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Related Experiment Video

Updated: Jun 17, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
07:33

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

Published on: May 5, 2023

Unicompartmental knee arthroplasty is associated with greater patient preference but higher revision rates than total

Randa Elsheikh1,2, Nina Burgert3, Arthur Kievit4,5,6,7

  • 1University Department of Orthopedic Surgery and Traumatology, Kantonsspital Baselland, Bruderholz, Switzerland.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|June 16, 2026
PubMed
Summary

Related Concept Videos

Knee Joint01:23

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 group...

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Cartilage·2026

Unicompartmental knee arthroplasty (UKA) in patients with a prior total knee arthroplasty (TKA) offers better range of motion and patient preference, despite a higher revision risk. Careful patient selection is crucial for optimal outcomes in hybrid bilateral knee replacements.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Unicompartmental knee arthroplasty (UKA) is often underutilized in patients with existing contralateral total knee arthroplasty (TKA).
  • Isolated knee compartment disease is prevalent, yet treatment strategies for patients with prior contralateral TKA remain debated.

Purpose of the Study:

  • To evaluate functional outcomes, patient preference, and long-term survivorship of UKA in patients who have undergone a contralateral TKA.
  • To compare UKA outcomes against contralateral TKA in a hybrid bilateral knee replacement scenario.

Main Methods:

  • Systematic review and meta-analysis adhering to PRISMA guidelines.
  • Searched PubMed, Embase, Scopus, and Cochrane Central Library for relevant studies.
  • Primary outcome: post-operative range of motion (ROM); Secondary outcomes: PROMs, survivorship, complications, and patient preference.
Keywords:
implant survivorshippatient‐reported outcome measuresrange of motionsame patienttotal knee arthroplastyunicompartmental knee arthroplasty

Related Experiment Videos

Last Updated: Jun 17, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
07:33

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

Published on: May 5, 2023

Main Results:

  • UKA demonstrated significantly greater post-operative ROM (7.4°) and improvement in ROM compared to contralateral TKA.
  • While post-operative Knee Society Score (KSS) was similar, improvement in KSS was greater after TKA.
  • Patient preference significantly favored UKA, though UKA was associated with a higher revision risk.

Conclusions:

  • UKA in patients with a contralateral TKA yields superior ROM and patient preference but entails increased revision risk.
  • UKA should be considered in this population with careful patient selection and risk counseling.
  • Further prospective studies are necessary to refine patient selection and optimize outcomes for hybrid bilateral knee arthroplasty.