JEFF SEIDEL:Heads, shoulders, knees & toes: The anatomy of an amazing yet humbling Detroit Lions ... Derrick Barnes was off ...

JEFF SEIDEL:Heads, shoulders, knees & toes: The anatomy of an amazing yet humbling ... Derrick Barnes was off to a promising start before he tore the MCL and PCL in his right knee in Week 3 ...

Our understanding of knee anatomy and biomechanics has evolved over recent ... The knee joint is exposed using a standard approach but preserving the deep medial collateral ligament (MCL) attachment.