CALCANEOCUBOID JOINT PRESSURES WITH LATERAL COLUMN LENGTHENING (EVANS) PROCEDURE

Calcaneocuboid joint pressures were evaluated with eight cadaver speci mens. Real-time pressures were recorded using a TekScan 4200 sensor pa d at lengths of 0, 5, and 10 mm in both unloaded and 350-newton loaded models. Recorded pressures exceeded 2.3 MPa in the loaded model at 10 mm lateral column lengthening. Although an acceptable procedure in th e pediatric population, application of the Evans lateral column length ening procedure for management of adult acquired flatfoot may generate excessive pressures leading to joint arthrosis. Lengthening by calcan eocuboid distraction arthrodesis may avoid this problem.