From 2018–2021, our institution performed 1077 hip and knee arthroplasties, of which 215 patients (20%) had preexisting renal impairment. One hundred patients out of 1077 hip and knee arthroplasties (9.3%) had postoperative AKI. Eight hundred eighty-eight patients (82.5%) were prescribed perioperative celecoxib as part of the standard multimodal analgesic protocol, while 189 patients (17.5%) were not prescribed perioperative celecoxib as part of the standard multimodal analgesic protocol (Fig. 1).
For those 888 patients with perioperative celecoxib, the percentage of preexisting renal impairment was 14.5%, while the percentage without preexisting renal impairment (normal renal function) was 85.5% (Fig. 1). For those 189 patients not taking perioperative celecoxib, the percentage of preexisting renal impairment was 45.5%, while the percentage without preexisting renal impairment (normal renal function) was 54.5% (Fig. 1).
Although there were significant differences in the type of arthroplasties performed for patients receiving perioperative celecoxib with preexisting renal impairment and normal renal function, there were no statistically significant differences in ASA status and percentage of preoperative ACEIs and ARBs (Table 1). Although there were significant differences in age and body weight for patients not receiving perioperative celecoxib with preexisting renal impairment and normal renal function, there were no statistically significant differences in ASA status and percentage of preoperative ACEI and ARB (Table 1).
Variable
|
Preexisting renal impairment
|
Preexisting normal renal function
|
p value
|
Table 1
Patient Demographics, Type of Operations and Percentage of Patients Taking Preoperative Nephrotoxic Drugs - Angiotensin Converting Enzyme Inhibitors (ACEIs) and Angiotensin Receptor Blockers (ARBs)
With celecoxib (n = 888)
|
|
|
|
N
|
129
|
759
|
|
Age (years)
|
69.6 ± 10.9 (25–92)
|
68.7 ± 11.2 (17–97)
|
0.379
|
Sex (%)
|
|
|
|
F
|
61.2% (79/129)
|
65.3% (496/759)
|
0.366
|
M
|
38.82% (50/129)
|
34.7% (263/759)
|
|
Body weight (kg)
|
66.1 ± 14.5 (39.6–101)
|
66.6 ± 13.8 (23.1–126)
|
0.708
|
ASA status (%)
|
|
|
|
I
|
0.8%a (1/129)
|
9.9% (75/759)
|
0.937a
|
II
|
45.0% (58/129)
|
36.2% (275/759)
|
III
|
50.4% (65/129)
|
49.0% (372/759)
|
IV
|
3.9% (5/129)
|
4.9% (37/759)
|
Operation type (%)
|
|
|
|
Knee
|
82.9% (107/129)
|
69.7% (529/759)
|
0.002b
|
Hip
|
17.1% (22/129)
|
30.3% (230/759)
|
|
Preop ACEI/ARB (%)
|
|
|
|
Y
|
48.1% (62/129)
|
53.2% (404/759)
|
0.277
|
N
|
51.9% (67/129)
|
46.8% (355/759)
|
|
Without celecoxib (n = 189)
|
|
|
|
N
|
86
|
103
|
|
Age (years)
|
68.2 ± 10.5 (42–94)
|
71.8 ± 10.5 (42–92)
|
0.019b
|
Sex (%)
|
|
|
|
F
|
62.8% (54/86)
|
66.0% (68/103)
|
0.794
|
M
|
37.2% (32/86)
|
34.0% (35/103)
|
|
Body weight (kg)
|
69.4 ± 14.5 (36.9–120)
|
64.3 ± 14.0 (38–100.7)
|
0.015b
|
ASA status (%)
|
|
|
|
I
|
1.2% (1/86)
|
7.8% (8/103)
|
0.415a
|
II
|
39.5% (34/86)
|
38.8% (40/103)
|
III
|
51.2% (44/86)
|
46.6% (48/103)
|
IV
|
8.1% (7/86)
|
6.8% (7/103)
|
Operation type (%)
|
|
|
|
Knee
|
74.4% (64/86)
|
68.9% (71/103)
|
0.406
|
Hip
|
25.6% (22/86)
|
31.1% (32/103)
|
|
Preop ACEI/ARB (%)
|
|
|
|
Y
|
52.3% (45/86)
|
46.6% (48/103)
|
0.433
|
N
|
47.7% (41/86)
|
53.4% (55/103)
|
|
Values are the mean ± SD (range) or %(n) |
ap value of the Chi-square test for testing the percentage of patients classified as ASA I-II between the 2 groups. ASA status distributions: ASA I-II is comprised of ASA I and ASA II and ASA III-IV is comprised of ASA III and ASA IV for testing. |
bSignificant difference between the 2 groups, p value less than the 0.05 is considered statistically significant. |
For the 888 patients taking perioperative celecoxib, the incidence of postoperative AKI (rise in sCr of > 50% from baseline) was 5.6%, 5.5% and 1.8% from postoperative days 1–3, respectively (Table 2). For the 189 patients not taking perioperative celecoxib, the prevalence of postoperative AKI (rise in sCr of > 50% from baseline) was 4.8%, 5.5% and 5.9% from postoperative days 1–3, respectively (Table 2). All were statistically insignificant except on postoperative day 3, showing an even lower incidence for those taking celecoxib. The overall incidence of AKI during hospitalization in those taking perioperative celecoxib was 9.2%, while it was 9.5% in those not taking perioperative celecoxib. There was no statistically significant difference (Table 2). The odds ratio was 0.97 [95% CI: 0.57–1.65]. There was no association between perioperative celecoxib and postoperative AKI.
