Cannulated and non cannulated bone fixation screws have been used successfully in a broad range of orthopaedic procedures for a number of years. They are technology stable devices, and as such, design improvements are incremental in nature. Notwithstanding the mature nature of bone screw technology, a combination of improved features and design enhancements mean that not all bone screws are necessarily created equal, especially when intended for use in specific orthopaedic sub specialty areas, such as extremity surgery.
UK – System 26 Headed & Headless Cannulated Screw System
US – System 26 Headed & Headless Cannulated Screw System
System26 has been designed to facilitate compression at the fusion site and offers self drilling and self tapping, headless and headed, screws from 2.0mm to 8.0mm in diameter, with cannulated and non cannulated options, in a range of lengths and thread variants. The comprehensive instrumentation and implant sets offer modularity and simplicity so that surgery can be carried out effectively and efficiently across a range of foot and ankle indications, with one system.
Reduces risk of stripping screw head and maximises efficient screw insertion.
Headed and headless screw options are available to meet clinical preference. Headed screw incorporates a low profile head. Countersinks are also available for both screw options.
Smooth tapered neck engages the proximal bone and augments reduction of the osteotomy and forward cutting flutes ensure effective self tapping minimising the risk of fracture of proximal cortex.
Headless screws maximise compression across the osteotomy site by utilising a differential thread pitch between the leading and trailing threads.
Opposing near vertical flank angles of the leading and trailing threads are designed to generate compression across the osteotomy site and resist pull out.
Three thread options available for 6.5mm and 8.0mm diameter screws - 15mm, 30mm, and fully threaded. Screws ≤ 5mm diameter have thread equal to 35% of screw length.
Flute tip formation ensures effective bone cutting and engagement.
Screws ≤ 4.0mm diameter have 3 flute formation.
Screws ≥ 4.0mm diameter have 4 tip formation.
Comprehensive extremity screw range facilitates surgical treatment of simple to complex foot disorders with one system.
| Diameter
(mm) |
Length
(mm) |
Thread
(mm) |
Washer
(headed only) |
| 2 (twist off) | 10 – 18
in 1mm increments |
35% of length |  |
| 2 | 10 – 30
in 2mm increments*¹ |
35% of length | |
| 2.5 | 10 – 30
in 2mm increments*² |
35% of length | |
| 3 | 10 – 40
in 2mm increments*² |
35% of length | |
| 4 | 10 – 50
in 2mm increments*³ |
35% of length |  |
| 55 – 70
in 5mm increments |
|||
| 5 | 30 – 50
in 2mm increments |
35% of length | |
| 55 – 90
in 5mm increments |
|||
| 6.5 | 35 – 120
in 5mm increments |
15, 30, fully threaded | |
| 8 | 35 – 120
in 5mm increments |
15, 30, fully threaded | |
*¹ – solid range 10 – 16mm | *² – headless range 12 – 30mm | *³ – headless range 14 – 70mm
The System26 Foot and Ankle screw range has been configured to offer the clinician a comprehensive selection of screw types and sizes for forefoot, midfoot and hindfoot surgical procedures. There are 25 screw types available in the system. The screw variants include headed and headless, solid and cannulated and a twist off version in the forefoot set.
The instrument and implant sets have been modularised to ensure ease of use and the most efficient use of time by all the operating room team.
The instrumentation system has been designed to ensure that it is intuitive and easy to use for all those involved in the surgical procedure. All size specific instruments are colour coded to align with the associated screw sizes. The layout of the sets ensures that the instruments are easy to identify and access. Instruments which interface with other instruments, or implants, are easy to assemble.