Obesity and total joint arthroplasty

 

The proposition of total knee arthroplasty (TKA) or total hip arthroplasty (THA) for a patient with morbid obesity — an individual with a body mass index (BMI) of 40 or greater — requires careful risk and benefit assessment by the orthopedic surgeon and the patient, according an orthopedic surgeon at Mayo Clinic's campus in Rochester, Minnesota.
                                                    

BMI is independently associated with increased risk of postoperative complications after THA and TKA, says Dr. Bedard. He also indicates obesity usually does not occur in a vacuum, without other health consequences. In fact, it can be a marker of poor overall wellness: Individuals who have a 40-plus BMI tend to be overall less healthy, and often have other medical problems that can increase their risk of complications.

Potential risks and challenges for performing a TKA or THA for a patient with morbid obesity include:

                                           

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