Experimentelle Aspekte und klinische Früherfahrungen einer zementlosen Hüftgelenkpfanne aus UHMW-Polyäthylen

The Authors illustrate the biomechanical principles that have governed the production of their Balgrist hip socket and present the clinical results up to the end of 1991 with 717 implants. By virtue of the specific design and the tightening mechanism, this socket lends itself particularly well for use in dysplastic acetabuli or in revision hip surgery, where bone grafts are required to fill cavities that have resulted from severe bone loss.

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Is the RM- Uncemented Coated Acetabular Cup a Reliable Component in Total Hip Replacement?

Avai

Bombelli

1993

HIP International

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From August 1987 to the Ist of March 1993 1,477 RM.-isoelastic, uncemented cup components (257 HA, 1,220 Titanium coated) were inserted for T.H.R., matched with the RM- isoelastic and isotitan stem components. At a 4 year mean follow-up (7-1 years) 1,302 cups were clinically and radiographically assessed; 6.2% of cups could not be controlled, because at follow-up time the patients had died; 5.6% could not be traced. All the cups were fixed with 3.2 mm peripheral screws (mean number of screws: 6). The cups more than 60 mm in diameter were fixed with 2 additional cancellous (6.5 mm) screws. The Charnley score is: - 9 - (97.5%) - 8- (2.43%); 1 cup was removed because of infection (0.07%); 3 cups were revised because of malposition and reinserted in proper position. The results with a similar number of RM.-uncoated cups, fixed with only one or two screws from 1979 to 1985, at a mean 4 year follow-up were: 7% revision and 9% impending loosening. Even bone reaction at the bone-cup interface signifies no osteolisis, neither around the cup nor around the screws. The satisfactory clinical results suggest to proceed with the use of this cup

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Experimentelle Aspekte und klinische Früherfahrungen einer zementlosen Hüftgelenkpfanne aus UHMW-Polyäthylen

Cited by 4 publications

References 9 publications

Einjahresergebnisse der zementfreien Alloarthroplastik des Hüftgelenkes unter besonderer Berücksichtigung der präoperativen Knochendichtemessung mittels DPA

Einjahresergebnisse der zementfreien Alloarthroplastik des Hüftgelenkes unter besonderer Berücksichtigung der präoperativen Knochendichtemessung mittels DPA

The Self-Locking Balgrist Hip Socket for Cementless Fixation. Biomechanical Principles and Clinical Results

Is the RM- Uncemented Coated Acetabular Cup a Reliable Component in Total Hip Replacement?

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