Diagnostic value of magnetic resonance imaging in neurovascular bundle injury during total hip arthroplasty

H. Xu, X.-P. Zhu, L. Wang, Y.-J. Zhu, J. Wang, H. Zhang

Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China. zhanghui@ahmu.edu.cn

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• Orthopedics

OBJECTIVE: The objective of this study was to evaluate the diagnostic value of magnetic resonance imaging (MRI) in neurovascular bundle injury during total hip arthroplasty.

PATIENTS AND METHODS: The magnetic resonance imaging (MRI) examinations of the hip joints of 429 patients were reviewed. The distances on the left and right sides were measured and recorded using small, hydrophilic gadolinium (III)-based chelates as contrast agents. The data were analyzed and handled using Statistical Product and Service Solutions (SPSS).

RESULTS: The results showed that each measured distance in males was longer than in females, on both right and left sides (p<0.001). The coefficient of determination (R2) of the influencing factors on the three distances was found to be 0.162, 0.038, and 0.104, respectively, in multiple linear regressions. The results of the Pearson’s correlation coefficient also suggested that there was a significant correlation (p<0.05).

CONCLUSIONS: This study demonstrates that MRI can be a valuable diagnostic tool for neurovascular bundle injury during total hip arthroplasty. The gender difference in the measured distances indicates that sex should be considered when interpreting MRI findings.

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