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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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Related Experiment Video

Updated: Mar 1, 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

Bicompartmental Knee Arthroplasty.

Nirav H Amin¹, Travis Scudday, Fred D Cushner

¹Associate Professor, Department of Orthopedic Surgery, Loma Linda University, Loma Linda, California.

Instructional Course Lectures

|June 9, 2017

Summary

This summary is machine-generated.

Bicompartmental knee arthroplasty offers a joint-preserving option for knee arthritis affecting two compartments. This procedure is ideal for active individuals seeking to maintain their previous activity levels.

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Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Published on: July 22, 2021

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Last Updated: Mar 1, 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

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

Published on: July 22, 2021

Area of Science:

Orthopedic surgery
Biomedical engineering
Rheumatology

Background:

Knee arthritis is a primary cause of disability globally.
Total knee arthroplasty is effective for widespread arthritis.
Emerging techniques address arthritis in specific knee compartments.

Purpose of the Study:

To evaluate bicompartmental knee arthroplasty as an alternative to total knee replacement.
To highlight the benefits of preserving knee structures.
To identify suitable patient candidates for bicompartmental procedures.

Main Methods:

Review of current surgical techniques for bicompartmental knee arthroplasty.
Analysis of patient outcomes and functional recovery.
Comparison with total knee arthroplasty in specific patient groups.

Main Results:

Bicompartmental knee arthroplasty is increasingly adopted for isolated two-compartment knee arthritis.
The procedure preserves natural knee kinematics, ligaments, and bone stock.
It demonstrates good functional outcomes for younger, active patients.

Conclusions:

Bicompartmental knee arthroplasty is a viable option for select patients with knee arthritis.
It allows for a return to high activity levels while preserving joint function.
This approach offers a less invasive alternative for specific arthritis patterns.