The Dual Radius Hemispherical “Trident”Cup: Results Based on 150 Consecutive Cases
Abstract: Introduction: Initial stability with press-fit cups can be achieved in a number of ways based on the design of the cup. With line-to-line fit, screws fixation, press-fit of 1 to 2 mm which is obtained by an oversized hemispherical cup, initial stability can be achieved with the dual-radius press-fit cups, which have an equatorial diameter 1 to 2 mm greater than that of the polar diameter, to ensure a good press-fit and to provide adequate initial stability for bone ingrowth to occur reliably. Authors: Enrico Bonicoli, MD, Consultant Orthopedic Surgeon, 1st Department of Orthopaedic Surgery, Alessandro Baluganti, MD, Resident, 1st Department of Orthopaedic Surgery, Lorenzo Andreani, MD, Resident, 1st Department of Orthopaedic Surgery, Nicola Piolanti, MD,Resident, 1st Department of Orthopaedic Surgery, Michele Lisanti, MD, Professor of Orthopaedic Surgery and Chief, 1st Department of Orthopaedic Surgery of Pisa, University of Pisa, Italy PMID: 23109072 |
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