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Demonstration of how the technique work
A: saw bone model showing the pelvis squared to the table (inter-ischial line “line 2” is perpendicular to table level line “line 1”), the supraacetabular rod is adjusted to 40˚ using smartphone spirit level application. Intraoperative images are showing using different types of smartphone applications, B: iPhone spirit level app. And C: android platform based smartphone bubble level app.
