The short answer to “how to keep all of his/her options such as a future orthopedic surgery residency at HSS open” is “yes”…? Yes to what? It’s hard to see either of these undergrad schools limiting future options in any way.
All of which is moot because the OP never responded to anybody’s input, and hasn’t been back to CC in almost two weeks. I expect they have moved on to whichever bright future they have chosen.
I still think a free-standing thread on the topic of residencies and what undergrad schools they end up drawing from would be interesting and helpful to be able to refer to. That wasn’t a criticism.