AIM To evaluate the influence of the titanium nitride(TiN) coating on the results of a total knee arthroplasty(TKA). METHODS A total of 910 patients(338 men; 572 woman), with a mean age of 65(range 36-94) undergoing 1...AIM To evaluate the influence of the titanium nitride(TiN) coating on the results of a total knee arthroplasty(TKA). METHODS A total of 910 patients(338 men; 572 woman), with a mean age of 65(range 36-94) undergoing 1031 primary TKAs were assessed. Clinical evaluation and patientreported outcomes were gathered one year after surgery. The questionnaires included the Knee injury and Osteoarthritis Outcome Score(KOOS)-Dutch version, Visual Analogue Scale(VAS) pain scores in rest and during active knee movement, VAS-satisfaction scores, and EQ-5 D-3 L health scores. This was aimed to assess the overall knee function and patient satisfaction, and to enable us to make a gross comparison to other TKAs.RESULTS At a mean follow-up of 46 mo(range 1-92) the overall implant survival was 97.7% and 95.1% for any operative reason related to the implant. Twenty-three knees(2.2%) required revision surgery. Arthrofibrosis was the most common indication for a re-operation. The clinical evaluation and patient-reported outcomes revealed good to excellent patient satisfaction and function of the arthroplasty. The median postoperative VAS-pain scores on a scale of 0-100, at one year after surgery were 1 in rest and 2 during movement.CONCLUSION The Ti N coated, mobile bearing TKA results are excellent and similar to those of other widely used TKA designs. Residual pain of the knee remains a concern and the Ti N coating in combination with the mobile bearing does not seem to be the simple solution to this problem. Future research will have to show that the coating gives a better survival than the cobalt chrome version.展开更多
文摘AIM To evaluate the influence of the titanium nitride(TiN) coating on the results of a total knee arthroplasty(TKA). METHODS A total of 910 patients(338 men; 572 woman), with a mean age of 65(range 36-94) undergoing 1031 primary TKAs were assessed. Clinical evaluation and patientreported outcomes were gathered one year after surgery. The questionnaires included the Knee injury and Osteoarthritis Outcome Score(KOOS)-Dutch version, Visual Analogue Scale(VAS) pain scores in rest and during active knee movement, VAS-satisfaction scores, and EQ-5 D-3 L health scores. This was aimed to assess the overall knee function and patient satisfaction, and to enable us to make a gross comparison to other TKAs.RESULTS At a mean follow-up of 46 mo(range 1-92) the overall implant survival was 97.7% and 95.1% for any operative reason related to the implant. Twenty-three knees(2.2%) required revision surgery. Arthrofibrosis was the most common indication for a re-operation. The clinical evaluation and patient-reported outcomes revealed good to excellent patient satisfaction and function of the arthroplasty. The median postoperative VAS-pain scores on a scale of 0-100, at one year after surgery were 1 in rest and 2 during movement.CONCLUSION The Ti N coated, mobile bearing TKA results are excellent and similar to those of other widely used TKA designs. Residual pain of the knee remains a concern and the Ti N coating in combination with the mobile bearing does not seem to be the simple solution to this problem. Future research will have to show that the coating gives a better survival than the cobalt chrome version.
