LD flap or Lat dorsi flap complications 1 year on.

Hi there I have never posted on these sites before but am hoping that you can help. I lost my mum to breast cancer in 2005 after a long and valiant battle on her part and hoped never to experience this again. However just over 12 months ago my Mother in law was also diagnosed with breast cancer, however her prognosis is a great deal better. In June 2009 she underwent a LD flap or Lat dorsi flap surgery, however ever since she has experienced pain and discomfort in the breast, the doctor thinks it could be due to the size of the implant?. She describes it as a dragging feeling that is also painful, the pain seems to be located near in the corner of the breast near the cleavage. Just wondering if anyone has any similar experience.Any help much appreciated. Thanks so much in advance. Claire xx