Table 1

Demographic data and use of technology-assisted surgery in patients undergoing unilateral TKA

Technology-assisted surgeryConventional surgeryTotal
Mean age (SD) in years68.5 (9.0)69.1 (9.2)69.0 (9.1)
Sex (proportion male)43.3%42.0%42.4%
ASA class* (proportion)
 15.6%5.2%5.4%
 253.8%54.5%54.2%
 339.4%39.1%39.3%
 41.2%1.2%1.2%
 50.0%0.0%0.0%
Mean BMI† (SD)32.0 (14.2)32.3 (17.1)32.2 (15.8)
Procedures170 496411 322581 818
  • *ASA class was available for 293 624 procedures.

  • †BMI was available for 213 259 procedures.

  • ASA, American Society of Anesthesiologists; BMI, body mass index; TKA, total knee arthroplasty.