Carbon Fiber Connecting Rod
Additional Product Information
Carbon fiber rods cannot be bent or contoured for transarticular use. If transarticular frames are needed consider a modified transarticular clamp. Carbon fiber rods cannot be cut with bolt cutters but must be cut with a fine tooth hack saw blade or dremel tool with abrasive disc. Place a moist towel over the saw and rod when cutting to contain any carbon dust created. Keep a variety of rod lengths on hand to avoid the need to cut to length.
Small SK Carbon Fiber Connecting Rods, 6.3 mm Diameter
Available in lengths up to 250 mm. Compared to KE stainless steel rods, the small carbon fiber rod is five times stronger than a small KE rod and nearly as strong as a medium KE rod. Therefore, when utilizing 2.0 mm pins or small pins, carbon fiber has more than adequate strength.
Large SK Carbon Fiber Connecting Rods, 9.5 mm Diameter
Available in lengths up to 350 mm. Tremendous rod strength compared to traditional KE type rods. The large 9.5 mm carbon fiber SK rods are approximately seven times stronger than medium KE stainless steel rods.
How are carbon fiber ESF rods cut to length?
Carbon fiber rods are not to be cut with bolt cutters or pin cutters; however, they can readily be sawed with a fine-toothed hacksaw blade. Carbon fiber dust is potentially dangerous, so it is recommended that a damp paper towel be laid over the cutting area to capture any dust. Small SK titanium rods can be cut with a large bolt cutter but tend to develop a significant burr that must be smoothed with a file or sanding material. All SK ESF System connecting rods are stocked in several length choices. The variety of lengths available should greatly reduce the need for cutting rods.
How should carbon fiber rods be used to construct contoured rod frames?
Carbon fiber composite rods cannot be contoured. Readily constructed circular and hybrid frames, stable double clamps, and other alternatives to rod-bending usually result in fixation superior to contoured rod frames. Contouring rods is rarely performed with modern external fixators.
Why are both carbon fiber and titanium rods available with the small SK fixator?
The 6.3 mm titanium rod is approximately twice the strength of the 6.3 mm carbon fiber rod. On lower limbs, Type I-b or Type II minimal frames will extend the upper weight range for carbon rods. For larger patients, the added strength of titanium rods is advantageous, especially if attempting to simplify frames or in most fractures involving the humerus or femur. At some point, more complex frames need to be built or large SK ESF rods and clamps should be utilized. Both carbon and titanium rods are in the small SK starter kit, but customers usually reorder their ultimate preference. Differences in strength can be utilized as part of a plan for staged disassembly or rod downsizing.