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Table 2 Prognosis and outcome of patients undergoing THA

From: Salvage total hip arthroplasty after failed internal fixation for proximal femur and acetabular fractures

 

THA after fixation failure (n = 105)

Primary THA (n = 210)

p value

Operative time (minute)

132.5 (51.4)

87.6 (34.3)

< 0.001*

Hemoglobin level

 Preoperative

12.5 (1.8)

12.8 (1.9)

0.159

 Postoperative

10.3 (1.4)

11.1 (1.6)

< 0.001*

Drop in hemoglobin level

2.2 (1.4)

1.7 (1.2)

0.002*

Blood transfusion

14 (13.3%)

24 (11.4%)

0.625

Amount of blood transfusion (unit)

0.63 (3.1)

0.52 (2.9)

0.754

Postoperative day to ambulate

2.1 (0.9)

1.7 (1.0)

0.001*

Length of stay (day)

7.3 (1.3)

7.1 (2.3)

0.429

  1. Operative time, hemoglobin level, drop in hemoglobin level, postoperative day to ambulate, amount of blood transfusion, and length of stay were expressed as the mean (standard deviation)
  2. Blood transfusion was expressed as a number (percentage)
  3. Postoperative day to ambulate was defined as walking with a walker for at least 10 m without others' assistance
  4. Unpaired t test for operative time, hemoglobin level, drop in hemoglobin level, postoperative day to ambulate, amount of blood transfusion, and length of stay
  5. Fisher’s test for blood transfusion
  6. *p < 0.05