Knee Osteoarthritis Clinical Trial
Official title:
Comparison of Anatomically Aligned and Conventional Total Knee Arthroplasty in the Same Patients
Total knee arthroplasty(TKA) is a successful orthopedic surgery with excellent clinical
outcome and survival. However, there are concerns about patient satisfaction in previous
reports, and dissatisfaction rate of 15-30% is reported in clinical outcomes(PROMs) of some
studies. Therefore, for improving the patient's outcome and satisfaction after total knee
arthroplasty, it is necessary to change the design of the conventional total knee
arthroplsaty implant. The knee is a joint structure with several dynamic functions, and not
only the skeletal structure but also the soft tissue balance plays an important role in the
function of the knee joint. New implants are being developed to overcome the limitations of
conventional TKA implant, including the Journey II Bi-cruciate substituting total knee system
(JII-BCS; Smith & Nephew). JII-BCS implant has normal articular geometry, more anatomical
femoral shape, lateral tibial convex geometry, and asymmetrical tibial plateau, anterior and
posterior cams, which has been shown in experimental studies to produce nearly normal knee
movement by reproducing the actual normal anatomical alignment in vivo.
The clinical results of the kinematic effects of this anatomcally aligned change are
insufficient, and there is also a lack of comparative studies with conventional total knee
arthroplasty implant. The purpose of this study is to compare outcomes between anatomically
aligned TKA(JII-BCS) and conventional TKA(Legion total knee system, Smith & Nephew). This
study is a randomized controlled study in patients undergoing total knee arthroplasty per
day. Radiologic parameter, patients preference and clinical results was investigated in both
knee of same patients who received TKA during minimum 2 year follow up.
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