You can actually try splinting the toe by taping the 5th toe (pinky toe) to the 3rd and 4th toes for 4-6 weeks. If that does not work, then surgery may be necessary.

Relocate the toe and buddy tape it for 4 weeks.

No. It is important to know more about the injury specifically as already posted what bone(s) were broken and if the toe is still dislocated. The "pinky" or 5th toe can do very well with non surgical treatment unless there are risks of nerve, circulation or tissue-skin damage. It is not always necessary to repair a fracture just because it can be done. As posted question your doctor about the options or get the 2nd opinion. By the way the bone may not heal "correctly" but become pain free and without any further problems.

Best for your wife. With the RA she should have a podiatrist follow her for changes to her feet/ankles.

If the injury only involves soft tissue, and not a fracture in multiple fragments, this condition can most likely be treated by an ethical, competent physician. If the is a compicated fracture, as well soft tissue damage, surgery MIGHT be necessary.

No, surgery is not the only option. The dislocation can be relocated if it hasn't already reduced on its own. You can allow it to heal in the appropriate position if it is splinted or taped adequately. If this fails then certainly surgical intervention can be entertained.

Typically, a dislocation refers to where the bones involved in a joint are shifted significantly out of their proper alignment to the point where the joint cannot function properly. I assume you are referring to a dislocation from a recent injury. Such dislocations can happen to small joints, such as in a toe or larger joints, such as the ankle. There may or may not be fractures of the involved bones. Joints are held in place by ligaments and other soft tissues. In most cases, for a dislocation to occur, there must be significant tearing of the supporting ligaments. Although it may be possible in many cases to put the joint back in the normal position by manipulating the involved bones back into position without surgery, this is not true in every case. The other concern is to be sure that the involved bones will stay in the proper alignment and the torn ligaments will heal properly to be sure the joint will not repeatedly dislocate. In cases of dislocations of a toe, if the toe bone cannot be successfully put back into proper position and maintained in that position without surgery, then placement of a metal pin may be necessary to stabilize the toe until it heals. This would need to be based on the evaluation and initial attempts at conservative treatment (if possible) by a doctor who treats such problems.

If this is a more chronic situation, then surgery typically is the only solution to get the toe back into position and have it maintained in that position.

This is largely dependent which joint was dislocated, whether any bones were broken and if it was reduced. If it was simply dislocated and the toe was unable to be held in reduction with taping/casting, then a pin (rod) application would be discussed between you and your surgeon. Surgery may be an option in this case. However, treatment would largely depend on the extent of the injury. If you have any questions about the treatment protocol, getting a 2nd opinion is always helpful.