Particular

I would have written:

The doctor explained to the patient the details of the operation.

Yes, I would write that way too. But for now, I'm thinking about the word 'particular' and the variation of it.

Two questions:

#1:Does the article 'the' in front of 'particulars' necessary? Would it work without it?

The doctor explained to the patient about particulars of the surgery.

#2: Does these work and make different sense?

The doctor ex

#1 OK.
#2 No good.

So about #2, whether with or without the article, 'particularity' doesn't make sense here, right?

Right.

The particularity of the surgery cannot mean that it's a special surgery or a unique surgery?

It does not sound to me like anything anyone would say or write.

I see. Thanks, MM!

The sentence, "The doctor explained to the patient about the particulars of the surgery.", is readily understandable and quite elegant-sounding, but there is a slight problem because the verb "explain" is typically transitive and here there is no direct object. To provide a direct object you would say: "The doctor explained to the patient the particulars of the surgery."