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Status: Bibliographieeintrag

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Verfasst von:Kasten, Philip [VerfasserIn]   i
 Neubrech, Christine [VerfasserIn]   i
 Raiss, Patric [VerfasserIn]   i
 Nadorf, Jan [VerfasserIn]   i
 Rickert, Markus [VerfasserIn]   i
 Jakubowitz, Eike [VerfasserIn]   i
Titel:Humeral head resurfacing in central bone defects
Titelzusatz:In vitro stability of different implants with increasing defect size
Verf.angabe:Philip Kasten, Christine Neubrech, Patric Raiss, Jan Nadorf, Markus Rickert, Eike Jakubowitz
Umfang:5 S.
Fussnoten:Gesehen am 12.07.2018
Titel Quelle:Enthalten in: Journal of orthopaedic research
Jahr Quelle:2012
Band/Heft Quelle:30(2012), 8, S. 1285-1289
ISSN Quelle:1554-527X
Abstract:We examined the rotary motions of two distinct cementless surface replacement arthroplasties of the shoulder that were implanted on humeri with central spherical bone defects of 8%, 17%, and 37% of the head volume (n = 5 each). Rotary motions were measured under a cyclic torque application and translated into relative micromotions. Implant A with a perforated central crown had micromotions < 150 µm in all bony defects and during all simulated shoulder activities. Implant B with a central tapered tri-fin pin had no micromotions > 150 µm in defects of 0% and 8% during a strenuous activity like lifting 10 kg, but did exhibit micromotion > 150 µm in 40% of the experiments in defects of 17% and 37%, which could impair bony ingrowth. Implant B displayed a significant increase in micromotions for defects of 8% and 17% (p < 0.05). Our results suggest that implant A could be used without risk in spherical head defects up to 37% of volume, even in strenuous shoulder activities immediately after its implantation. Implant B, however, is recommended in spherical defects starting from 8% and only during light shoulder activities until bony integration of the implant has occurred. © 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:1285-1289, 2012
DOI:doi:10.1002/jor.22074
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

: Verlag: http://dx.doi.org/10.1002/jor.22074
 : Verlag: https://onlinelibrary.wiley.com/doi/abs/10.1002/jor.22074
 : : https://doi.org/10.1002/jor.22074
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1577537424
Verknüpfungen:→ Zeitschrift

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