Abstract
Introduction
To date, the approach that prevails in the open reduction and internal fixation of crescent fracture-dislocations (CFD) remains unknown. This study aimed to compare the outcomes of CFD treated via the anterior or posterior approach.
Materials and methods
Data from 64 cases of CFDs openly reduced through an anterior (group A, n = 31) or a posterior (group B, n = 33) approach were retrospectively analyzed. Functional results, reduction quality, residual displacements in the axial and coronal planes, pelvic asymmetry deformity, and correlations between Day’s classification were compared. Complications and fracture union were also recorded. All patients were followed up for at least 12 months.
Results
The functional scores were similar between the two groups, and all fractures achieved good or excellent reduction postoperatively. In the coronal plane, the excellent/good ratio in group B was higher than in group A. The mean residual displacement in the coronal plane was significantly higher in group A than in group B, with group A showing greater displacement in both planes for Day I fractures and in the coronal plane for Day II fractures. The residual displacement in both planes for Day III fractures was comparable between the groups. The pelvic asymmetry deformity was equal between the two groups and among the different Day’s fracture types.
Conclusions
Open reduction and internal fixation of CFDs obtained satisfactory outcomes through an anterior or posterior approach. The posterior approach achieved a better sacroiliac joint reduction. The optimal indication for the posterior approach was a Day I fracture, followed by a Day II fracture. No correlation was found between the surgical approach and reduction quality in Day III fractures.
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Data availability
The data are available from the corresponding author on reasonable request.
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Ye, K., Tang, J., Shen, L. et al. Open reduction and internal fixation of crescent fracture-dislocation: anterior or posterior approach?. Arch Orthop Trauma Surg 144, 1269–1279 (2024). https://doi.org/10.1007/s00402-023-05185-2
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DOI: https://doi.org/10.1007/s00402-023-05185-2