C-NAIL – Intraarticular Calcaneal Fixation

C-NAIL is an intramedullary nail for minimally invasive fixation of intra-articular calcaneal fractures. The nail stabilises the four or five main fragments of the fractured calcaneus together with up to seven interlocking screws, giving an angular-stable construct. The sustentacular fragment is fixed to the nail with two interlocking screws placed through an aiming device. Only small incisions are needed to reposition the fragments and insert the nail and screws.

Features

• Minimally invasive approach through small incisions
• Up to seven interlocking screws for angular-stable fixation
• Sustentacular fragment fixed to the nail with two interlocking screws placed through the aiming device
• Insertion depth checked by a marker visible on X-ray

Specifications

• Nail Ø 8 mm, length 65 mm, in separate left (L) and right (R) versions
• End cap extends and closes the nail: 0, 5, 10, 15 or 20 mm
• Locking screws with flat head, Ø 3.5 mm
• Cancellous screws Ø 4 mm, used as lag screws for fixation of the posterior facet
• Washer 4.6 × 8.8 mm

A record of the surgical technique for osteosynthesis of the calcaneus using C-NAIL was prepared by the operating team of Dr Martin Pompach and Dr Martin Carda, Department of Traumatology, Pardubice, Czech Republic.