What would be the consequences of the plastic surgery for missing finger and two joined fingers?

I was born without my pinky finger on my right hand and my middle finger and index finger are completly joined together. Generally, the wrist is a bit smaller on my right hand than on my left one which is completely okay. I would like to ask what would be the consequences of the surgery, would I be able to still use my right hand and move with it like I can with the left one? I am turning 18 next year and I amm thinking about surgery but I'm afraid of not moving my hand anymore.

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