Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: May 9, 2026

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

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

Published on: May 5, 2023

Knee rotation after unicompartmental arthroplasty.

I Ivarsson¹, J Gillquist, K Sommerlath

¹Department of Orthopaedic Surgery, University Hospital, Linköping, Sweden.

Clinical Biomechanics (Bristol, Avon)

|August 7, 2013

Summary

Knee replacement surgery did not alter tibial rotation compared to pre-surgery measurements. External rotation was less in patients than in healthy knees, suggesting ligaments play a key role in knee rotation restriction.

Related Concept Videos

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 group...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Local bisphosphonate reduces migration and formation of radiolucent lines adjacent to cemented acetabular components.

The bone & joint journal·2017

Same author

Biomechanical characteristics of different artificial substitutes for rabbit medial meniscus and effect of prosthesis size on knee cartilage.

Clinical biomechanics (Bristol, Avon)·2013

Same author

Design and testing of a flexible hip prosthesis.

Clinical biomechanics (Bristol, Avon)·2013

Same author

Thoraco-abdominal perimetry for partitioning of the tidal volume into fractions due to rib cage expansion and diaphragmatic descent.

Upsala journal of medical sciences·2010

Same author

[Not Available].

Operative Orthopadie und Traumatologie·2006

Same author

Fluoroscopic validation of electrogoniometrically measured femorotibial translation in healthy and ACL deficient subjects.

Scandinavian journal of medicine & science in sports·2002

Area of Science:

Orthopedic Surgery
Biomechanics
Biomedical Engineering

Background:

Unicompartmental knee replacement is a common procedure for knee osteoarthritis.
Understanding knee biomechanics, specifically rotation, is crucial for optimizing surgical outcomes.
Limited data exists on the impact of unicompartmental knee replacement on knee rotation.

Purpose of the Study:

To evaluate the effect of unicompartmental knee replacement on knee rotation.
To compare rotational differences between constrained and non-constrained prostheses.
To investigate the role of ligaments versus prosthesis design in rotational stability.

Main Methods:

Twenty patients undergoing unicompartmental knee replacement were assessed.
Knee rotation was measured using the Genucom Knee Analysis System before and 6 months after surgery.

Related Experiment Videos

Last Updated: May 9, 2026

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

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

Published on: May 5, 2023

Measurements were compared to 14 healthy control knees.

Main Results:

No significant difference in knee rotation was observed between pre- and postoperative measurements.
Patients exhibited less external tibial rotation compared to healthy controls (P < 0.01).
No rotational difference was found between constrained (PCA) and non-constrained (Oxford) prostheses.

Conclusions:

Unicompartmental knee replacement does not significantly alter rotational kinematics.
Ligamentous structures appear to be more critical for rotational restriction than prosthetic design.
Extension lag was not a significant factor influencing rotational outcomes.