I need help finding movie title

[Rawhead Rex]

There are a couple of horror movies I seen years ago, but I cant remember the name of either one. I do remember a couple of scenes from each that really are memorable if you have seen them. Maybe someone can help me!

description - This movie sounds like many other horror movies. A couple of times i thought i rented the correct movie,but no.....ok This movie is about a mad scientist on an island of cannibals. There are a group of people that come to this island. There is a scene where a person is walking through the jungle and set off a trap and a mattress size board with spikes on it sprung up and stuck to the person, and a bunch of cannabals were waiting in the bushes until the trap was sprung, and they all came to the person that was stuck and tore him apart eating...a really really gruesome scene....Thats really all i remember....I'm pretty sure Cannibal was in the title.

description II - I only remember one scene from this movie,but if anyone here has scene this, you will remember from what i'm about to say. There was a naked women laying on a bed in a dimly lit room and a killer standing over her with a big meat hook in his hands. The killer proceeded to insert the point of the hook into the womens private area and pulling up on the hook so the point came out her stomach. Then he pulled up really hard stretching the skin about a foot from her body....This was the most gruesome scene ever.I'll never forget looking over at my friend when we were watching this and seeing such terror and pain on his face.I saw this movie once over 21 years ago, and i don't remember the name.