WebOct 15, 2024 · Talar dome subchondral lucency, the Hawkins sign, is a reassuring sign of talar revascularization seen on radiographs in some patients at the 6 to 9 week time point . 39 The presence of a Hawkins sign is considered to reliably exclude the possibility of osteonecrosis, although its absence is nonspecific. 39. Figure 5: WebClassic example of Hawkins sign, indicating that the talus has an adequate vascular supply and is unlikely to undergo avascular necrosis as a result of a talar neck fracture . This case is courtesy of George Matcuk, MD who generously shared it with me. 1 article features images from this case 22 public playlists include this case
Injuries of the Talus : Wheeless
WebFeb 2, 2024 · pathological fracture; In practice, often both direct and indirect mechanisms are important, e.g. a direct trauma coupled with a forceful contraction of the quadriceps 7. Morphology. transverse fracture of mid patella (most common) comminuted fracture; vertical fracture (least common) osteochondral defect usually from medial facet WebA Hawkins class I fracture is a nondisplaced fracture, without subluxation or dislocation, and has a 0–15% risk of developing AVN. A Hawkins class II fracture is a displaced … professor michael gibbons
Prognostic reliability of the Hawkins sign in fractures of …
WebFeb 2, 2024 · Tezval et al 12 studied the prognostic reliability of the Hawkins sign for osteonecrosis in patients with displaced fractures and demonstrated a sensitivity of 100% and a specificity of 58%. Most talar fractures are displaced and require surgical management. Patients generally present with edema and ecchymosis of the ankle or foot. WebINTRODUCTION. Although the pathogenesis is not entirely understood, disuse osteopenia (DO) is a known phenomenon associated with reduced weight-bearing as seen in the setting following a fracture. [] Linear subchondral DO is a characteristic pattern commonly observed following a talus fracture. [] This presents on radiographs as a subchondral … WebFeb 5, 2024 · The Hawkins sign is a radiographic finding of a thin linear subcortical radiolucency appreciated on post-treatment images which indicate preserved blood flow to the talar body in the setting of talar neck fractures. Talar dome osteochondral defects which are stable and nondisplaced often heal well, while displaced unstable fragments … professor michael feher