in the initial stages there are variety of non surgical and surgical treatments.
non surgical includes casting of the wrist joint to prevent further damage.
but now a days surgical treatment are favored and there are many like "joint leveling operations" and "wedge osteotomies" to name a few. the purpose of all these is to take load off your diseased bone. so this answers your question that you should avoid heavy weight lifting with your wrist as a precaution. as far as your query about revascularization is concerned, it is a very good option in the early stages of disease. after this operation the vessels which are transferred to the diseased bone needs to be protected with either pinning or external fixator. so post surgical stiffness
will occur. also the course of disease is unpredictable and in 10-20% of cases the disease worsens even after the best of treatments.
best of luck.