In general ligaments are not "reattached" nor is any muscle repaired. Now, this can be somewhat of a definition issue. When I think "reattach", I would find the ligament and then suture it back to its broken component (such as a tendon in the hand). However, it is true the breast lifts that use breast tissue to help hold the breast (such as cross flaps, simple excision of central tissue) do help improve long term results by supporting the breast with deep tissue and scar formation. However, I wouldn't personally call this reattachment, although some ligaments will be repositioned. Most techniques in the literature where the entire breast is elevated and repositioned on the chest wall have not shown much better long term success than routine breast tissue based lifts. However, there are cutting edge absorbable meshes on the market now that allow the breast to be suspended, like an internal bra. When the mesh absorbs, it leaves behind tissue that is 4 times stronger than normal tissue. There is promise that this technique may give longer lasting results, although it is too new for long term data as of yet. Hope this helps. If you are still confused, be sure to speak to your plastic surgeon to understand exactly what they mean. If you don't feel comfortable with their explanation or feel like it is a sales pitch, go with your gut and find someone whom you trust.