|
With celecoxib
|
Without celecoxib
|
|
Postoperative day
|
Percentage of postoperative AKI
|
P value
|
Table 2
Incidence of Postoperative AKI in Patients With and Without Perioperative Celecoxib
POD1 (n = 1073)
|
5.6% (50/886a)
|
4.8% (9/187a)
|
0.651
|
POD2 (n = 1035)
|
5.5% (47/852)
|
5.5% (10/183)
|
0.978
|
POD3 (n = 430)
|
1.8% (6/329)
|
5.9% (6/101)
|
0.039b
|
POD4 (n = 335)
|
1.2% (3/253)
|
2.4% (2/82)
|
0.599
|
POD5 (n = 175)
|
0.0% (0/128)
|
2.1% (1/47)
|
0.269
|
POD6 (n = 122)
|
0% (0/84)
|
0% (0/38)
|
1.000
|
Overall (n = 1077)
|
9.2% (82/888)
|
9.5% (18/189)
|
0.901
|
Proportion (in %) (number/total). |
a2 missing data entry. |
bSignificantly different in % of postoperative AKI between Celebrex taking and not taking at the 0.05 level. |
Patients taking celecoxib (888 patients) were further divided into groups with and without preexisting renal impairment (normal renal function), and the incidence of postoperative AKI was compared. The results for postoperative AKI are summarized in Table 3. The overall incidence of postoperative AKI for those with and without preexisting renal impairment was 9.3% and 9.2%, respectively (Fig. 1). This was not statistically significant. The duration for AKI was 4 days in both groups and peaked at postoperative day 2 in those with preexisting renal impairment and postoperative day 1 in those without preexisting renal impairment (Table 3). Most of the involved AKI cases were stage 1 for both groups of patients with and without preexisting renal impairment (Tables 4).
|
Overall
|
Preexisting renal impairment
|
Normal RFT
|
|
Postop day
|
Percentage of postoperative AKI
|
P value (preexisting vs. normal RFT)
|
Table 3
Incidence of Postoperative AKI in Patients Taking Celecoxib Peroperatively
POD1 (n = 886)
|
5.6% (50/886)
|
4.7% (6/129)
|
5.8% (44/757)
|
0.597
|
POD2 (n = 852)
|
5.5% (47/852)
|
7.1% (9/127)
|
5.2% (38/725)
|
0.401
|
POD3 (n = 329)
|
1.8% (6/329)
|
5.2% (3/58)
|
1.1% (3/271)
|
0.070
|
POD4 (n = 253)
|
1.2% (3/253)
|
2.0% (1/51)
|
1.0% (2/202)
|
0.493
|
POD5 (n = 128)
|
0.0% (0/128)
|
0% (0/35)
|
0% (0/93)
|
1.000
|
POD6 (n = 84)
|
0% (0/84)
|
0% (0/21)
|
0% (0/63)
|
1.000
|
Overall (n = 888)
|
9.2% (82/888)
|
9.3% (12/129)
|
9.2% (70/759)
|
0.977
|
Proportion (in %) of AKI (number/total). |
Table 4. Postoperative AKI in Different Stages (in % and (n)) in Patients Receiving Celecoxib Perioperatively and With Preexisting Renal Impairment and With Normal Renal Function
Patients not taking celecoxib (189 patients) were further divided into groups with and without preexisting renal impairment, and the incidence of postoperative AKI was compared. The results for postoperative AKI are summarized in Table 5. The overall incidence of postoperative AKI for those with and without preexisting renal impairment was 11.6% and 7.8%, respectively (Table 5). This was not statistically significant. For those with preexisting renal impairment, the duration of AKI was 5 days and peaked at postoperative day 2. For those without preexisting renal impairment, the duration of AKI was 3 days and peaked at postoperative day 1 (Table 5). All AKI cases involved were stage 1 for both groups of patients with and without preexisting renal impairment (Tables 6).
Table 5. Incidence of Postoperative AKI in Patients Not Taking Celecoxib Perioperatively
Postop day
|
Percentage of postop AKI
|
P value
(preexisting vs. normal RFT)
|
|
Overall
|
Preexisting renal impairment
|
Normal renal function
|
|
POD1 (n = 187)
|
4.8% (9/187)
|
2.4% (2/85)
|
6.9% (7/102)
|
0.186
|
POD2 (n = 183)
|
5.5% (10/183)
|
8.3% (7/84)
|
3.0% (3/99)
|
0.190
|
POD3 (n = 101)
|
5.9% (6/101)
|
7.1% (4/56)
|
4.4% (2/45)
|
0.690
|
POD4 (n = 82)
|
2.4% (2/82)
|
4.9% (2/41)
|
0% (0/41)
|
0.494
|
POD5 (n = 47)
|
2.1% (1/47)
|
3.8% (1/26)
|
0% (0/21)
|
1.000
|
POD6 (n = 38)
|
0% (0/38)
|
0% (0/19)
|
0% (0/19)
|
1.000
|
Overall (n = 189)
|
9.5% (18/189)
|
11.6% (10/86)
|
7.8% (8/103)
|
0.368
|
Value (in %) of AKI (number/total) |
Table 6. Postoperative AKI in Different Stages (in % and (n)) in Patients Not Receiving Celecoxib Perioperatively and With Preexisting Renal Impairment and With Normal Renal Function