Differences in Trocar Positioning within the Vertebral Body Using Two Different Positioning Methods: Effect on Trainee Performance

Figure 2

Plain radiographs for evaluation. (a) Landmark method, frontal view. (b) Landmark method, lateral view. (c) ISOP method, frontal view. (d) ISOP method, lateral view.

(a)

(b)

(c)

(d)