Avascular Necrosis of the Talus

Abstract

Persistent pain in the ankle after relatively minor trauma is common and usually resolves spontaneously. Two cases of persistent pain after minor trauma are presented that involved unusual characteristics of scintigraphic and magnetic resonance imaging, compatible with avascular necrosis of the talar body. This is a rare finding in the absence of steroid use or significant trauma to the foot. The unusual vascular anatomy of the talus is considered in the possible mechanism of injury.

Blood and interstitial flow in the hierarchical pore space architecture of bone tissue

“…Osteonecrosis-related infarcts in long bones are generally asymptomatic and remain clinically undetected, until a fracture may occur. Bone infarcts are generally adjacent to a joint, mainly in the femoral head (Cushner and Friedman, 1988), humeral head (Frostick and Wallace, 1989), knee (Aglietti et al, 1983), foot and hand bones (Taniguchi et al, 2003; Karlakki and Bindra, 2003; Suzuki et al, 2003; Strokon et al, 2003), and the vertebrae (Yu et al, 2007). …”

Das Knochenödem am Fuß

“…Die klassische aseptische Knochennekrose am Fuß aufgrund gestörter Durchblutung ist am Talus zu beobachten [11,62]. Weitere aseptische Knochennekrosen finden sich im Bereich des Os naviculare, der Sesambeine und der Metatarsaleköpf-chen [8,13,16,18,52,63].…”