Patient Specific Component Alignment in Total Hip Arthroplasty
| Autor: | Andrew Shimmin, J Bare, Brad Miles, S McMahon, L Walter, Michael Solomon, Rob Molnar, Andrew Ellis, Catherine Stambouzou, E. Marel, Jim Pierrepont, Peter Bede O'connor |
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| Rok vydání: | 2016 |
| Předmět: |
Economics and Econometrics
Engineering medicine.medical_specialty Positioning system medicine.medical_treatment Total hip replacement Kinematics Hip replacement (animal) 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation lcsh:Orthopedic surgery Component (UML) Materials Chemistry Media Technology medicine Component alignment Instrumentation (computer programming) 030222 orthopedics business.industry Total Hip Arthroplasty Implant Positioning Forestry Arthroplasty lcsh:RD701-811 business 030217 neurology & neurosurgery Biomedical engineering |
| Zdroj: | Reconstructive Review, Vol 6, Iss 4 (2016) |
| ISSN: | 2331-2270 2331-2262 |
| DOI: | 10.15438/rr.6.4.148 |
| Popis: | Appropriate component alignment is critical for reducing instability, maximising bearing performance and restoring native anatomy after Total Hip Replacement (THR). Due to the large variation in patient kinematics between functional activities, current technologies lack definition of what constitutes correct target alignment. Analysis of a large series of symptomatic THR patients confirm that apparently well-orientated components on standard radiographs can still fail due to functional component malalignment. Evidently, previously defined “safe zones” are not appropriate for all patients as they don’t consider the dynamic behaviour of the hip joint.The Optimized Positioning SystemTM (OPSTM) comprises preoperative planning based on a patient-specific dynamic analysis, and patient-specific instrumentation for delivery of the target component alignment. This paper presents the application of OPSTM in three case studies. |
| Databáze: | OpenAIRE |
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