Radiographic Shape of Foot With Second Metatarsophalangeal Joint Dislocation Associated With Hallux Valgus.

Background: Second metatarsophalangeal (MTP) joint dislocation is associated with hallux valgus, and the treatment of complete dislocation can be difficult. The purpose of this study was to radiographically clarify the characteristic foot shape in the presence of second MTP joint dislocation.

Methods: Weight-bearing foot radiographs of the 268 patients (358 feet) with hallux valgus were examined.

Reconstructive Osteotomy for Ankle Malunion Improves Patient Satisfaction and Function.

Treatment of chronic symptoms caused by a malunion is a difficult problem in orthopedic surgery. We encountered a case of ankle malunion at our hospital about 1 year after the first operation. The patient had been unable to walk with weight-bearing but regained the ability to walk after reconstructive osteotomy of the fibula.

Standard growth of the foot arch in childhood and adolescence--derived from the measurement results of 10,155 children.

Background: The definition of flatfoot remains analytically vague. Toward the purpose of establishing the standard values of the foot length and arch height in childhood and adolescence, large-scale measurement and investigation of the foot arch were conducted using a three-dimensional foot-measuring device.

Methods: Measurements of foot structure were performed on 5311 boys and 4844 girls, for a total of 20,310 ft.

A novel and reproducible reference axis for distal tibial axial rotation.

We hypothesized that the tibial plafond revealed a novel anatomical reference axis associated with the axial alignment through an image processing technique. The plafond axis (PLA) was defined as the line connecting the midpoints of the medial and lateral plafond margin. In terms of intraclass correlation coefficient, the reproducibility to identify the PLA was not less than that to identify a conventional trans-malleolar axis (TMA).