Objective
The objective of this study was to research the jugular foramen, internal auditory pore, and the turning point between its components using imageological methods and provide theoretical basis for retrosigmoid approach.
Methods
A total of 100 cases of adult hip computed tomographic scans were reconstructed. α, β, AC, AB, BC, and the shortest distance were measured.
Results
The angle α was measured as 39.50 (4.74) degrees (range, 29.3–48.5 degrees; 95% confidence interval [CI], 38.64–40.35 degrees). The angle β was measured as 46.35 (5.51) degrees (range, 31.09–64.74 degrees; 95% CI, 45.35–47.35 degrees). The distance of AC was measured as 44.94 (3.84) mm (range, 34.9–54.9 mm; 95% CI, 44.25–45.64 mm). The distance of AB was measured as 43.68 (4.56) mm (range, 33.8–54.7 mm; 95% CI, 42.86–44.51 mm). The distance of BC was measured as 6.15 (2.04) mm (range, 2.7–14.7 mm; 95% CI, 5.78–6.52 mm). The safe distance was measured as 5.21 (0.23) mm (range, 0.84–12.92 mm; 95% CI, 5.17–5.25 mm).
Conclusions
These previously mentioned results can help to locate these structures in the measurement plane and provide reference for surgery.
