I had a laceration across my shin bone which was sutured with staples and I think one of them stuck into the bone and now the skin seems stuck to the bone. If I pull up and down on my calf the skin at the cut stays in place while the skin around it will move 1/2 inch or so and skin around cut fills with puss. The cut was 23 days ago, 2 inch, had staples removed after 10 days, doc had no comment. My ankle was also injured so I wasn't walking much and when I felt pain from walking thought it was the ankle but as it got better noticed pulling feeling from cut.

http://skimmy.net/images/Shin_Scar.jpg