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Table 2 Inter- and intra-observer agreement of CT post-processing images and plain radiographs in kappa values

From: Evaluation of computed tomography post-processing images in postoperative assessment of Lisfranc injuries compared with plain radiographs

 

Plain radiographs

CT post-processing images

Inter-observer

Intra-observer

Inter-observer

Intra-observer

First reading

Second reading

Examiner 1

Examiner 2

First reading

Second reading

Examiner 1

Examiner 2

Diastasis between the base of the first and second metatarsals

0.547

0.473

0.647

0.786

0.969

0.935

0.968

0.898

Angulation of the metatarsals with the talus

0.473

0.647

0.737

0.552

0.907

0.909

0.874

0.901

Fracture fragment displacement

0.687

0.640

0.647

0.749

0.877

0.907

0.866

0.901

Screw exposure

0.487

0.661

0.661

0.490

0.856

0.890

0.843

0.928

Screw penetration

0.661

0.661

0.794

0.661

0.904

0.866

0.933

0.935