A couple different options depending on their assessed risk level and if they’ve done anything dangerous with it recently. This can also change depending on the types of units avaliable at that facility (because it’s relatively easy to move units, almost impossible to switch facilities).

The first and most likely option is that they go to a general psych unit (as opposed to acute) where the environment is still pretty highly controlled, but not nearly as much. The patient is more likely to qualify for this kind of unit than average because they have a mobility concern. In particular, most standard prosthetic legs actually do not allow a person to run efficiently! There’s a reason most prosthetics you see in the paraolympics have that weird scoop shape; it’s difficult to mimic the springiness of an organic human leg. Running speed is actually pretty critical to a violence assessment since the first step we teach to try in any violent situation is running away! If they can’t catch me, my problem has been solved. I’m also very hard to corner due to my increased situational awareness / psych nurse reflexes / PTSD. This patient is also going to be on a unit with other less acute patients, so while the risk isn’t eliminated, I’m less worried about another patient stealing it to club me over the head with. It’s also very likely that if another patient did attempt to steal it, the patient would immediately notice and immediately notify us (probably by yelling “HEY DON’T TAKE MY LEG!”).

The ideal solution is a medical-psych hybrid unit which is fairly rare, but specially designed for situations like this. This is for a patient with a similar risk level to a general unit its just hybrid units are usually much rarer. The equipment is specifically designed to be a hybrid between medical equipment and psych equipment. The beds in particular are designed for mobility support including powered raising and lowering of the full bed and of the head and knees separately. But to support psychiatric safety, the bed rails do not have holes or gaps that are easy to tie a rope through to hang yourself, and the cords for the power and call bell are extremely short. In addition the powered components lock with either a key or a passcode to prevent misuse or tampering by a confused or very determined patient.

The worst but sometimes only solution if they’re very determined to be violent is to just put them on the acute unit and / or take the leg. If I have to take the leg I will try to provide another mobility aid that would make a less efficient weapon. A walker is a reduced risk but not ideal, it’s bulky and difficult to raise over the head (especially on one leg), but light enough and large enough to do some damage (and I’m still worried about other patients using it) A wheelchair has the advantage of being heavier and bulkier, but the same other risks.

I could steal a rolling recliner from a medical unit to use as a wheelchair pushed by a staff member. It would be even heavier, but could still be lifted by a patient experiencing drug related or hysterical (/adrenaline) super-strength, or a professional athlete or other person who is naturally extremely strong (obese patients often have poor cardio, but are actually typically pretty strong; it takes a lot of muscle to move that weight all day every day). That kind of chair also likely has easy handholds for staff members to use to push it around, and this is actually a risk compared to regular weighted psych unit furniture. Part of what keeps those safe for a patient who is strong enough is that they’re designed to be difficult to grip with your fingers and have to be pushed along the floor to move.

A medical units recliner also poses a ligature risk and has many little components that you can tie something around to hang yourself (note: the risk is still present if the attachment point is low to the ground because you can combine it with throwing the rope over a high object like a door or tall furniture). Some are also powered / motorized and have a long electrical cord. So for that to be a solution the patient would have to be monitored 1:1 constantly the same as a high suicide risk patient.

The final and worst solution is to just take the leg and start getting creative. I’m most likely to do this if the patient has swung it on me or a direct coworker during their admission with us or a recent admission with us, or is well known to us for doing so. I may also do it if the ER / other transferring facility is emphatic that the patient was doing it to them. I miiight give it back eventually but tbh if I have to take it they’re probably not getting it back until they’re wheeled off the unit for discharge.

If I had to do this I could likely use those weighted and difficult to grasp psych ward chairs to make some strategic handholds at least in the patient’s own room, and especially along the path from the bed to the bathroom. They would likely also have a 1:1 sitter anyway to assist with mobility / balance, unless they could be absolutely trusted to hit the call button / call out for help (unlikely if they’re that uncooperative). They might have TWO sitters / 2:1 observation if they’re that difficult to manage but I’ve worked precious few facilities willing to pay to staff for that. I could also perhaps give the 1:1 sitter a mobility aid that they can use with the patient during active transport then fold up and keep with them when not actively being used. I would also make sure that any sitting chairs in the room have arms (I do this for all high fall risk patients) because chairs with arms are easier for a patient with trouble mobilizing to raise and lower from in terms of both strength and balance. Also for high falls risk patients I’m gonna make absolutely certain that they are wearing a grippy sock as much as I can talk them into, and possibly put rubber grippy mats in the room.

A lot of these solutions aren’t ideal, but ultimately I’m gonna do the best I can and cross my fingers that I picked right. Experience and attention to detail can go pretty far but nobody in this world is perfect or psychic.