Communication between the proximal tibiofibular joint and knee via the subpopliteal recess: MR arthrography with histologic correlation and stratigraphic dissection.

Objective: The anatomy and functional importance of the proximal tibiofibular joint (TFJ) have rarely been emphasized. Specifically, the detailed anatomic basis and MRI findings of the communication between the proximal TFJ and the knee have not been defined in the literature. To investigate such communication, anatomic and histologic correlation with MRI findings in frozen specimens and dissections of embalmed specimens was used in the study.