Will Ultherapy work for minimal wrinkly skin above the elbows (antecubital)?

This is difficult to answer without pictures or an in-person consultation and evaluation. There are better options than Ultherapy for wrinkly elbow skin. Make sure you see an experienced physician provider for an in-person examination. Best wishes.

In general, yes, ultherapy will work to tighten skin on other parts of the body, there are protocols for these treatments that have been published and an experienced provider will be able to guide you through the treatment and expected results. 

Morpheus 8 is a non-invasive skin and soft tissue tightening treatment that is consistently amazing in our patients. We use the Morpheus to exact fractional induced RF into the skin or tissue in order to tighten collagen and stimulate contraction of the tissue. For acne scars, it is quite useful to build collagen in patients who have atrophic scars but is not very productive for ice-pick scars which require TCA Cross. For tissue tightening, Morpheus is ideal for the face and neck and we often combine it with CO2 laser or Ultherapy to further enhance results. Chemical peels and skin resurfacing should be done at least 5 to 7 days after, but can be performed earlier, depending on treatment severity. Avoid exfoliating skin treatments before Morpheus and expect a period of 2-4 weeks for skin contraction to set in.

Best,
Dr. Karamanoukian
Realself100 Surgeon

While Ultherapy® is great for lifting thicker skin and deeper tissue, radiofrequency skin tightening such as Viora® is best for tightening crinkly thin skin on the limbs. 

Thanks for your question.  It hard to tell without pictures but yes it will tighten skin but might need more than one treatment.  Please go to a certain provider for a consultation to see if you are a good candidate for ultherapy.
Best of luck