Hand surgery : an international journal devoted to hand and upper limb surgery and related research : journal of the Asia-Pacific Federation of Societies for Surgery of the Hand · 2004
Differences in radiographic findings between scaphoid fracture patterns.
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Inagaki H, Nakamura R, Horii E, Nakao E, Tatebe M
Аннотация
Scaphoid fracture patterns can be divided into volar and dorsal type using three-dimensional computed tomography. Ninety-nine patients underwent this examination plus radiography to determine how often fracture pattern was identifiable by radiography including proximal fragment ratio (PFR) measurement. Oblique radiographs obtained at 45 degrees of pronation demonstrated a volar displacement in 28 of 37 volar type fractures in three-dimensional computed tomography (76%), while as oblique view with 45 degrees of supination could identify the dorsal type in ten of 18 (56%). PFR showed a significant difference, with means of 0.59 for volar type and 0.43 for dorsal type. Using oblique views in the two rotational directions together with the PFR, the two fracture patterns could be differentiated in 35 of 43 fractures (81%). No differences were evident between the two fracture patterns with respect to prevalence of dorsal intercalated segment instability deformity.