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Figure 4 :Superficial bony landmarks for placement of pedicular screws through the “Free-hand” technique in the upper thoracic (T1-T4): The entry-point is located at the junction of the line which bisects transverse process and a vertical line along. Note that there is a trend towards a more lateral and caudal direction as one proceeds from the mid to upper thoracic spine

Figure 4 :Superficial bony landmarks for placement of pedicular screws through the “Free-hand” technique in the upper thoracic (T1-T4): The entry-point is located at the junction of the line which bisects transverse
process and a vertical line along. Note that there is a trend towards a more lateral and caudal direction as one proceeds from the mid to upper thoracic spine