Disease relevance of Hamate Bone

• A case of spontaneous rupture of the flexor tendons of a little finger due to projection of the hook of the hamate is reported [1].

High impact information on Hamate Bone

• A reliable diagnosis of CTS could be made sonographically, mainly based on an increase in cross-sectional area of the median nerve at the level of the pisiform or hamate bone [2].
• Major and minor axes, cross-sectional area, and the flattening ratio (major axis/minor axis) were measured at four levels: 1, distal edge of the flexor retinaculum; 2, center of the hook of the hamate; 3, wrist crease; and 4, distal one-third level of the forearm [3].
• Eleven patients with coronal fractures of the hamate bone, all involving dislocation of the hamate-metacarpal joint, are reported [4].

Anatomical context of Hamate Bone

• Complications occurred in four specimens (17 per cent) and included lacerations of an ulnar artery and a median nerve, partial laceration of a flexor tendon, and a fracture of the hook of the hamate [5].
• Rupture of the flexor tendon of a finger secondary to fracture of the hook of the hamate is extremely rare; only seven previous cases have been published [6].
• Surgical exploration revealed that the different elements of the flexor carpi ulnaris musculotendinous unit, which includes the pisiform, the pisohamate and pisometacarpal ligaments, were displaced proximally together with the avulsed fragment of the hook of the hamate and the fifth metacarpal [7].

Gene context of Hamate Bone

• In 414 wrists of 275 patients with clinically diagnosed idiopathic CTS and 408 wrists of 408 controls, we made ultrasonographic measurements of the nerve area at the distal (distal edge of the flexor retinaculum), mid (hook of the hamate), and proximal carpal tunnel (wrist crease) [8].

Analytical, diagnostic and therapeutic context of Hamate Bone

• This case report of a fracture of the hook of the hamate presenting as carpal tunnel syndrome emphasizes the importance of a careful physical examination, the necessity for a carpal tunnel roentgenogram and a high degree of suspicion by the surgeon in patients with symptoms of median nerve compression following trauma to the wrist [9].

References