Interobserver and intraobserver agreement for Letournel acetabular fracture classification system using 3-dimensional printed solid models

Figure 1 Computed tomography 3-dimensional reconstruction of an acetabular fracture.

Figure 2 Computed tomography image: an axial cross-section illustrating a right acetabular fracture. Circled in red is the anonymously assigned coding of the case. All identifying details have been omitted from the test.

Figure 3 Three-dimensional printed models of acetabular fractures.

Figure 4 Mean Kappa rate describing agreement between reviewers regarding the fracture classification and preferred surgical approach using computed tomography and 3-dimensional printed models (mean kappa in circle). A: The fracture classification; B: The preferred surgical approach. CT: Computed tomography; 3-D: Three-dimensional; Fx: Fracture.

Figure 5 Decision change regarding the surgical approach. A: The effect of reviewing the 3-dimensional model; B: Division of the subgroups demonstrates a change in surgical approach in double rates when the classification is also changed.