In your grandfather's case this has happened twice but fortunately both the times
it got reduced. If at any time
it becomes irreducble then emergency surgery
has to be performed with a associtaed higher complication/ morbidity rate than a planned surgery. It should be decision of the family whether to opt for surgery or wait. Surgery can be done under local anaesthesia with little risk if there is no medical comorbidity (I mean no diabetes, hypertension, COPD etc).