'Nailable' Does Not Always Mean Reducible in Distal Femur Fractures: Arthroplasty Component and Nail Design Matter
| Autor: | Benjamin M, Braun, Jeremy A, Ross, Eric F, Swart |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Orthopedics. 46:35-38 |
| ISSN: | 1938-2367 0147-7447 |
| Popis: | Distal femur fractures above a total knee arthroplasty (TKA) are challenging. These fractures can be fixed with a retrograde intramedullary nail (rIMN), but the design of the femoral component of the TKA influences the starting point for an rIMN. We performed a biomechanical study to evaluate how different TKA components influence the starting point for an rIMN and how that can lead to a deformity in the sagittal plane. We simulated a distal femur fracture with three different arthroplasty components. We used three different implants to simulate fracture reduction and measured the resultant sagittal plane deformity. Low and moderate femoral component ratio (FCR) design components were able to maintain fracture alignment within 5° of anatomic. High FCR component (more posterior starting point) sagittal plane deformities of up to 15° were observed with both the straight and medium Herzog bend nails, which was statistically significant ( P P Orthopedics . 2023;46(1):35–38.] |
| Databáze: | OpenAIRE |
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