Skip to content

Micro Screw


The management of small fractures in the hand and wrist is difficult due to the small size, fragile nature, and importance of accurate reduction. The requirement to use clamps and forceps while maintaining position for implant preparation and insertion is challenging. 
The fully cannulated Micro Screw system is designed to address these challenges and make the management of small fractures easier. With increased implant strength at a smaller scale and cannulated precision, surgeons can accurately reduce fragments with small diameter K-wires while maintaining positions for single shot insertion of a definitive implant that generates adequate compression to facilitate healing.

Key Features

Built on the values of precision and strength, the implant design accommodates a simpler, faster repair that offers an alternative to K-wires and the associated complications.

Design: Fully cannulated design for single shot insertion, reinforced head geometry for strength during insertion and compression and an optimised lagging geometry. 

Fixation: Immediate compression with definitive and rigid fixation at a small scale. 

Range: 1.5mm and 2.0mm diameter options ranging in length from 6mm – 22mm at 1mm increments. 

Material: Manufactured from Titanium alloy (Ti-6AI-4V ELI) for strength and biocompatibility. 

Clinical Uses

  • Finger, Thumb, Metacarpal and Wrist.
  • Intra and extra-articular fractures. 
  • Fractures, osteotomies, and arthrodesis of small bones in the hand and wrist.

Size Range

With 34 cannulated partially threaded compression screws available across 1.5mm and 2.0mm diameters, the Micro Screw System offers a comprehensive range.   

Diameters: 1.5mm and 2.0mm

Length Range: 6mm – 22mm

Size Increments: 1mm 


Micro Screw Case Reports

10. Final postop xray 3_Larson_Bennetts

Using Micro Screw for a Bennett’s Fracture of the thumb.

A 20-year-old right-hand dominant male presented to Dr Larson complaining of thumb pain, three days after falling off his skateboard. Radiographic examination revealed a displaced Bennett’s fracture and a relatively small and mildly comminuted Bennett’s fragment. Given the patient’s young age and dominant hand involvement, a closed reduction with percutaneous fixation using the Micro Screw was performed.

11. Post-op 1

Using Micro Screw for a PIPJ Fracture.

A 17-year-old right-hand-dominant male presented with a flexed, swollen and painful right ring finger ten days following an injury sustained when his hand got caught in a dog leash. X-ray revealed a PIP joint fracture, involving a large P2 volar lip fragment and comminution from the base of the middle phalanx. Dr Malone achieved definitive fixation using a volar approach with two 1.5mm cannulated Micro Screws.

5. Post-op

Using Micro Screw for a P2 Corrective Osteotomy.

14-year-old right-hand dominant female competitive equestrian rider presented with a malunited radial condylar fracture of the middle phalanx of the left ring finger. The patient presented to Dr. Couzens with a cosmetic deformity defined by 20 degrees of angulation. Dr Couzens elected to manage the deformity with a sliding osteotomy using a 1.5x8mm and a 1.5x10mm FO microscrew. 

5. Post op

Using Micro Screw for a dorsal lunate fracture.

19 year-old right-hand dominant male student presented with right wrist stiffness, weakness and pain at the extremes of motion and on palpation of the dorsal lunate. X-ray and CT indicated a dorsal lunate fracture with an established non-union. Dr Anderson elected to perform a lunate Open Reduction Internal Fixation (ORIF) with a FO 1.5x12mm microscrew.