# 🦵 Knee Osteoarthritis X-ray Dataset

## 📚 Context

Knee osteoarthritis is a degenerative condition involving the **breakdown of articular cartilage**, the flexible, slippery material that protects bones in the knee joint. It also affects the underlying bone and nearby soft tissues. 

While **knee osteoarthritis** is the most common form of arthritis causing knee pain, other forms like **rheumatoid arthritis**, **pseudogout**, and **reactive arthritis** can also affect the knee.

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## 🩻 Content

This dataset contains **knee X-ray images** and is designed for tasks such as:

- **Knee joint detection**

- **KL (Kellgren and Lawrence) grading of osteoarthritis severity**

### 🔢 KL Grade Descriptions

| Grade | Description |

|-------|-------------|

| 0     | Healthy knee image |

| 1     | *Doubtful*: Possible osteophytic lipping, slight joint narrowing |

| 2     | *Minimal*: Definite osteophytes and possible joint space narrowing |

| 3     | *Moderate*: Multiple osteophytes, definite joint narrowing, mild sclerosis |

| 4     | *Severe*: Large osteophytes, significant joint narrowing, severe sclerosis |

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## 🙏 Acknowledgements

> Chen, Pingjun (2018), “Knee Osteoarthritis Severity Grading Dataset”, Mendeley Data, V1  

> DOI: [10.17632/56rmx5bjcr.1](https://doi.org/10.17632/56rmx5bjcr.1)  

> Dataset organized using data from the **Osteoarthritis Initiative (OAI)**.