Table 3.
Patient demographics with regard to age, BMI, sex, side of surgery, and preoperative functioning
| Variable | Liposomal bupivacaine PAI | Morphine spinal | Ropivacaine PAI | p value |
|---|---|---|---|---|
| Mean (SD) | ||||
| Age | 69 (9) | 69 (8) | 69 (9) | 0.976 |
| BMI | 34 (8) | 34 (6) | 34 (8) | 0.808 |
| Operating room time (minutes) | 74 (20) | 74 (22) | 64 (26) | 0.076 |
| Preoperative ROM (degrees) | 108 (14) | 109 (14) | 112 (11) | 0.496 |
| Preoperative Knee Society functional score | 46 (14) | 48 (12) | 51 (15) | 0.241 |
| Preoperative Knee Society total score | 35 (15) | 33 (19) | 38 (18) | 0.514 |
| Number | ||||
|---|---|---|---|---|
| Female | 29 (73%) | 25 (61%) | 26 (68%) | 0.534 |
| Male | 11 (28%) | 16 (39%) | 12 (32%) | |
| TKA on left side | 24 (60%) | 22 (54%) | 18 (47%) | 0.535 |
| TKA on right side | 16 (40%) | 19 (46%) | 20 (53%) | |
| Preoperative opioid use (yes) | 15 (38%) | 16 (39%) | 9 (24%) | 0.288 |
PAI = periarticular injection; BMI = body mass index.