Revision total hip arthroplasty combined with subtrochanteric shortening osteotomy: case report.

Revision surgery is one of the most difficult reconstructive challenges facing orthopaedic surgeons; therefore, many new techniques and implants are needed to ensure that such patient can be successfully treated. We report a 66-year old female with a chronic dislocated bipolar hip prosthesis. She underwent a revision total hip arthroplasty combined with V-shaped subtrochanteric shortening osteotomy.

Failure analysis of alumina on alumina total hip arthroplasty with a layered acetabular component: minimum ten-year follow-up study.

This prospective study reports the outcome of total hip arthroplasty (THA) performed in a consecutive series of patients using an alumina ceramic on a ceramic-layered component (Alumina-Bearing-Surface system). The cohort consisted of 270 hips in 229 patients. The study evaluated the clinical and radiological results over a mean follow-up of 11.

Prospective study of physical activity and quality of life in Japanese women undergoing total hip arthroplasty.

Background: Improvement in quality of life (QoL) in patients who went through total hip arthroplasty (THA) is well studied, while the number of studies on improvement in actual daily activity in THA patients is limited. The purpose of the study was (1) to describe the pre- to postoperative changes in physical activity (PA) levels, (2) compare PA levels with healthy controls, and (3) examine the association between PA levels and QoL in Japanese women undergoing THA.

Methods: PA was measured by pedometers, and QoL was assessed by the Short-Form 8 and the Oxford Hip Scale questionnaires.

Total hip arthroplasty combined with double-chevron subtrochanteric osteotomy.

Background: Subtrochanteric femoral shortening and corrective osteotomy are regarded as an integral part of total hip arthroplasty for a completely dislocated hip or severe deformity of the proximal femur. Alternative femoral osteotomy techniques-transverse, oblique, step-cut, and V-shaped, have been described.

Methods: In this series, we performed 22 cementless total hip arthroplasties combined with double-chevron subtrochanteric osteotomies between 1997 and 2002.

Foot pressure distribution in patients with gonarthrosis.

Background: When standing, leg alignment is controlled by supinating or pronating the subtalar joint, corresponding to valgus or varus deformity of the knee joint. However, in the gait cycle, it is not clear whether the abnormal alignment can be compensated.

Objective: The purpose of this study was to evaluate the control of leg alignment in the latter half of the gait cycle.