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Related Experiment Videos

Isotope bone imaging in suspected scaphoid trauma

E B Rolfe, N W Garvie, M A Khan

    The British Journal of Radiology
    |September 1, 1981
    PubMed
    Summary

    Isotope bone imaging (IBI) aids in diagnosing scaphoid fractures when initial X-rays are unclear. Performed at least 48 hours post-injury, IBI reliably excludes fractures if no abnormal uptake is detected.

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    Area of Science:

    • Orthopedics
    • Radiology
    • Nuclear Medicine

    Background:

    • Radiological examination is often unreliable for confirming or excluding scaphoid fractures after carpal trauma.
    • Early identification of carpal bone injuries remains a diagnostic challenge.
    • Isotope bone imaging (IBI) offers a potential solution for early carpal injury detection.

    Purpose of the Study:

    • To explore the utility of isotope bone imaging (IBI) in the early identification of carpal bone injuries.
    • To assess the diagnostic accuracy of IBI for suspected scaphoid fractures when initial radiography is inconclusive.

    Main Methods:

    • Ninety-nine patients with suspected scaphoid fractures and normal initial radiographs underwent IBI.
    • 555 MBq of 99Tcm methylene diphosphonate was used for imaging.
    • Imaging interpretation considered timing (at least 48 hours post-trauma) and location of abnormal focal increased uptake (AFIU).

    Main Results:

    • Abnormal focal increased uptake (AFIU) was detected in 47 patients (47.5%).
    • Of the 47 patients with AFIU, 26 had uptake localized to the scaphoid bone.
    • Subsequent radiological evidence of fracture was found in 19 of the 47 cases with AFIU (42%).

    Conclusions:

    • IBI is reliably interpreted at least 48 hours after injury; AFIU may persist for years post-fracture.
    • IBI can confidently exclude scaphoid fractures in patients showing no AFIU.
    • IBI serves as a valuable alternative for identifying and localizing carpal injuries, differentiating osseous from non-osseous pathology.

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