Buttock implants, which are made of solid silicone implants that pose no risk of leak/rupture, are positioned above the sitting area so they will not receive the patients' weight every time they sit. As a result, they can only reshape the mid and top area of the butt cheeks. Nowadays, butt implants come in many sizes and shapes. But if your goal is to create an ILLUSION of wider hips, a round implant positioned more laterally might be the best choice. However, only a personal consultation with a board-certified plastic surgeon can really determine the most appropriate surgical approach. But in essence, remember that the technique mentioned above will only create an illusion of wider hips, but will not literally change the width of your hips. Good luck.