Outcomes of the Extended Z-Cut Osteotomy for Correction of Adult Acquired Flatfoot Deformity.

Background: Medial displacement calcaneus tuberosity osteotomy and anterior process lengthening calcaneus osteotomy are traditional single-plane osteotomy techniques used in adult acquired flatfoot deformity reconstruction. More recently, 3-plane step-cut osteotomies were described for each of these and shown to offer improved rotational stability via the horizontal limb. However, a major technical challenge is achieving a sufficiently long horizontal limb to correct deformity through lengthening without losing bony apposition.

Medial Double Arthrodesis: Technique Guide and Tips.

The triple arthrodesis procedure remains the historical standard to treat complex hindfoot pathology. However, in recent data, the medial double arthrodesis has been documented to provide similar benefit with decreased complication rates compared with the triple arthrodesis. Therefore, increased interest in this procedure for the treatment of complex hindfoot pathologies has ensued.

Hydrostratigraphic modeling of a complex, glacial-drift aquifer system for importation into MODFLOW.

Deposition from at least three episodes of glaciation left a complex glacial-drift aquifer system in central Illinois. The deepest and largest of these aquifers, the Sankoty-Mahomet Aquifer, occupies the lower part of a buried bedrock valley and supplies water to communities throughout central Illinois. Thin, discontinuous aquifers are present within glacial drift overlying the Sankoty-Mahomet Aquifer.