Table 3.

Summary of common mistakes in femoral and tibial tunnel placement and its consequences on the graft

Tunnel	Position	Consequences on the graft
Femoral	Anterior	Excessive tension in flexion or stiffness in extension
	Posterior	Excessive tension in extension or laxity in flexion
	Central/Vertical	Rotational instability
Tibial	Anterior	Excessive tension in flexion or impingement against intercondylar notch in extension
	Posterior	Excessive tension in extension or impingement against the posterior cruciate ligament
	Medial	Impingement against the medial femoral condyle or against the posterior cruciate ligament
	Lateral	Impingement against the lateral femoral condyle