Isolated posterior stabilization of the pelvic ring in type III/IV fragility fractures of the pelvis are beneficial compared to 360° antero-posterior surgical approaches. A dual-center cohort analysis

Background: Fragility fractures of the pelvis (FFP) in elderly patients are an increasing concern due to their association with osteoporosis and the aging population. These fractures significantly affect patients' mobility and quality of life. This study evaluates different surgical techniques in patients suffering from FFP to provide standardized recommendations for treatment strategies. In addition, we compared therapeutic concepts and their outcome between two major trauma centers in Germany.

Methods: We conducted a retrospective analysis of 882 patients aged over 65 years who suffered from FFP between 2003 and 2020 at a level I and level III trauma center in a german metropolis. Fractures were classified according to Rommens and Hofmann. Data collection included patient demographics, fracture type, treatment strategy, and length of hospital stay.

Results: FFP I fractures were predominantly treated conservatively at both centers. Significant variability was noted in the treatment of type II and III fractures, with level III trauma center having a higher surgical intervention rate for FFP II in 27.6 % compared to the level I trauma center in 9.9 % of the cases. The most common procedure at both hospitals was the stabilization of the posterior pelvic ring. Patients who underwent less invasive posterior-only stabilization had shorter length of hospital stay than those who received combined anterior and posterior stabilization.

Conclusions: The study reveals substantial differences in the treatment approaches for FFP between two major trauma centers. Less invasive surgical methods, particularly posterior-only stabilization, are associated with shorter hospital stays and potentially better outcomes for elderly patients with unstable FFP.

Clinical relevance: This study underscores the importance of minimally invasive surgical techniques in managing FFP in elderly patients, highlighting their potential to reduce the length of hospital stay and improve recovery.