Kinematically aligned total knee arthroplasty (TKA) is a new alignment technique. Kinematic alignment corrects arthritic deformity to the patient's constitutional alignment in order to position the femoral and tibial components, as well as to restore the knee's natural tibial-femoral articular surface, alignment, and natural laxity. Kinematic knee motion moves around a single flexion-extension axis of the distal femur, passing through the center of cylindrically shaped posterior femoral condyles. Since it can be difficult to locate cylindrical axis with conventional instrument, patient-specific instrument (PSI) is used to align the kinematic axes. PSI was recently introduced as a new technology with the goal of improving the accuracy of operative technique, avoiding practical issues related to the complexity of navigation and robotic system, such as the costs and higher number of personnel required. There are several limitations to implement the kinematically aligned TKA with the implant for mechanical alignment. Therefore, it is important to design an implant with the optimal shape for restoring natural knee kinematics that might improve patient-reported satisfaction and function.
Arthroplasty, Replacement, Knee ; Biomechanical Phenomena ; Congenital Abnormalities ; Femur ; Knee

Palliative medicine has shown demonstrated benefit for patients with serious illness, their families, and hospital systems. As such, the demand for palliative care services is growing at a fast pace, and health care facilities frequently struggle to develop and implement effective and sustainable methods of providing this care. As with any new system, challenges and barriers naturally exist to instituting palliative care. Undertaking careful assessment, planning, and resource allocation can provide the greatest likelihood of success when developing these novel yet much needed models of care. This summary paper offers a qualitative overview of the potential benefits and the rationale to implement robust palliative care systems. We briefly review the history of palliative medicine in the broadest sense and address several seminal works from the US palliative care literature. Core practices to establish and advance palliative medicine are suggested. Commentary is provided on some of the particular barriers to palliative system development that may need to be addressed in the context of Korean medical culture. Collectively, we hope this overview can contribute to a framework within which such research and development can occur, leading to increasingly effective and sustainable palliative medicine in Korea.
Cultural Characteristics ; Delivery of Health Care ; Humans ; Korea ; Mortuary Practice ; Palliative Care ; Resource Allocation