The Kaplan-Meier survival estimates for comparing patients with morbid obesity with those without obesity. (A) The estimated survival free of subsequent revision was 81% (95% CI, 70%–92%) for the patients in the morbid obesity group and 93% (95% CI, 86%–100%) for patients in the nonmorbid obesity group at 10 years (p = 0.02). (B) The estimated survival free of reoperation was 71% (95% CI, 59%–83%) for the patients in the morbid obesity group and 85% (95% CI, 75%–95%) for patients in the nonmorbid obesity group at 10 years (p = 0.009). (C) The estimated survival free of periprosthetic joint infection was 87% (95% CI, 77%–97%) for patients in the morbid obesity group and 100% for patients in the nonmorbid obesity group at 10 years (p = 0.04).