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If your granny had a fall resulting in a fracture
it will be mostly Intra trochantric fracture of femur
.She will have to get treated by a Orthopaedic surgeon
.If she is not diabetic or hypertensive and her general condition is good then the doctor will advise surgery to fix the fracture and she should recover.If her condition is inoperable or complicated then even without surgery the bone will get joined but it will not be proper and in old people after such fractures there is always a risk of having paralysis
or heart attack
due to blood clot dislodged from the fracture site.So please consult a Ortho surgeon for treatment.