Midterm survival of a contemporary modular total knee replacement : A MULTICENTRE STUDY OF 1970 KNEES

• Published in: Journal of bone and joint surgery. British volume Vol. 90; no. 12; pp. 1594 - 1596
• Main Authors: DALURY, D. F, BARRETT, W. P, MASON, J. B, GOLDSTEIN, W. M, MURPHY, J. A, ROCHE, M. W
• Format: Journal Article
• Language: English
• Published: London British Editorial Society of Bone and Joint Surgery 01.12.2008; British Editorial Society of Bone & Joint Surgery
• Edition: British volume
• Subjects: Adult; Aged; Aged, 80 and over; Arthroplasty, Replacement, Knee - standards; Biological and medical sciences; Confidence Intervals; Diseases of the osteoarticular system; Equipment Failure Analysis; Female; Follow-Up Studies; Humans; Knee Joint - diagnostic imaging; Knee Joint - physiopathology; Knee Joint - surgery; Knee Prosthesis - standards; Male; Medical sciences; Middle Aged; Orthopedic surgery; Osteoarthritis, Knee - diagnostic imaging; Osteoarthritis, Knee - physiopathology; Osteoarthritis, Knee - surgery; Osteolysis - diagnostic imaging; Prosthesis Design; Prosthesis-Related Infections - diagnostic imaging; Radiography; Range of Motion, Articular - physiology; Retrospective Studies; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Survival Analysis; Treatment Outcome; Knee; Total knee arthroplasty; Orthopedic surgery; Prognosis; Treatment; Survival
• ISSN: 0301-620X; 2049-4394; 2044-5377; 2049-4408
• DOI: 10.1302/0301-620X.90B12.21064

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.