Matches in SemOpenAlex for { <https://semopenalex.org/work/W2600188825> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2600188825 endingPage "12" @default.
- W2600188825 startingPage "12" @default.
- W2600188825 abstract "Hip fractures constitute the most debilitating complication of osteoporosis with a steadily increasing incidence in an aging population. Intramedullary nailing of osteoporotic proximal femoral fractures can be challenging because of poor implant anchorage in the femoral head. Recently, cement augmentation of PFNA blades with Polymethylmethycrylate (PMMA) has shown promising results by enhancing the cutout resistance in proximal femoral fractures. The aim of this biomechanical study was to assess the impact of cement augmentation on the fixation strength of TFNA blades and screws within the femoral head, and compare its effect with head elements placed in a center or antero–posterior off–center positions. Eight groups were formed out of 96 polyurethane foam specimens with low density, simulating isolated femoral heads with severe osteoporotic bone. The specimens in each group were implanted with either non–augmented or PMMA–augmented TFNA blades or screws in a center or antero–posterior off–center position, 7 mm anterior or 7 mm posterior. They were mechanically tested in a setup simulating an unstable pertrochanteric fracture with lack of postero–medial support and load sharing at the fracture gap. All specimens underwent progressively increasing cyclic loading until catastrophic construct failure. Varus–valgus and head rotation angles were monitored by an inclinometer mounted on the head. A varus collapse of 5° or a 10° head rotation were defined as the clinically relevant failure criterion. Load at failure for specimens with augmented TFNA head elements (screw center: 3799 N ± 326 (mean ± SD); blade center: 3228 N ± 478; screw off–center: 2680 N ± 182; blade off–center: 2591 N ± 244) was significantly higher compared to the respective non–augmented specimens (blade center: 1489 N ± 41; screw center: 1593 N ± 120; blade off–center: 1018 N ± 48; screw off–center: 515 N ± 73), p Cement augmentation clearly enhances fixation stability of TFNA blades and screws. Non–augmented blades outperformed screws in antero–posterior off–center position. Positioning of TFNA blades in the femoral head is more forgiving than TFNA screws in terms of failure load. Augmentation with TFNA has not been approved by FDA." @default.
- W2600188825 created "2017-04-07" @default.
- W2600188825 creator A5007718319 @default.
- W2600188825 creator A5023146984 @default.
- W2600188825 creator A5023432889 @default.
- W2600188825 creator A5027274965 @default.
- W2600188825 creator A5028940106 @default.
- W2600188825 creator A5033572031 @default.
- W2600188825 creator A5072488092 @default.
- W2600188825 creator A5074370938 @default.
- W2600188825 date "2017-01-01" @default.
- W2600188825 modified "2023-09-27" @default.
- W2600188825 title "IMPACT OF BONE CEMENT AUGMENTATION ON THE FIXATION STRENGTH OF TFNA BLADES AND SCREWS" @default.
- W2600188825 hasPublicationYear "2017" @default.
- W2600188825 type Work @default.
- W2600188825 sameAs 2600188825 @default.
- W2600188825 citedByCount "0" @default.
- W2600188825 crossrefType "journal-article" @default.
- W2600188825 hasAuthorship W2600188825A5007718319 @default.
- W2600188825 hasAuthorship W2600188825A5023146984 @default.
- W2600188825 hasAuthorship W2600188825A5023432889 @default.
- W2600188825 hasAuthorship W2600188825A5027274965 @default.
- W2600188825 hasAuthorship W2600188825A5028940106 @default.
- W2600188825 hasAuthorship W2600188825A5033572031 @default.
- W2600188825 hasAuthorship W2600188825A5072488092 @default.
- W2600188825 hasAuthorship W2600188825A5074370938 @default.
- W2600188825 hasConcept C134018914 @default.
- W2600188825 hasConcept C141071460 @default.
- W2600188825 hasConcept C146249460 @default.
- W2600188825 hasConcept C159985019 @default.
- W2600188825 hasConcept C192562407 @default.
- W2600188825 hasConcept C2776541429 @default.
- W2600188825 hasConcept C2778891590 @default.
- W2600188825 hasConcept C2779100257 @default.
- W2600188825 hasConcept C2781017183 @default.
- W2600188825 hasConcept C2781411149 @default.
- W2600188825 hasConcept C2908647359 @default.
- W2600188825 hasConcept C29694066 @default.
- W2600188825 hasConcept C523993062 @default.
- W2600188825 hasConcept C71924100 @default.
- W2600188825 hasConcept C92162645 @default.
- W2600188825 hasConcept C99454951 @default.
- W2600188825 hasConceptScore W2600188825C134018914 @default.
- W2600188825 hasConceptScore W2600188825C141071460 @default.
- W2600188825 hasConceptScore W2600188825C146249460 @default.
- W2600188825 hasConceptScore W2600188825C159985019 @default.
- W2600188825 hasConceptScore W2600188825C192562407 @default.
- W2600188825 hasConceptScore W2600188825C2776541429 @default.
- W2600188825 hasConceptScore W2600188825C2778891590 @default.
- W2600188825 hasConceptScore W2600188825C2779100257 @default.
- W2600188825 hasConceptScore W2600188825C2781017183 @default.
- W2600188825 hasConceptScore W2600188825C2781411149 @default.
- W2600188825 hasConceptScore W2600188825C2908647359 @default.
- W2600188825 hasConceptScore W2600188825C29694066 @default.
- W2600188825 hasConceptScore W2600188825C523993062 @default.
- W2600188825 hasConceptScore W2600188825C71924100 @default.
- W2600188825 hasConceptScore W2600188825C92162645 @default.
- W2600188825 hasConceptScore W2600188825C99454951 @default.
- W2600188825 hasLocation W26001888251 @default.
- W2600188825 hasOpenAccess W2600188825 @default.
- W2600188825 hasPrimaryLocation W26001888251 @default.
- W2600188825 hasRelatedWork W1906981191 @default.
- W2600188825 hasRelatedWork W1980180816 @default.
- W2600188825 hasRelatedWork W1981763931 @default.
- W2600188825 hasRelatedWork W1989590117 @default.
- W2600188825 hasRelatedWork W2006865781 @default.
- W2600188825 hasRelatedWork W2024110466 @default.
- W2600188825 hasRelatedWork W2034792066 @default.
- W2600188825 hasRelatedWork W2063392777 @default.
- W2600188825 hasRelatedWork W2313787838 @default.
- W2600188825 hasRelatedWork W2520951429 @default.
- W2600188825 hasRelatedWork W2533920979 @default.
- W2600188825 hasRelatedWork W2545662103 @default.
- W2600188825 hasRelatedWork W2898917707 @default.
- W2600188825 hasRelatedWork W2912015238 @default.
- W2600188825 hasRelatedWork W3157617024 @default.
- W2600188825 hasRelatedWork W3198380523 @default.
- W2600188825 hasRelatedWork W3214249940 @default.
- W2600188825 hasRelatedWork W38071163 @default.
- W2600188825 hasRelatedWork W40149924 @default.
- W2600188825 hasRelatedWork W2793804844 @default.
- W2600188825 isParatext "false" @default.
- W2600188825 isRetracted "false" @default.
- W2600188825 magId "2600188825" @default.
- W2600188825 workType "article" @default.