Hi, thanks for writing to HCM.
Based on the description, I suspect that your husband might have suffered a Pathological fracture
(due to the tumour mass weakening the bone) of the bone.
This condition has to be treated accordingly based on the fracture pattern by a an orthopedic surgeon. There is no role of Home remedies
or self care measures.
I suggest you to approach your treating doctor for further management.
Hope this information is helpful. Good day