videos on external fixator (PCL 8)

Hey guys, these are the website for videos that could be helpful in understanding external fixator :

Fracture fixation animation:
http://www.youtube.com/watch?v=21plYYmaxi8

External bone fixation:
http://www.youtube.com/watch?v=ixPzoPkScRk&feature=related

Open reduction and internal fixation:
http://www.youtube.com/watch?v=qKeJd0j2J4E&feature=related

Elbow surgery dynamic external fixation for chronic dislocation:
http://www.youtube.com/watch?v=E6yGvdKUtS8

Leg lengthening:
http://www.youtube.com/watch?v=OSjfqwqnYU4&feature=related