The sutures from the threadlift become encased in a collagen layer so they essentially become part of the body over time. When a facelift is performed, the dissection is often performed in a different plane than where the threads are placed, so there should be no interaction. If they are encountered during a facelift then they can be avoided easily. Either way, it won't affect the outcome of either the facelift or the previous threadlift.
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