Comparison of interfragmentary compression in conventional and locked plating of proximal unicondylar tibia fractures : A biomechanical cadaver study / Stefan Rahm in Acta Orthopaedica Belgica, Vol.82/3 (Septembre 2016)

Public ISBD [article]  inActa Orthopaedica Belgica > Vol.82/3 (Septembre 2016) . - p. 586-592 Titre : Comparison of interfragmentary compression in conventional and locked plating of proximal unicondylar tibia fractures : A biomechanical cadaver study Type de document : texte imprimé Auteurs : Stefan Rahm ; Lukas Ebneter ; Birte Schultz ; [et al...] Année de publication : 2016 Article en page(s) : p. 586-592 Langues : Anglais (eng) Mots-clés : plateau tibial  fracture Résumé : The extent of interfragmentary compression in intraarticular fractures treated with various fixation methods have not yet been reported. Lateral split fractures were created in six pairs of cadaver tibiae treated using buttress plating with lag screws (group C) or locked buttress plating after clamp compression (group L). Interfragmentary compression and fracture displacement were continuously measured using pressure sensors and a stereoscopic 3-D image correlation system. Significantly larger interfragmentary compression was found initially after clamping the fragment (p < 0.05) in group C (median ± SD ; 45.1 ± 5.0 N/mm2) compared with group L (33.6 ± 3.4 N/mm2), and a statistical trend towards larger compression was also found after cyclic loading (p = 0.05) in group C (45.3 ± 8.6 N/mm2) compared with group L (28.7 ± 5.8 N/mm2). These data indicate that conventional plating with lag screws achieves higher interfragmentary compression in this model compared with external clamp compression and locked plating. Permalink : ./index.php?lvl=notice_display&id=47188 [article] Comparison of interfragmentary compression in conventional and locked plating of proximal unicondylar tibia fractures : A biomechanical cadaver study [texte imprimé] / Stefan Rahm ; Lukas Ebneter ; Birte Schultz ; [et al...] . - 2016 . - p. 586-592. Langues : Anglais (eng) in Acta Orthopaedica Belgica > Vol.82/3 (Septembre 2016) . - p. 586-592 Mots-clés : plateau tibial  fracture Résumé : The extent of interfragmentary compression in intraarticular fractures treated with various fixation methods have not yet been reported. Lateral split fractures were created in six pairs of cadaver tibiae treated using buttress plating with lag screws (group C) or locked buttress plating after clamp compression (group L). Interfragmentary compression and fracture displacement were continuously measured using pressure sensors and a stereoscopic 3-D image correlation system. Significantly larger interfragmentary compression was found initially after clamping the fragment (p < 0.05) in group C (median ± SD ; 45.1 ± 5.0 N/mm2) compared with group L (33.6 ± 3.4 N/mm2), and a statistical trend towards larger compression was also found after cyclic loading (p = 0.05) in group C (45.3 ± 8.6 N/mm2) compared with group L (28.7 ± 5.8 N/mm2). These data indicate that conventional plating with lag screws achieves higher interfragmentary compression in this model compared with external clamp compression and locked plating. Permalink : ./index.php?lvl=notice_display&id=47188

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