Table 1.
Patient Population Demographics.
| Age, Average (SD) |
Gender (Male, Female) |
BMI, Average (SD) |
Charlson, Average (SD) |
ASA, Average (SD) |
Smoker Status (Smoker, Nonsmoker) |
|
|---|---|---|---|---|---|---|
| Primary THA (control; n = 93) | 61 (14) | 35 (58) | 29 (7.3) | 0.5 (1.1) | 2.8 (0.5) | 7 (86) |
| All conversion THAs (excluding patients with history of PJI; n = 45) | 61 (17) | 17 (28) | 28.5 (6.4) | 1.4 (2.4) | 3 (0.5) | 10 (35) |
| All conversion THAs (including patients with history of PJI; n = 51)a | 61 (16) | 20 (31) | 28 (6.3) | 1.4 (2.3) | 3 (0.5) | 13 (38) |
| Conversion THA for failed femoral neck fracture fixation (n = 12) | 72 (11) | 2 (10) | 24.8 (4.7) | 2 (2.3) | 3.1 (0.3) | 2 (10) |
| Conversion THA for failed acetabular fracture fixation (n = 11) | 60 (17) | 5 (6) | 28.3 (4.4) | 1.3 (2.7) | 3 (0.6) | 3 (8) |
| Conversion THA for failed subtrochanteric, intertrochanteric, and proximal femur fracture fixation (n = 7)b | 73 (11) | 3 (4) | 28.4 (9.4) | 1.3 (1.3) | 3.1 (0.7) | 2 (5) |
| Conversion THA for other causes (AVN, developmental hip dysplasia, or SCFE; n = 12)c | 46 (13) | 4 (8) | 32.1 (6) | 0.5 (0.8) | 2.8 (0.5) | 1 (11) |
| Conversion THA for patients with history of hip joint infection (pji + history of resection; n = 9)d | 57 (8) | 5 (4) | 26.1 (6) | 1.9 (3.6) | 3.1 (0.3) | 5 (4) |
| Conversion THA for failed femur-related fracture fixation (n = 19)e | 72 (11) | 5 (14) | 26.1 (6.8) | 1.7 (1.9) | 3.1 (0.5) | 4 (15) |
| Conversion THA for all failed fracture fixations (n = 30)f | 68 (14) | 11 (19) | 26.9 (6) | 1.6 (2.2) | 3.1 (0.5) | 7 (23) |
a
Conversion THA patients with history of PJI (n = 6).
b
Subtrochanteric fracture (n = 2), intertrochanteric fracture (n = 2), and proximal femur fracture (n = 3).
c
SCFE (n = 6), developmental hip dysplasia (n = 3), and AVN (n = 3).
d
Conversion THA patients with history of PJI (n = 6) and history of resection (n = 3).
e
Femoral neck fracture (n = 12), subtrochanteric fracture (n = 2), intertrochanteric fracture (n = 2), and proximal femur fracture (n = 3).
f
Acetabular fracture (n = 11), femoral neck fracture (n = 12), subtrochanteric fracture (n = 2), intertrochanteric fracture (n = 2), and proximal femur fracture (n = 3).