I think it depends what you are using the photos for.
For simple documentation? I would probably just use your smartphone or tablet as shooting technique (and common sense) makes a bigger difference than actual camera quality. Furthermore, if you have an EMR system in tablet form, I've always found it's best to directly take the photos with the tablet rather than risk losing the photos during transfer from an alternate device to the EMR
For publications? I do think a good DSLR makes a big difference in image quality. We used the Canon EOS Rebel T3 with ring flash in training but I'm sure there are newer better models since then.