The kneecap is a small bone at the front of the knee at the point where the thigh bone and shin bone meet. It protects the knee joint and connects muscles from the shin bone to the thigh. Types of kneecap fracture include:
- Stable fracture: the bone remains in line and can heal easily
- Displaced fracture: the bone is broken and separated, and the joint surface (cartilage) may also be damaged