Honda sign

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The "Honda sign" (H-pattern [1] ) is a radiologic sign seen in case of sacral insufficiency fracture in bilateral sacral insufficiency fractures on a radioisotope bone scan. [2] It gets its name because the shape observed resembles the logo of the Honda motor company, resembling the alphabet "H".

Description

This sign is typically associated with bilateral fractures of the superior and inferior pubic rami. In simpler terms, it indicates a specific pattern of pelvic fractures where both the upper and lower parts of the pubic bones are fractured on both sides. [2]

While Honda sign is diagnostic of sacral insufficiency fracture, it is visible in only up to 40% of the cases. [3]

References

  1. Lapina, Oksana; Tiškevičius, Sigitas (1 January 2014). "Sacral insufficiency fracture after pelvic radiotherapy: A diagnostic challenge for a radiologist". Medicina. 50 (4): 249–254. doi: 10.1016/j.medici.2014.09.006 . ISSN   1010-660X. PMID   25458963 . Retrieved 12 November 2023.
  2. 1 2 Lyders, E.M.; Whitlow, C.T.; Baker, M.D.; Morris, P.P. (February 2010). "Imaging and Treatment of Sacral Insufficiency Fractures". American Journal of Neuroradiology. 31 (2): 201–210. doi:10.3174/ajnr.A1666. ISSN   0195-6108. PMC   7964142 . PMID   19762463.
  3. Blake, S P; Connors, A M (October 2004). "Sacral insufficiency fracture" . The British Journal of Radiology. 77 (922): 891–896. doi:10.1259/bjr/81974373. ISSN   0007-1285 . Retrieved 12 November 2023.