I used to think all women could and should do orthopedics if they want to. I still think this is true, but after doing a rotation in it, I realize that there is a requirement for a lot of brute physical strenghth to do the job. I am a petite, but strong woman, and I honestly do not think I could reduce some of the fractures and dislocations manually on a 300 lb patient. The patients are just so much bigger than me, and as a student holding the leg up during an operation, I thought long and hard about this topic.
So, you definately can do it and I think if you really love it you should, but just be aware of the job demands and challenges you may face because it is a very psysical job sometimes.