Knee Arthrocentesis in Adults

Arlene Tieng; Giovanni Franchin

doi:10.3791/63135

JoVE Journal
Medicine

A subscription to JoVE is required to view this content. Sign in or start your free trial.

JoVE Journal Medicine

Knee Arthrocentesis in Adults

Full Text

10,085 Views

04:41 min

February 25, 2022

DOI: 10.3791/63135-v

Arlene Tieng¹, Giovanni Franchin¹

¹Department of Medicine,BronxCare Health System

Overview

This protocol describes arthrocentesis of the knee, a procedure involving the insertion of a needle into the knee joint to aspirate synovial fluid. This procedure can be both diagnostic and therapeutic, helping to determine the nature of knee effusions and alleviate pain.

Key Study Components

Area of Science

Clinical procedures
Orthopedics
Diagnostic techniques

Background

Arthrocentesis is a common procedure in orthopedic practice.
It involves the removal of synovial fluid from the knee joint.
This fluid can be analyzed for diagnostic purposes.
The procedure can also provide therapeutic relief from pain.

Purpose of Study

To outline the steps involved in performing knee arthrocentesis.
To highlight the benefits of fluid removal from the knee joint.
To provide guidance for clinicians performing this procedure.

Methods Used

Position the patient supine.
Palpate the knee to locate the patella.
Mark the skin at the corners of the patella.
Identify the aspiration site, avoiding infected skin and visible veins.

Main Results

Successful aspiration of synovial fluid can be achieved.
The procedure can lead to decreased pain for the patient.
Fluid analysis can provide important diagnostic information.
Proper technique is crucial for minimizing complications.

Conclusions

Arthrocentesis is an effective procedure for knee effusions.
It serves both diagnostic and therapeutic purposes.
Adhering to proper techniques enhances patient outcomes.

Frequently Asked Questions

What is arthrocentesis?

Arthrocentesis is a procedure to aspirate synovial fluid from a joint, commonly the knee.

Why is synovial fluid aspirated?

It is aspirated for diagnostic testing and to relieve pain associated with effusions.

What position should the patient be in during the procedure?

The patient should be in a supine position.

What should be avoided during the procedure?

Infected skin and visible veins should be avoided when marking the aspiration site.

What are the benefits of performing arthrocentesis?

Benefits include pain relief and obtaining fluid for diagnostic analysis.

Is arthrocentesis a safe procedure?

Yes, when performed correctly, it is considered safe with minimal complications.

Here the protocol describes arthrocentesis of the knee, a procedure in which a needle is inserted into the knee joint, and synovial fluid is aspirated. Synovial fluid may be removed for testing to determine the nature of the knee effusion. Arthrocentesis of the knee is typically performed with the patient supine.

This protocol describes arthrocentesis of the knee, a procedure in which a needle is inserted into the knee joint and synovial fluid is aspirated. An arthrocentesis can be diagnostic or therapeutic. Synovial fluid may be removed for testing to determine the nature of the effusion.

Removing fluid from a knee can decrease pain. With the patient in a supine position carefully palpate the knee to locate the patella and use a skin marker to make marks at the four corners of the patella. Place an X using a skin marker at the site that is one finger breath, superolateral to the patella and avoid infected skin and visible veins.

View the full transcript and gain access to thousands of scientific videos