Fig. 2
From: Trigger wrist caused by avascular necrosis of the capitate: a case report
Intraoperative photographs and microscopic findings of the excised surgical specimen. a Intraoperative photograph of the capitate (arrow) and the lunate (asterisk) during passive wrist extension. b Intraoperative photograph showed the triggering phenomenon between the proximal capitate (arrow) and the lunate (asterisk) during passive wrist flexion. c Intraoperative photograph after partial resection of the capitate (arrow). d Hematoxylin and eosin staining of the excised specimen (magnification 40×) showed lack of osteocyte nuclei in the bone lacunae (arrow)