Title: Morphometric CT based analysis of cervical pedicle and facet joints in South Indian population.
Aim: To evaluate individual morphometric variations of the cervical spine pedicles and facet joints by computed tomography among patients attending a tertiary care centre.
Methodology: A retrospective cross-sectional study was carried out among 25 patients undergoing CT study of the cervical spine at Saveetha Medical College and Hospitals, Thandalam. Various measurements of the cervical pedicles and cervical facet joints were obtained and analysed as mean, standard deviation, and range using Statistical Package for the Social Sciencessoftware.
Results: Among the 25 subjects, 56% were males and 44% were females with mean age of 59.9 and 55.2 respectively. Pedicle length (PL) and Pedicle height (PH) was comparatively smaller in women than in men. Pedicle isthmus (PI) and Lateral pedicle distance (LPD) of C7 was the greatest in both genders. Pedicle axial length (PAL) was equal in both genders with left side being more than the right. Maximum Superior Pedicle distance (SPD) was found to be at C5 level in both genders. Sagittal angulation showed lesser values in females and the Transverse angulation was the lowest at C7 level in both genders. Facet tropism showed a decreasing pattern from C3 to C7 in both genders.
Conclusion: This study helps the surgeon to understand variations in the morphometrics of the study population and will be useful in the determination of a safe treatment modality.
Objectives: The morphometric changes in the vertebral artery are essential for various interventions. Inadequate details about it can lead to risk of vertebral artery injury and other complications. This study explains the normal anatomical course of V2 segment of vertebral artery which is more prone for iatrogenic injury.
Materials and Method: 25 adult patients with symptomatic neck pain were involved in the study. Various measurements were made from seventh cervical vertebra (C7) to the third cervical vertebra (C3) that included Distance from midline to VA, Distance from medial margin of Longus Colli to VA, Perpendicular distance from anterior margin of transverse process to center of VA, Horizontal distance from anterior tubercle to VA, sagittal and coronal diameter of the transverse foramen and vertebral artery.
Result: Distance from midline, Distance from medial margin of Longus Colli, Perpendicular distance from anterior margin of transverse process to center of VA and Horizontal distance from anterior tubercle were increased towards right compared to left side. The sagittal and coronal diameter of the transverse foramen and vertebral artery decreased from C6 to C3 vertebra. Vertebral artery dominance was seen on left side in all cases.
Conclusion: Preoperative assessment by computed tomography angiography helps to know the course of the vertebral artery, understand its patterns and assess various abnormalities thereby aids in preventing complications in future surgeries.
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