External fixation device

Kirschner wire (K-wire)

Schanz pins (S-screws)

Acupuncture needle

Material

Titanium/Stainless steel

Titanium/Stainless steel

Stainless steel

Diameter

1.5-1.8 mm

2-6 mm

0.25 mm

Depth of insertion

To the other side of the limb

To the bone

1.5 cm

Duration of application

Days-to-months

Days-to-months

25-30 minutes