Abstract
Introduction: The clinical results of 164 cementless Low Contact Stress Rotating Platform Knee Replacements are reported at a maximum follow-up of 15 years Revision for any reason but infection was considered as a failure.
Methods: 164 cementless TKA were assessed.
Findings: Radiological evaluation showed stable fixation of all components, but in 7 knees (4.26%) significant osteolysis had occurred. Four knees had osteolysis beneath a loose tibial component after 10.2 years from the index surgery and revised to a cemented long-stem tibial component. Three knees were treated with bearing exchange and with bone graft in the tibial lytic region at an average 11.4 years from the index surgery. One cementless rotating-bearing patella (0.60%) required revision.
Conclusion: The survivorship of cementless knee replacements using rotating platform with end points of revision for any mechanical reason but infection was 96.34% at 15 years. However, complications due to an increased incidence of osteolysis after 10 years follow-up have been also identified.
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