piikki
Contributor
As other have mentioned, the weight of your equipment will be a real problem, however what I didn't see mentioned is that you do not have to be wearing your equipment when entering or exiting the water, which makes it no problem at all.
If you go boat diving in calm water, there's absolutely no reason you can't setup your gear and ask someone to lower it into the water, walk down the ladder and then put it on.
This is certainly a possibility but was kind of ignored a bit because the OP was asking whether SCUBA would be good as a rehab exercise. I am sure none of the no-crowd denies that SCUBA could be great rehab in the sense how rehab works when an activity makes you feel less pain, isolation, motivates you and/or is generally fun.
OP sure can try SCUBA and might very well enjoy it a great deal. I have a feeling a doc would tell him to wait a bit/and or enlist some help right now and his back might not improve greatly as a result. However, he might feel better and sometimes that is what counts.
My back improved substantially. I can't say if it was part of the natural healing process or if it was attributable to the diving. I can say with certainity it was great for my head after a trying experience.
I can bet money that if re-entry to diving does not re-injure my back it will improve it too! (I have been trying to tell this to my surgeon to bargain myself back to water with no luck this far).