The use of cementless total knee arthroplasty (TKA) components has increased during the past decade. The initial design of cementless metal-backed patellar components had shown high failure rates due to many factors. The aim of this study was to evaluate the clinical results of a second-generation cementless, metal-backed patellar component of a modern design. This was a retrospective review of 707 primary TKAs in 590 patients from a single institution, using a cementless, metal-backed patellar component with a mean follow-up of 6.9 years (2 to 12). A total of 409 TKAs were performed in 338 females and 298 TKAs in 252 males. The mean age of the patients was 63 years (34 to 87) and their mean BMI was 34.3 kg/m2 (18.8 to 64.5). The patients were chosen to undergo a cementless procedure based on age and preoperative radiological and intraoperative bone quality. Outcome was assessed using the Knee Society knee and function scores and range of motion (ROM), complications, and revisions.Aims
Methods
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
In 2000 the Nuffield and Rotaglide Knee prostheses were combined into the Rotaglide+ system. This allowed a choice of either mobile or fixed meniscal bearing in the same prosthesis. Between 1988 and 2000 460 primary Nuffield knee prostheses were implanted and between September 2000 and September 2005 185 primary Rotaglide+ prostheses have been used. A Prospective review using a pain score, range of movement, time walked, and the American Knee Surgeons score was performed. The Rotaglide+ cases have been age, sex, and diagnosis matched with 185 Nuffield knees. All prostheses have been implanted by one surgical team, using the same technique and the same instruments. All are inserted