Author/Authors :
Schroll Astolfi, Rodrigo Universidade Federal do Ceará, Fortaleza, CE, Brazil , de Paiva Bezerra Carrah, Marcio General Hospital of Fortaleza, Fortaleza, CE, Brazil , Farias Cordeiro, Guilherme General Hospital of Fortaleza, Fortaleza, CE, Brazil , Rodrigues Lopes, Jailson Boghos Boyadjan Clinic, Fortaleza, CE, Brazil , Joaquim Diógenes Teixeira, Manuel General Hospital of Fortaleza, Fortaleza, CE, Brazil , Alberto Dias Leite, José Universidade Federal do Ceará, Fortaleza, CE, Brazil
Abstract :
Objective: To implement one analysis method of the ankle bone
contour that could make a more precise ankle arthrodesis. Methods:
Twenty tomographies were submitted to 3D reconstruction.
Seven points of anatomic interest for ankle arthrodesis with the
three screws technique were marked with a triplannar marker.
The median of the position of markers was estimated, and the
union of the seven median points allow the construction of one
median ankle for that population. Using this median ankle, siz-
es and angles for the screws position were determined. Results:
Two median ankles were reconstructed, left and right. The position
of the screw passage were determined considering the anatomical
parameters. In the right ankle the lateral to medial screw should
enter 4.56 cm and 0.79 above and posterior to lateral malleolus, with
one inclination of 17.34° in relation to tibial longitudinal axis; and 0°
in relation to tibial axial plane. The position for the other two screws
is also described. Conclusion: Our article is the first to presents
one precise guide for ankle arthrodesis based on a populational
assessment. Level of evidence II, Diagnostic Studies
Keywords :
Foot , Ankle , Arthrodesis , Pre-Planning , 3D-Reconstruction , Joint Diseases
