Dual mobility is not only about reducing the risks of dislocations, the principle also allows for very large ranges of motion before impingement. The most obvious indications are: Dislocations, fractured necks of femur, the elderly (>70), non-compliant patients (alcohol, dementia..), tumours, joint laxity (neuro muscular disorders, cerebral palsy), rheumatoid arthritis, revisions..
Continue ReadingDoesn’t the PE get stuck in one position and not really move?
Posted on by Ev)Olu%tind
NO. If it were the case patients would have a limited range of motion. In all studies patients have post-operative ranges of motion comparable to fixed bearing cups. 1st generation DM cups from ‘79 to ‘98 had 22,2mm heads only. If the PE had not moved the patients would have had very limited mobility. EVOLUTIS […]
Continue ReadingWhat about long-term survivorship compared to fixed bearing cups?
Posted on by Ev)Olu%tind
Similar in terms of aseptic loosening with intraprosthestic dislocation included, better in terms of dislocations.Example Dual mobility 10 year survivorship for aseptic loosening and intraprosthetic dislocation in primary THR: Overall 95,24%, age 70 and over 98,6%, age 55 to 70, 97,5%, Under 55, 91,4%
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