Condyle vs. Epicondyle: What's the Difference?

Condyle vs. Epicondyle—what’s the difference? These two bone structures may sound alike, but they serve very different purposes in the body.

In this easy-to-understand reference, we’ll explain the key differences between condyles and epicondyles using simple English, real examples, and helpful comparisons—perfect for anatomy learners and medical English students.

Table of Contents

Condyle vs. Epicondyle: The Basics

What Is a Condyle?

A condyle is a rounded part of a bone that connects (or articulates) with another bone. It’s usually located at the end of a long bone and forms part of a joint, helping two bones move smoothly against each other.

Definition:

Condyle = Rounded end of a bone that forms a joint.

Where Can You Find Condyles?

You can find condyles in many parts of the body. Some common locations include:

Femur (thigh bone) – Has two condyles at the knee:
- Medial condyle
- Lateral condyle
Humerus (upper arm bone) – Has a condyle at the elbow
Mandible (jaw bone) – Has a condyle that helps move the jaw

Fun Fact:

The condyle helps bones fit together like puzzle pieces and allows for movement like bending, straightening, and rotating.

What Is an Epicondyle?

An epicondyle is a bony bump or projection that sits above a condyle. It does not form part of a joint like the condyle does. Instead, the epicondyle is a place where muscles and ligaments attach.

Definition:

Epicondyle = Small bump on a bone above a condyle, where muscles attach.

The word epi- means “on” or “above,” so you can remember that epicondyle means “on top of the condyle.”

Where Can You Find Epicondyles?

Some important examples include:

Humerus (upper arm bone) – Has two epicondyles at the elbow:
- Medial epicondyle (on the inside)
- Lateral epicondyle (on the outside)
Femur (thigh bone) – Also has medial and lateral epicondyles, located just above the condyles

Fun Fact:

The epicondyle is the site of common overuse injuries, like tennis elbow or golfer’s elbow, because it connects to muscles used in repetitive motion.

Condyle vs. Epicondyle: Key Differences

Feature	Condyle	Epicondyle
Meaning	Rounded end of a bone	Bony bump above the condyle
Function	Forms part of a joint	Connects muscles and ligaments
Shape	Smooth and rounded	Rough and raised
Involved in movement?	Yes – helps the joint move	No – supports muscle attachment
Found in	Femur, humerus, mandible	Femur, humerus
Root word origin	Greek “kondylos” (knuckle)	Greek “epi” (upon) + “kondylos”