The Diagnostic Value of the Vacuum Phenomenon during Hip Arthroscopy
Figure 1
(a) Fluoroscopy of the right hip in 33-year-old male with a painful hip prior to traction. (b) One minute of traction: the vacuum phenomenon shows detachment of cartilage from the femoral head (adapted with permission from [7]). (c) Arthroscopic view of the right hip of this patient demonstrates cartilage detachment of the femoral head.
