Orthopedic Herbert Bone Cannulated Compression Headless Screw Implant

Introduction

The Herbert screw is a variable pitch cannulated screw typically made from titanium for its biocompatible properties as the screw is normally intended to remain in the patient indefinitely. It became generally available in 1978.It is one of the earliest designs of headless compression screws which are used to achieve interfragmentary compression through its differential pitch between the threads at each end of the screw(distance between adjacent threads of screw).

It is used in scaphoid, capitellum, radial head and in osteochondral fractures. Other uses include osteochondritis dissecans & small joint arthrodesis.

The thread design of the Herbert Screw creates compression and provides fracture stability. As the proximal threads engage the bone, the fracture is drawn together, helping to create and maintain stability of the fracture site.
Herbert Cannulated Guide Pins hold the fragment and act as guides for drilling, tapping, and screw placement.

Any additional length sizes of this screw will be made on demand.

Herbert Screw is indicated for fixation of fractures and nonunions of small bones and small bone arthrodeses, including scaphoid fractures; intraarticular fractures of the tarsals, metatarsals, carpals and metacarpals; bunionectomies and osteotomies; arthrodeses of small joints (e.g. phalanges); fractures of the patella, ulna and radial styloid.