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Table 1 Thread dimensions for the four pedicle screw designs

From: Pullout strength of different pedicle screws after primary and revision insertion: an in vitro study on polyurethane foam

Screw Design

OD

(mm)

ID

(mm)

Pitch

(mm)

Flank Angle (o)

SLT

6.0

4.4

2.5

10

6.5

4.6

DLT

6.0

4.4

2.5

20

6.5

4.6

MSLT

6.0

4.4

1.55/3.1

proximal/distal

10

6.5

4.6

PUDL

6.0

4.4

2.5

20

6.5

4.6

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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