The Association between Acetabulum Fractures and Subsequent Coxarthrosis in a Cohort of 77 Patients-A Retrospective Analysis of Predictors for Secondary Hip Osteoarthritis

OBJECTIVE

the aim of this study was to document the occurrence of THA after acetabulum surgery and examine the factors that predict its occurrence.

METHODS

This study included 77 consecutive patients who were admitted for acetabulum fracture surgery between 2012 and 2019. The inclusion criteria were acetabular fractures and indications for operative management. The exclusion criteria were acetabular fractures treated non-operatively, fractures requiring primary THA, and periprosthetic acetabular fractures. Data concerning demographics, date of injury, date of surgery, surgical approach, stabilization, and further reconstructive surgery were collected retrospectively. The number of patients who underwent THA and their risk factors were recorded. The minimum follow-up for each patient was 2 years of observation. A total of 77 patients with a mean age of 53 years were included.

RESULTS

At a mean follow-up of 2 years, THA was performed in 16 (20.8%) patients due to post-traumatic arthritis. An analysis of the surgical approaches showed that the Kocher-Langenbeck approach increased the risk of THA nearly 12 times compared with the ilioinguinal approach (p = 0.016). Furthermore, the duration of the waiting period for surgery significantly impacted the occurrence of THA, with each additional day leading to an 89% increase in the risk of prosthesis usage (p = 0.001).

CONCLUSIONS

This study suggests that acetabular fractures may lead to post-traumatic hip osteoarthritis. The surgical approach and the waiting time for surgery are potential factors that may predict secondary hip osteoarthritis and the need for subsequent THA. However, further investigations should be performed to establish predictors for secondary hip osteoarthritis, and especially to determine the impact of the surgical approach.

Impact of COVID-19 pandemic outbreak on pelvic trauma surgical management

The aim of this study was to investigate the impact of the COVID-19 pandemic on pelvic trauma surgery in Poland. This study comprises 132 consecutive patients admitted for pelvic fracture surgery from 2019 to 2022, separating them into 2 groups; pre-COVID (1 year before the outbreak of pandemic - 2019) and COVID period (in Poland 2020-2022). The data was collected respectively in a single trauma center. Demographic data was collected, additionally, the type of fracture according to Young-Burgess and Letournel-Judet classification system, date of the injury and surgery, the surgical approach and stabilization methods, mechanism of trauma, concomitant injuries, body mass index (BMI), blood transfusions, number of days spent in the hospital, and surgery duration. Patients during the pandemic had statistically significantly shorter duration of hospital stay, and lesser amount of blood units transfused comparing to the non- pandemic group, 4.50 days vs. 6.90 days (p < 0.001) and 1.20 units vs. 1.40 units (p = 0.0401) respectively. Patients with acetabulum fractures required more blood transfusion units (p < 0.0001), comparing to those with pelvic ring injuries. Moreover, the acetabulum fractures were more time demanding comparing to pelvic ring injury (151 min vs. 128 min, respectively) (p < 0.0001) as well as length of hospital stay was longer (5.18 days, 3.85 days (respectively) (p = 0.042). During the COVID-19 period, comparing patients with acetabulum fractures to those with pelvic ring injuries, they required more blood transfusion units, the acetabulum fractures were more time demanding with increased days of hospitalization. Additionally, patients during the COVID-19 period remained hospitalized for a shorter period of time and received lesser amount of blood transfusions with pelvic ring injuries.