If it does, how would you intergrate the therapy in your day to day practice?
No, the idea is not to have psychotherapists practice prosthetics - that is illegal from a medical ethic practices side. The idea is to take the basic understanding that patients life stories are intertwined with other stories and how it links with their main story. E.g. An elderly woman who underwent for a trans-tibial amputation due to diabetes struggles to accept the amputation and rehabilitation for her prosthesis. She recently lost her husband and is still struggling to cope with the loss. She links the depression of her loss of her husband with the loss of her leg which deepens the depression abyss. By taking a detailed patient history, a better rehabilitation plan can be formulated. This patient can be send for counseling of her husband's loss and her loss of her leg. Additional time should be scheduled for prosthetic training.
If narrative therapy is not advisable, should we include psychology therapies in orthotics and prosthetics?
My flippant comment aside there are very helpful strategies.
One of the most useful paths is to have the patient attend amputee support group meetings which make the dreaded experience of amputation less isolating.These are best when connected to a hospital base in some way as opposed to sponsorship by a private company. Often this is better than any form of therapy and opens the door to other people's experiences and creates an enjoyable social interaction. Formal hospital based Amputee clinics are also helpful in bringing all the specialties of an experienced rehab team together. These are unfortunately very difficult to find in some areas and can be expensive to find but are invaluable in making assessments of the person's various psychological, physical, social, vocational, and medical needs and prosthetic suitability.
Prosthetists can often help alleviate anxiety by having patients with similar problems meet in the office directly or indirectly but gambits at psycho-therapy in a prosthetist/orthotic office is a non-starter in my opinion and can be more self-serving than helpful. The Amputee Coalition of America offers very helpful information: http://www.amputee-coalition.org/