• Publications
  • Influence
Influence of component positions on dislocation: computed tomographic evaluations in a consecutive series of total hip arthroplasty.
Component positions in a consecutive series of total hip arthroplasty through a posterolateral approach without capsular and external rotator repair, using the same prosthesis type, head size, andExpand
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3D reconstruction of a femoral shape using a parametric model and two 2D fluoroscopic images
tl;dr
This paper proposes a method to estimate a patient-specific 3D shape of a femur from only two fluoroscopic images using a parametric femoral model. Expand
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  • Open Access
Tailor‐made surgical guide based on rapid prototyping technique for cup insertion in total hip arthroplasty
A surgical guide made by the rapid prototyping (RP) technique for cup insertion in total hip arthroplasty might be useful to avoid malalignment of the cup, which indicates postoperative complications.
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Fluoroscopic Bone Fragment Tracking for Surgical Navigation in Femur Fracture Reduction by Incorporating Optical Tracking of Hip Joint Rotation Center
tl;dr
We combine 2-D and 3-D image registration from single-view fluoroscopy with tracking of the head center position of the proximal femoral fragment to improve the accuracy of fluoroscopic registration without the need for repeated manual adjustment of the C-arm as required in stereo-view registrations. Expand
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Computer-Assisted Preoperative Planning for Reduction of Proximal Femoral Fracture Using 3-D-CT Data
tl;dr
This paper describes procedures for repositioning calculations of fractured bone fragments using 3-D-computed tomography (CT), aimed at preoperative planning for computer-guided fracture reduction of the proximal femur. Expand
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Five-year results of metal-on-metal resurfacing arthroplasty in Asian patients.
Clinical results of 50 metal-on-metal resurfacing arthroplasties in 45 Japanese patients were evaluated to a minimum follow-up of 5 years. The predominant diagnosis was developmental dysplasia orExpand
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Tailor-made Surgical Guide Reduces Incidence of Outliers of Cup Placement
Malalignment of the cup in total hip arthroplasty (THA) increases the risks of postoperative complications such as neck cup impingement, dislocation, and wear. We asked whether a tailor-made surgicalExpand
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Tumor-Forming Idiopathic Retroperitoneal Fibrosis: Report of a Case
Idiopathic retroperitoneal fibrosis (IRF) is characterized by the progressive proliferation of connective tissue, but it rarely results in the formation of a mass. Herein, we report a rare case ofExpand
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Available range analysis of laser guidance system and its application to monolithic integration with optical tracker
tl;dr
We describe feasibility analysis of the laser guidance alignment procedure for linear surgical tools by directly drawing two laser-beam lines onto the cylindrical tool surface using the result of available range analysis. Expand
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Patient-specific femoral shape estimation using a parametric model and two 2D fluoroscopic images
In medical diagnostic imaging, the X-ray CT scanner and the MRI system have been widely used to examine 3D shapes and internal structures of living organisms and bones. However, these apparatuses areExpand
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  • Open Access