Keywords:
Trauma, Athletic injuries, Acute, Statistics, Observer performance, MR, Musculoskeletal soft tissue, Musculoskeletal joint, Musculoskeletal bone
Authors:
O. K. Nakamura1, M. A. Rocha2, C. Wosny1, J. F. Guimarães2, L. G. D. C. Hartmann2, M. V. D. Nóbrega1, A. C. Valim1, L. A. Rosemberg2, M. B. D. G. Funari2; 1Sao Paulo, SP/BR, 2São Paulo/BR
DOI:
10.1594/ecr2013/C-1906
Purpose
Pronator quadratus muscle changes are commonly seen lesions on wrist MRI examinations,
although many times they are not valorized despite other associated wrist injuries.
Different conditions can affect the pronator quadratus muscle,
such as trauma,
inflammatory and infectious pathologies(1).
Traumatic muscular changes can appear as edema,
hematoma,
or even strain,
depending on the degree and mechanism of the trauma(2).
Classically wrist radiographs played an important role in the evaluation of traumatic lesions,
including the pronator quadratus fat pad sign in the lateral view radiograph,
but it is not reliable for subtle wrist fractures and MRI is justified for better evaluation to rule out abnormalities in many cases(3).
The purpose of this study is to demonstrate the correlation between pronator quadratus muscle changes and other wrist lesions on MRI,
such as bone changes,
ligament lesion and triangular fibrocartilage complex lesion.