The Combination of the Tunnel View and Weight-Bearing Anteroposterior Radiographs Improves the Detection of Knee Arthritis

Table 3

The addition of the tunnel view shifted the compartments with detectable joint space narrowing.

#	AP alone	AP + tunnel
10 knees	Unicompartmental	Bicompartmental
4 knees	No arthritis	Unicompartmental
2 knees	No arthritis	Bicompartmental

Bicompartmental = both medial and lateral compartments.