Fig.4 Representative case of HOPOX in longitudinal study

Four sets of x-rays at the time of surgery showed no osteophytes (a-d) . Ten years post-operatively (e-h) , the only osteophyte detected was on a tunnel view (open circle).

［ (a, e) anteroposterior, (b, f) lateral, (c, g) skyline, (d, h) tunnel view］