Abstract
Background: Approximately 10–25% of total hip replacement patients undergo a bilateral procedure. The purpose of this study was to compare selected parameters associated with the first and second hip arthroplasty in patients undergoing two-stage treatment due to bilateral hip osteoarthritis and establish the predictive factors for the second procedure. Methods: This study compared the data on bilateral total hip replacement surgeries conducted in the period between 2017 and 2021 (42 patients). The following parameters from the first and second procedure were compared: the prosthetic stem, head, and insert cup size; type of cup insert; duration of anesthesia; duration of hospitalization; and the number of complications. Results: The mean duration of hospital stay at the time of the first total hip arthroplasty was 5.83 days and 5.4 days during the second stay. The mean stem sizes used during the first and second total hip replacement procedures were 7.11 and 7.09, respectively. The mean sizes of endoprosthetic cups used at the first and second total hip replacement procedures were 52.64 and 53.04, respectively. There were no significant differences between the mean prosthetic head size at the first and second surgery. The cup type used during the first and second surgery showed no difference. The mean duration of anesthesia used during the first and second total hip replacement surgery was 108.09 min and 104.52 min, respectively. We recorded a mean of 0.07 complications per patient at the first surgery and 0.02 at the second surgery. Conclusions: Our study results showed symmetry duration of anesthesia, length of hospital stay, number of complications per patient, stem size, prosthetic head size, cup insert size, and cup insert type at the first and second surgery in patients with two-stage bilateral total hip arthroplasty. We observed a strong correlation between the stem sizes of the first and second hip endoprostheses. There was also a strong correlation between the cup sizes used during the first and second surgery.
Highlights
A total of 42 patients (16 females and 26 males) who had undergone two-stage bilateral total hip arthroplasty due to osteoarthritis in both hips were evaluated in this study
There were no significant differences between the mean prosthetic head size at the first and second surgery (p = 0.3334)
The two-stage bilateral total hip arthroplasty may be better than the one-stage procedure in that it affords an opportunity to establish the predictive factors for the second surgery [3,4]
Summary
Total hip arthroplasty patients constitute a large proportion of orthopedic patients [1,2], with 1–2 million hip and knee replacement procedures performed annually in the US [1,2]. An estimated 2.34% and 4.55% of the US population over the age of 50 has had a total hip and total knee replacement surgery, respectively [1]. Bilateral total hip replacement has been recommended in patients with osteoarthritis of both hip joints [3,4,5,6]. 10–25% of total hip replacement patients undergo a bilateral procedure [3,7,8,9]
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