I would splint it with two wooden coffee stirrers, which will create a gap for cutting the tape off with fine scissors. I would use a stretchable tape such as electrical tape.

Paper first aid tape removes easily and if you know someone who works in a Doctor's office they might have access to Parafilm which is really good for this as it expands under pressure.
I like the coffee stirrer splints that Michael suggests.

I had a huge knob form on my Cl SDLM that produced several canes-the wind split it...I used velcro tape-you can get it in the garden center for tying up plants. It will breath and you can adjust it if need be. Mine healed and bloomed all last summer. I think on a cane splinting is a good idea..I had the trellis to attach to.

patricia