Study on correlation between bone marrow edema, stage of necrosis and area ratio of necrosis with the hip pain grading in nontraumatic osteonecrosis of the femoral head

Wang Jianchuan 1 , Yang Lei 1 , Wang Benjie 1 , and Zhao Dewei 1
  • 1 Zhongshan Hospital of Dalian University Orthopaedic Laboratory, Dalian, Liaoning Province, China, 116001


The objective of this study was to explore the correlation between bone marrow edema, stage of necrosis, and area ratio of necrosis with the hip pain grading in non-traumatic osteonecrosis of the femoral head. Bone marrow edema grading at all levels and the hip pain grade differences were statistically significant (P < 0.001). Bone marrow edema grading increased by levels of 0, 1, and 2, whereas average pain rating increased as well to 40.73, 104.66 and 143.49. I ~ III period stage of necrosis and the hip pain grade difference was statistically significant (P < 0.001), with the average grade progress pain stage by the death of a rank gradually increased, I period, II period, III period was 57.00, 88.58 and 120.62, respectively. Area ratio of necrosis between 0 ~ 3 were positively correlated with pain, compared the two was statistically significant (P < 0.001), and with the degree of pathological changes is aggravating, increase the average rank of levels of pain. 0, 1, 2 and 3 are 36.88, 98.03, 123.87 and 151.93 respectively. We can choose the treatment method and evaluate treatment effect by considering a patients’ degree of bone marrow edema, stage of necrosis and area ratio of necrosis.

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