Selected article for: "ARCO system and clinical diagnosis"
Author: Zhang, Qing-Yu; Li, Zi-Rong; Gao, Fu-Qiang; Sun, Wei
Title: Pericollapse Stage of Osteonecrosis of the Femoral Head: A Last Chance for Joint Preservation
  • Document date: 2018_11_5
    • ID: qd44vv2h_3
    Snippet: To better guide the diagnosis of nontraumatic ONFH, the clinical and imaging manifestations of the pericollapse stage ought to be characteristic and specific; meanwhile, the pericollapse stage should be able to discriminate between reversible and progressive ONFH lesions, providing the opportunity for joint-preserving procedures. By reviewing former studies and summarizing the clinical experiences of the Centre for Osteonecrosis and Joint-Preserv.....
    Document: To better guide the diagnosis of nontraumatic ONFH, the clinical and imaging manifestations of the pericollapse stage ought to be characteristic and specific; meanwhile, the pericollapse stage should be able to discriminate between reversible and progressive ONFH lesions, providing the opportunity for joint-preserving procedures. By reviewing former studies and summarizing the clinical experiences of the Centre for Osteonecrosis and Joint-Preserving and Reconstruction of China-Japan Friendship Hospital (CJFH), we proposed a new definition of the pericollapse stage of ONFH, which begins with the occurrence of subchondral fracture and ends after the head collapse exceeds 2 mm. Thus, the pericollapse stage is equivalent to approximately Stage III of the Steinberg classification system or Stage IIIa of the ARCO classification system.

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