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Journal of Bone and Joint Surgery - British Volume, Vol 90-B, Issue 12, 1594-1596.
doi: 10.1302/0301-620X.90B12.21064  
Copyright © 2008 by British Editorial Society of Bone and Joint Surgery
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Midterm survival of a contemporary modular total knee replacement

A MULTICENTRE STUDY OF 1970 KNEES

D. F. Dalury, MD, Orthopaedic Surgeon1; W. P. Barrett, MD, Orthopaedic Surgeon2; J. B. Mason, MD, Attending Orthopaedic Surgeon3; W. M. Goldstein, MD, Chairman, Clinical Professor of Orthopaedics4; J. A. Murphy, MS, Biostatistician5; and M. W. Roche, MD, Chief of Orthopaedics6

1 St. Joseph Medical Center, 8322 Bellona Avenue, Baltimore, Maryland 21204, USA.
2 Valley Orthopaedic Associates, 4011 Talbot Road, Suite 300, Renton, Washington 98055, USA.
3 OrthoCarolina Hip and Knee Center, 1915 Randolph Road, Charlotte, North Carolina 28207, USA.
4 Illinois Bone and Joint Institute, 9000 Waukegan Road, Suite 200, Morton Grove, Illinois 60053, USA.
5 DePuy Orthopaedics, 700 Orthopaedic Drive, Warsaw, Indiana 46582, USA.
6 Holy Cross Hospital, 4725 N. Federal Highway, Orthopaedic Center, Fort Lauderdale, Florida 33308, USA.

Correspondence should be sent to Dr D. F. Dalury; e-mail: ehenzel{at}jhmi.edu

This retrospective study evaluated the midterm clinical and radiographic outcomes of a second-generation total knee replacement system. In a multicentre consecutive series of 1512 patients, 1970 knees were treated with the PFC Sigma knee system (Depuy, Warsaw, Indiana). The patients were reviewed for functional outcome, and underwent independent radiographic evaluation at a mean follow-up of 7.3 years (5 to 10). A total of 40 knees (2%) required revision, 17 (0.9%) for infection. The incidence of osteolysis was 2.2%. The ten-year survival with revision for any cause other than infection as the endpoint was 97.2% (95% CI 95.4 to 99.1).

The PFC Sigma knee system appears to provide excellent results in the medium term.




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D. F. Dalury, J. B. Mason, J. A. Murphy, and M. J. Adams
Analysis of the outcome in male and female patients using a unisex total knee replacement system
J Bone Joint Surg Br, March 1, 2009; 91-B(3): 357 - 360.
[Abstract] [Full Text] [PDF]


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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General