Fig. 9
From: Proximal medial patellar restraints and their surgical reconstruction
a Lateral radiograph of a knee with “Schöttle’s lines” in place. Radiographically, this is 1 mm anterior to the posterior femoral cortical line, 2.5 mm distal to the posterior origin of the medial femoral condyle, and proximal to the level of the posterior point of the Blumensaat line. b Lateral radiograph of the beath pin in place intraoperatively at the location of “Schöttle’s point.” c Correct position of femoral tunnel