His knee felt the size of a sofa pillow and throbbed like a piston engine.

He tried to struggle back up, but his knee throbbed painfully, his head spun.

Her elbow and a knee throbbed from her fall.

He was tired and cold and the knee throbbed.

His knee throbbed, and the skin was swollen around the white bandage.

Her knee throbbed from the press of her weight.

She started to run, her knee throbbing with every slap of her shoe against the dirt road.

His right knee has been throbbing since January.

The floor was hard and cold and her knees throbbed with pain, but still she crouched there.

His shattered knee throbbed as if it were being pounded by a madman with a hammer.