Traction is a treatment that may be prescribed by your physiotherapist. It can be provided manually or mechanically.
Mechanical traction involves a specific force determined by your physiotherapist that will apply decompression to your spine. Your condition will determine how much force is needed and what program cycle of traction your physiotherapist will advise for you.
It is typically used to treat spinal injuries often with related nerve compression.
You do not need a special referral for traction nor does the cost differ from your normal treatment cost.