1. An early return to vigorous activity may destabilize anterior cruciate ligaments reconstructed with hamstring grafts1 
Eisaku Fujimoto, MD, Yoshio Sumen, MD, Yukio Urabe, MD, Masataka Deie, MD, Yuji Murakami, MD, Nobuo Adachi, MD, Mitsuo Ochi, MD 
Archives of Physical Medicine and Rehabilitation 
Volume 85, Issue 2, Pages (February 2004)
DOI: /S (03)00621-X

2. Fig 1
The distribution of knees (percentage) in the 3 anteroposterior (AP) displacement categories are shown through the postsurgical period.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (03)00621-X)

3. Fig 2
AP displacements during the postsurgical period for 13 patients with more than 3mm of increased AP displacement.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (03)00621-X)