There are several Vermilion River public access spots that you can fish successfully from the access side of the river without wading. I am not sure how your recent surgery affects your ability to walk hills so I will try to give you some idea in the following list. Going from North to South.
1. Pull-off parking area on West side of Vermilion Road just South of Higbridge Road
This is a steep walk and often a little crowded because a lot of steelhead get caught
here. Not really a marked area - just look for cars parked there.
2. Parking area on Northeast corner of Vermilion Road and Jeruselem Road. Never
walked it but pretty sure it is same as above.
3. Just a little South of above, but North of Cooper Foster Road on West side of
Vermilion Road is Metroparks Parking area (clearly marked). Probably steep -
Never been down there either.
4. Mill Hollow/Bacon Woods Metropark - Flat and easy to walk and lots of access to a
long stretch of mostly shallow water. Timing and exact location are important to get
steelys there because of non-fishing people and long stretches between minimal
5. Peasley Road Metroparks Parking - Walk is definately more difficult than Mill Hollow
but lighter hill incline than further North spots. Good holes and plenty of fish.
6. Gore Orphanage Road - No hills and access to both sides of river from parking pull-
offs on both sides of bridge. This is Metroparks as well but less crowded, good holes
and plenty of fish. Walking trails are mostly very easy but it is not a groomed park
like Mill Hollow.
Disclaimer - Allthough I absolutely live to fish, Steelhead fishing, for me is a more passive affair than Walleye, perch, pike, Mahi, Redfish, Snook... I really only fish the Vermilion River for Steelys probably 15 times a year to catch maybe 30 or 40 fish and I keep maybe 4 to smoke. Just don't have much of a taste for trout. I am sure you can get better fish-catching info from the die-hard steelhead guys on this sight.