Is it common for a doctor to detect capsular contracture by reviewing before pics of the patient?

It would be considered very uncommon for a doctor to be able to detect capsular contracture by looking at before pictures of the patient. If the contracture is very significant, it might be visible in a photo, but I would highly recommend that you see your plastic surgeon in person for an exam to determine whether or not you experiencing a capsular contracture.  Good look to you. 

A photograph can be the first step in deciding whether or not you have capsular contracture.  The implants may appear to be a different height and/or shape but this could be due to a natural asymmetry.  Your plastic surgeon will be able to tell once you are examined.  Along with the change in appearance, you might notice more of a "tightness" or increased firmness that was not felt before.Good luck!