Table 4.
90-day postoperative, intraoperative, and inpatient events of patients with uncemented vs cemented primary total knee arthroplasty.
| 90-day postoperative events | ||||
|---|---|---|---|---|
| Event | n (%) |
P value | ||
| Uncemented group | Cemented group | Total | ||
| Emergency department visit | 193 (10.6) | 1739 (10.3) | 1932 (10.4) | .6855b |
| Readmission | 48 (2.6) | 671 (4.0) | 719 (3.9) | .0048b |
| Death | 0 (0.0) | 22 (0.1) | 22 (0.1) | .2652a |
| Deep vein thrombosis | 16 (0.9) | 156 (0.9) | 172 (0.9) | .8488b |
| Pulmonary embolism | 8 (0.4) | 73 (0.4) | 81 (0.4) | .9647b |
| UTI | 0 (0.0) | 11 (0.1) | 11 (0.1) | .6154a |
| Dislocation | 1 (0.1) | 5 (0.0) | 6 (0.0) | .4590a |
| Fracture | 3 (0.2) | 36 (0.2) | 39 (0.2) | 1.0000a |
| Hematoma | 17 (0.9) | 175 (1.0) | 192 (1.0) | .6803b |
| Periprosthetic joint infection | 6 (0.3) | 56 (0.3) | 62 (0.3) | .9886b |
| Other return to OR | 59 (3.3) | 662 (3.9) | 721 (3.9) | .1526b |
| No 90-day postoperative events | 1496 (82.5) | 13,794 (82.0) | 15,290 (82.1) | .6010b |
| Intraoperative and inpatient events | ||||
| Intraoperative complication | ||||
| Fracture | 0 (0.0) | 25 (0.1) | 25 (0.1) | .1918b |
| Nerve injury | 3 (0.2) | 7 (0.0) | 10 (0.1) | .1032b |
| Tendon/Ligament injury | 1 (0.1) | 21 (0.1) | 22 (0.1) | .6446b |
| Other | 0 (0.0) | 8 (0.0) | 8 (0.0) | .7344b |
| None | 1809 (98.8) | 16,754 (99.6) | 18,563 (99.6) | .3855b |
| Venous thrombolic event during stay | 6 (0.3) | 53 (0.3) | 59 (0.3) | .9094b |
UTI, urinary tract infection; OR, operating room.
a
Fisher’s exact P value.
b
Chi-square P value.