It isn’t about fall protection. It isn’t even about what gives the best pain control.
Physicians have a tendency to treat their own idiosyncrasies rather than the patient. This person is young and has clearly had a ****ty go at it with bilateral broken arms. Sure, doing bilateral brachial plexus blocks, running 0.5 MAC sevo or just a propofol infusion, seeing 0’s across the board on pain scores, and getting them discharged without so much as a Tylenol may feel great for you. But you’ve relegated this 40 year old to two floppy arms for a day.
Even with their wrists in splints, they can still use their fingers. They can still move their forearms (the elbow isn’t going to be casted). With bilateral blocks, suddenly they have no iPhone. No TV remote. They're completely dependent on a friend / significant other for everything for 24 hours.
Blocking both upper extremities in a healthy 40 year old (with presumably no chronic pain history etc) is idiotic IMO and isn’t treating the patient. Maybe you guys work with ****ty orthopedic surgeons with awful surgical technique, but the vast majority of distal radius fractures do fine with Tylenol, local at the site, and a little opioid thrown on top. Maybe you can convince me to block one arm (either the site that has a more complex fracture or if both sides look the same, maybe their non dominant arm). Both blocking both arms from the get-go is really silly.
If pain control is that big of an issue in PACU, you can always block them afterward. But the reality is I probably need to perform a rescue block on <5% of distal radius fractures (we do a ton and I can’t remember the last one I’ve needed to block in pacu). And the hassle of doing a block in PACU is worth at least giving them a shot at having a semi-functional arm for the day.