J Korean Fract Soc.  2024 Apr;37(2):95-101. 10.12671/jkfs.2024.37.2.95.

Comparison of the Radiological Outcomes of an Anatomical Quadrilateral Surface Plate with a Pelvic Reconstruction Plate in Acetabulum Fractures

• Yoon SH
• Park HG
• Lee DU

• KMID: 2555583
• DOI: http://doi.org/10.12671/jkfs.2024.37.2.95

Abstract

Purpose
This study compared the radiological outcomes of fixation using an anatomical quadrilateral surface plate with those using a traditional pelvic reconstruction plate for fractures involving the quadrilateral surface or superomedial wall of the acetabulum.
Materials and Methods
From 2015 to 2022, 47 patients who met the inclusion and exclusion criteria were analyzed retrospectively. Internal fixation of an acetabular fracture was achieved with a pelvic reconstruction plate (n=28) or an anatomical quadrilateral surface plate (n=19). The ability to achieve immediate postoperative anatomical reduction and the long-term outcomes were assessed by confirming the arthritic changes. Immediate postoperative reduction quality and long-term radiological outcomes for post-traumatic arthritis were assessed using the Matta scoring system on standard radiographs.
Results
The assessment of immediate postoperative reduction in the pelvic reconstruction plate group was satisfactory in 16 patients (57.1%) and unsatisfactory in 12 patients (42.9%). In the anatomical quadrilateral surface plate group, the results were satisfactory in 16 patients (84.2%) and unsatisfactory in 3 patients (15.8%). When evaluating over an extended follow-up period in the pelvic reconstruction plate group, 19 patients (67.9%) demonstrated satisfactory, while 9 patients (32.1%) had unsatisfactory outcomes. In the anatomical quadrilateral surface plate group, 12 patients (63.2%) achieved satisfactory, and 7 patients (36.8%) had unsatisfactory outcomes. The immediate postoperative reduction quality was superior in the anatomical quadrilateral surface plate group (p=0.03). Comparing longterm results, the anatomical quadrilateral surface plate group did not have statistically more favorable outcomes (p=0.49).
Conclusion
In this study, the anatomical quadrilateral surface plate achieved sufficiently good radiological results without significant difference from the existing pelvic reconstruction plate. It was concluded that it is a useful option that can replace the existing metal plate in the selection of surgery for acetabular fractures.

Keyword

Acetabulum; Fractures; Fracture fixation