Which of the following did Mr Dattani say was the more challenging to treat?

On Xray, what is it that might indicate that the rotator cuff tendons are no longer intact?

What does a "Reverse Shoulder Replacement" entail?

Mr Dattani stated that 10% of patients might experience a complication after steroid injection therapy.  What is that complication?

In an osteoporotic patient, what precaution did Mr Dattani say he might take?