Langzeitergebnisse der zementfreien Parhofer-Mönch Schraubpfanne

Autor:	S. Kirschner, C. P. Rader, Ulf Sauer, Christian Hendrich, Ak D
Rok vydání:	2004
Předmět:	High rate genetic structures business.industry Dentistry Joint instability Mean age Long term results Osseointegration Bone screws Medicine Orthopedics and Sports Medicine Surgery In patient sense organs Implant business
Zdroj:	Zeitschrift für Orthopädie und ihre Grenzgebiete. 12:292-297
ISSN:	1438-941X 0044-3220
DOI:	10.1055/s-2004-818784
Popis:	AIM: The aim of this study was an analysis of the long-term behaviour and implant migration of the Parhofer-Monch-screw cup seen in patients between 1982 and 1991. METHOD: 92 cups (m : f = 53 : 39, mean age 53 +/- 7 years) were included mainly prospectively. After 118 +/- 45 months all patients were examined clinically and radiologically. Digital migration analysis was performed using the single-film X-ray analysis (Einbildrontgenanalyse, EBRA). RESULTS: 5 patients had died. 32 cups were revised, in 7 patients a loosening of the cup was suspected. The 10-year-survival was 71.4 %. In 53 of 81 analysed cups a migration of more than 1 mm was shown, 28 cups did not migrate. In comparison to these stable implants the survival of migrated cups was significantly inferior. CONCLUSION: The 10-year-survival and the high rate of implant migration document the poor results of the PM cup. In spite of an extraordinary primary stability, the failure of secondary osseointegration represents the main cause of loosening in this type of cup.
Databáze:	OpenAIRE
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