Migration of Polyethylene Fixation Screw After Total Knee Arthroplasty

Abstract Duracon (Howmedica, Rutherford, NJ) posterior stabilized total knee system has a snap fit locking mechanism of a tibial polyethylene, including an additional locking screw for further fixation of polyethylene. We report 13 cases of locking screw migration from tibial component after Duracon...

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Veröffentlicht in:	The Journal of arthroplasty 2009-08, Vol.24 (5), p.825.e5-825.e9
Hauptverfasser:	Cho, Woo-Shin, MD, Youm, Yoon-Seok, MD
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Arthroplasty, Replacement, Knee - adverse effects Arthroplasty, Replacement, Knee - instrumentation Biocompatible Materials Bone Screws - adverse effects Duracon total knee arthroplasty Female Foreign-Body Migration - etiology Humans locking screw Male Middle Aged Orthopedics Polyethylene Prosthesis Failure screw migration
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Zusammenfassung:	Abstract Duracon (Howmedica, Rutherford, NJ) posterior stabilized total knee system has a snap fit locking mechanism of a tibial polyethylene, including an additional locking screw for further fixation of polyethylene. We report 13 cases of locking screw migration from tibial component after Duracon posterior stabilized primary total knee arthroplasty. Among 13 knees, screw migration in 10 asymptomatic cases was incidentally detected during regular follow-up, and they were just observed in the outpatient clinic. Only 3 knees had moderate pain, swelling, and instability, and revision was done on 2 of 3 knees.
ISSN:	0883-5403 1532-8406
DOI:	10.1016/j.arth.2008.07.011