Five years ago an x-ray showed early signs of arthritis in my sound thumb. I did not worry about it until this thumb started to ache. I have overused my sound hand for 11 years and need it to last for another 20 years. Below are examples of joint protection principles for the thumbs of stroke survivors. I had to modify these principles which were written for two-handed people with arthritis.
1. Use Stronger Joints. Pouring from a full milk container forces me to squeeze the sides of the container tightly so it will not slip out of my hand. Squeezing tightly makes my thumb ache. So I pour milk two-handed. The arrow is pointing at my hemiplegic (paralyzed) hand. The muscles of my hemiplegic shoulder, elbow, and wrist are doing the heavy lifting while my sound hand makes sure the spout is aimed correctly. I appreciate not feeling pain every morning when I prepare cereal for breakfast.
rubber finger cot
used for counting money. Greater traction means my thumb can pinch less forcefully.
I cannot avoid using my sound thumb to open the top of a sock to get it on my foot. The photo on the left shows my thumb and index finger stretched far apart. This makes my thumb ache. Now I open the sock barely enough to get the sock over my toes. Other fingers do the hard work of pulling the sock up the rest of the way.
3. Avoid Static Positions. Holding a book for a long time with my sound hand makes my thumb ache. So I place my Actto bookrest on a laptop desk covered with non-slip shelf liner. An arrow in the photo points at a clear colored tab that adjusts the angle (i.e. more vertical or more horizontal). With the bookrest sitting on my laptop desk I can reach behind and easily release and reclamp this tab with one hand.
The photo on the right has an arrow pointing at a clear colored plastic arm that holds the book open. There is enough friction to fight the weight of the open book but I can easily reposition the plastic arms (e.g. far out for a big book and close in for a thin book). I have loved to read all my life so I am glad an assistive device lets me enjoy this activity without pain.