Can both hips be replaced at the same time?

Yes, both hips can be replaced at the same time; this is called a bilateral hip replacement. Some advantages to the bilateral hip replacement include only having to go under general anesthetic once, a shorter overall hospital stay rather than two individual ones, and one rehabilitation. Drawbacks include that it can be harder to recover from two replacements at once, and some studies show a higher level of complications among patients with bilateral replacements.

Only your doctor can decide which is best for you.

Reference: 

Harlan C. Amstutz, MD, et al. Resurfacing THA for Patients Younger than 50 Years Old. In Clinical Orthopedics & Related Research. Vol. 460. Pp. 159-164.

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