This article is more than 5 years old. Information may no longer be current.
Weight gain after THA may be based on age, preoperative weight loss
Age and weight loss before total hip arthroplasty influenced postoperative weight gain in this study.
“Our study found that preoperative weight loss prior to THA [total hip arthroplasty] surgery and age less than 60 years are independent risk factors for post-surgical weight gain,” Daniel L. Riddle, PhD, and colleagues wrote in the study. “Intentional weight loss is known to frequently lead to subsequent weight gain.”
For every kilogram of weight loss prior to THA, patients had a 12% increased risk of clinically important weight gain within 5 years of THA, according to the abstract.
Riddle and colleagues reported that any arthroplasty performed in addition to THA in the 5-year follow-up period also increased the subsequent risk of clinically important weight gain.
Among the study limitations the researchers cited were that more than 40% of THA patients and 30% of controls were lost to follow-up. Therefore, while they suggested an association of clinically important weight gain with THA, results could differ in other regions of the United States or countries.
Disclosure: Riddle has no relevant financial disclosures.