TABLE 1.
Demographic data and preoperative radiographic aberrations in the RA‐TKA and CM‐TKA groups
| Parameter | RA‐TKA (n = 37) | CM‐TKA (n = 35) | Statistical value | p value |
|---|---|---|---|---|
| Age (years) | 64.5 (5.3) | 63.4 (7.2) | t = 0.807 | 0.422 a |
| Number of males/females (n, %) | χ2 = 0.908 | 0.341 b | ||
| Males | 11 (29.7) | 7 (20) | ||
| Females | 26 (70.3) | 28 (80) | ||
| BMI (kg/m2) | 26.2 (3.8) | 26.4 (3.1) | t = −0.286 | 0.776 a |
| ASA class (n, %) | 0.671 c | |||
| I | 1 (2.7) | 1 (2.8) | ||
| II | 35 (94.5) | 31 (88.5) | ||
| III | 1 (2.7) | 3 (8.5) | ||
| Operative side (n, %) | χ2 = 0.878 | 0.349 b | ||
| Left | 21 (56.8) | 16 (45.7) | ||
| Right | 16 (43.2) | 19 (54.3) | ||
| HKA angle (°) | 171.0 (4.0) | 171.0 (4.0) | t = 0.041 | 0.968 a |
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; CM‐TKA, conventional manual total knee arthroplasty; HKA, hip‐knee‐ankle; RA‐TKA, robot‐assisted total knee arthroplasty
a
Student's t‐test
b
Pearson chi‐square test
c
Fisher's exact test.