Fig. 4.

(A–C) Postoperative radiographs obtained immediate after bilateral internal fixation with cannulated screw. (D) Arthroscopic observation on the right hip showing cleavage at labro-cartilage junction and acetabular cartilage delamination (black arrow). AL: acetabular labrum, FH: femoral head (E) Photomicrograph obtained from bone marrow of right iliac crest. Thin bone trabeculae noted. (Hematoxylin and eosin stain) (F) Undecalcified bone section. Increase in unmineralized osteoid (pink stain) compared with mineralized bone (bluish-green stain). (Villanueva-Goldner stain).