Effect of Coronal Angulation of Sacral Vestibule S2 on Morphometric Analysis of Sacral Vestibule Using Plain Computed Tomography in North-West Indian Population.

BACKGROUND: The present study was aimed to study and develop in-depth understanding of the effect of the coronal angulation of sacral vestibule S2 on morphometry of sacral vestibule in north-west Indian population presenting to our institution, which will go a long way in planning to treat the posterior pelvic injuries with percutaneous screws, thereby reducing the morbidity associated with open fixation.
METHODS: This study was conducted in the Department of Orthopaedics and Radiodiagnosis at Dr Rajendra Prasad Govt.Medical College, Kangra at Tanda over a period of one year. All the patients of the age > 18 years and above submitting for either abdominal, lower spinal or non-orthopedic pathology of pelvic region, presenting for computed tomography to the Department of Radiodiagnosis were included in the study.
RESULTS: The coronal angulation of S2 vestibule ranged from 1° to 10° with a mean of 5.06° ± 2.77°. There was a weak relation between coronal angulation of S2 and age-groups 18-30 years (r = 0.105; P = 0.186), 31-40 years (r = 0.040; P = 0.715), 41-50 years (r = - 0.085; P = 0.330), 51-60 years (r = 0.119; P = 0.079), and > 60 years (r = - 0.166; P = 0.605). There was non-significant difference in coronal angulation of S2 (P = 0.913) between males and females. There was a weak relation between interspinus distance with coronal angulation of S2 (r = 0.069; P = 0.090). There was no relation between height with coronal angulation of S2 (r = 0.019; P = 0.631).
CONCLUSION: The present study, the first of its kind in the north-western part of India arrived to help us anthropometric measurements of sacral vestibule, thereby, helping in development of local protocols for percutaneous fixation in sacral fracture. © Indian Orthopaedics Association 2021.