Unicompartmental Knee Arthroplasty Relieves Pain and Improves Function More Than Total Knee Arthroplasty

Effect of Age on Cost-Effectiveness of Unicompartmental Knee Arthroplasty Compared with Total Knee Arthroplasty in the U.S.

“…However, benefits of unicompartmental knee arthroplasty may appeal to younger patients who are still active and in the workforce, some of whom may feel that the immediate quality-of-life benefits outweigh the increased risk of revision when they are retired and less active. Very few studies have compared quality of life between unicompartmental and total knee arthroplasty at the time of follow-up, and the literature is divided between findings of no difference 34,35 and an advantage for unicompartmental knee arthroplasty compared with total knee arthroplasty 36 .…”

Anteroposterior Laxity After Bicruciate-Retaining Total Knee Arthroplasty Is Closer to the Native Knee Than ACL-Resecting TKA: A Biomechanical Cadaver Study

“…The removal of the ACL for a posterior cruciate retaining (CR) prosthesis, or both ACL and PCL for a posterior stabilised/ substituting (PS) prosthesis, could be partially responsible for the loss of joint function that some TKA patients experience due to instability. There is in vivo evidence of a satisfaction and function gap between unicompartmental knee arthroplasty (UKA) and TKA patients [10,11], and also that a bi-cruciate retaining (BCR) TKA (that keeps both the PCL and ACL) can improve replaced knee motion and corresponding patient satisfaction compared to conventional TKA [12][13][14]. However, these devices have only once been evaluated mechanically [15] and they have seldom been used clinically beyond their surgeon-inventors.…”

Kinematics of passive flexion following balanced and overstuffed fixed bearing unicondylar knee arthroplasty

“…Advantages of the operation include a less invasive approach as opposed to a TKA with preservation of the anterior and posterior cruciate ligaments, which may help to better restore native kinematics of the knee. In fact, recent data indicate that UKA outperforms TKA at a short-term followup of three years in terms of their SF-12 and WOMAC scores [2].…”