Digital Roentgen Stereophotogrammetry : Development , Validation , and Clinical Application
نویسندگان
چکیده
Contents 1 General introduction 9 2 RSA in practical steps 19 3 RSA of the Mallory-Head femoral stem without attached markers 33 4 Roentgen stereophotogrammetric analysis of metal-backed hemispherical cups without attached markers 49 5 Fast and accurate automated measurements in digitised stereophotogrammetric radiographs 59 6 Digital automated RSA compared to manually operated RSA 75 7 Model-based roentgen stereophotogrammetry of orthopaedic implants 91 8 The effect of hydroxyapatite on the micromotion of total knee prostheses: A randomised, double-blind study 107 9 Micromotion of the Souter-Strathclyde total elbow prosthesis in patients with rheumatoid arthritis 125 10 General discussion, conclusions, and recommendations 141 Summary 155 Samenvatting 161 Appendix A: RSA in mathematical steps 167 Appendix B: RSA of metal-backed hemispherical cups without attached markers 175 Acknowledgements 177
منابع مشابه
The use of Roentgen stereophotogrammetry to study micromotion of orthopaedic implants
Roentgen stereophotogrammetry is the most accurate Roentgen technique for three-dimensional assessment of micromotion of orthopaedic implants. The reported accuracy of Roentgen Stereophotogrammetric Analysis (RSA) ranges between 0.05 and 0.5 mm for translations and between 0.15j and 1.15j for rotations. Because of the high accuracy of RSA, small patient groups are in general sufficient to study...
متن کاملDevelopment of a morphology-based modeling technique for tracking solid-body displacements: examining the reliability of a potential MRI-only approach for joint kinematics assessment
BACKGROUND Single or biplanar video radiography and Roentgen stereophotogrammetry (RSA) techniques used for the assessment of in-vivo joint kinematics involves application of ionizing radiation, which is a limitation for clinical research involving human subjects. To overcome this limitation, our long-term goal is to develop a magnetic resonance imaging (MRI)-only, three dimensional (3-D) model...
متن کاملUncalibrated X-Ray Stereo Reconstruction
We describe a novel application of uncalibrated stereo reconstruction to Roentgen Stereophotogrammetry Analysis (RSA). In RSA, stereo X-ray images are taken of a bone containing a prosthesis (e.g. a replacement knee) and a number of metal markers. The aim is to recover the relative position of the prosthesis and markers in 3D. Accuracy in previous RSA methods has been limited by two factors: ma...
متن کاملA single camera roentgen stereophotogrammetry method for static displacement analysis.
A new method to quantify motion or deformation of bony structures has been developed, since quantification is often difficult due to overlaying tissue, and the currently used roentgen stereophotogrammetry method requires significant investment. In our method, a single stationary roentgen source is used, as opposed to the usual two, which, in combination with a fixed radiogram cassette holder, f...
متن کامل