining fusion in spinai surgery. Aİİograft usage is also popular especially when the autogeneous graft mass in insufficient. İn this study, 42 patients were evaluated İ...
RESULTS OF COMPLETE HEMIVERTEBRA EXCISION WITH A POSTERIOR APPROACH ALONE, FOLLOWED BY CIRCUMFERENTIAL FUSION AND POSTERIOR INSTRUMENTATION, IN PATIENTS WITH FULLY SEGMENTED AND UNINCARCERATED HEMIVERTEBRAE
Objective: To evaluate the results of surgical treatment of patients with an unincarcerated fully-segmented hemivertebra treated with hemivertebrectomy by a posterior approach alone, circumferential fusion and posteri...
THE EVALUATION OF THE FIVE YEARS FOLLOW-UP RESULTS OF BODY BALANCE ANALYSIS AND SRS-22 QUESTIONAIRE OF THE PATIENTS WITH FULLY SEGMENTED HEMIVERTEBRAE TREATED WITH ANTERIOR OR POSTERIOR INSTRUMENTATION AFTER TOTAL HEMIVERTEBRECTOMYAND CIRCUMFERENTIAL FUSION
Purpose: The aim of this study is to evaluate the minimal five years results of fully segmented unlocked hemivertebral congenital scoliosis patients who undergone hemivertebrectomy Patients and method: 20 fully se...