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Knee Joint

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...

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Updated: Apr 26, 2026

Novel Diagnostics in Revision Arthroplasty: Implant Sonication and Multiplex Polymerase Chain Reaction

Novel Diagnostics in Revision Arthroplasty: Implant Sonication and Multiplex Polymerase Chain Reaction

Published on: December 3, 2017

Unicompartmental knee replacement: controversies and technical considerations.

Waleed Albishi¹, Nasser M AbuDujain², Mohammed Aldhahri¹

¹Department of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh, 11362, Saudi Arabia.

Arthroplasty (London, England)

|May 1, 2024

Summary

Unicompartmental knee replacement (UKR) offers better outcomes than total knee arthroplasty (TKA) for knee osteoarthritis. This review covers UKR techniques, controversies, and updates, showing it is safe and effective.

Keywords:

Cemented Cementless Fixed bearing High tibial osteotomy Mobile bearing Return to sports Total knee arthroplasty Total knee replacement Unicompartmental knee arthroplasty Unicompartmental knee replacement

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In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

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Published on: May 5, 2023

Area of Science:

Orthopedic Surgery
Biomedical Engineering
Sports Medicine

Background:

Unicompartmental knee replacement (UKR) is an effective treatment for knee osteoarthritis, offering advantages over total knee arthroplasty (TKA).
These advantages include reduced blood loss, lower transfusion rates, and faster patient recovery.
This review addresses technical considerations, controversies, and recent updates in UKR.

Purpose of the Study:

To review critical technical considerations for unicompartmental knee replacement (UKR).
To discuss current controversies and recent updates regarding UKR procedures.
To compare UKR outcomes with other surgical interventions like total knee arthroplasty (TKA).

Main Methods:

A comprehensive literature review was conducted.
Peer-reviewed articles published up to December 2023 were included.
Searches were performed in PubMed, Google Scholar, ERIC, and Cochrane databases.

Main Results:

UKR demonstrates superior patient-reported outcomes, shorter hospital stays, and fewer complications compared to TKA.
Mobile-bearing UKR is technically demanding but may offer less wear; cementless designs are superior to cemented.
UKR is a viable alternative to high tibial osteotomy (HTO) and shows comparable revision rates to TKA due to improved indications and techniques.

Conclusions:

Unicompartmental knee replacement (UKR) is a safe and effective treatment for unicompartmental knee osteoarthritis.
Long-term data suggest UKR superiority over TKA in clinical outcomes, morbidity, mortality, and cost-effectiveness.
Further research is recommended to solidify UKR's long-term benefits.