Distractors
          Adequate slack in the patellar tendon
          Proper tension balance in the patellar retinaculum
          Coordinated contraction of the quadriceps, pes anserine, and biceps femoris muscles
              Key
              Excessive tension from the iliotibial band
          Question
              In the column “Patellofemoral Joint,” author Christy Cael lists several things that contribute to proper patellar tracking. Which of these does not contribute to proper tracking?