Takeaway
A high body mass index (BMI) is not associated with higher postoperative pain; however, serum lactate dehydrogenase (LDH) levels may be associated with increased risk of postoperative pain.
Why this matters
Obesity is associated with increased general pain; however, it is unknown what effect obesity has on postoperative pain.
Understanding the association between obesity and postoperative pain may lead to improved clinical outcomes.