Table 3.

Type of Revision, Stratified by Morbidly Obese, Obese, and Not Obese

Factor	Not Obese (n = 465,968)	Obese (n = 70,953)	Morbidly Obese (n = 68,682)	P
All implants	173,500 (37.23%)	25,816 (36.38%)	22,884 (33.32%)	<0.0001
Arthrotomy for removal of prosthesis	61,474 (13.19%)	9,864 (13.90%)	11,459 (16.68%)	<0.0001
Other, not otherwise specified	27,883 (5.98%)	3,384 (4.77%)	3,217 (4.68%)	<0.0001
Tibial insert	73,073 (15.68%)	11,302 (15.93%)	11,788 (17.16%)	0.0003
Tibial implant	96,694 (20.75%)	15,839 (22.32%)	15,452 (22.50%)	<0.0001
Patellar	33,090 (7.10%)	4,560 (6.43%)	4,317 (6.29%)	0.0002
Femoral implant	70,509 (15.13%)	11,462 (16.15%)	10,472 (15.25%)	0.0122