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- Title
Real time visualization of femoroacetabular impingement and subluxation using 320-slice computed tomography.
- Authors
Wassilew, Georgi I.; Janz, Viktor; Heller, Markus O.; Tohtz, Stephan; Rogalla, Patrik; Hein, Patrick; Perka, Carsten
- Abstract
We visualized extreme ranges of motion of the hip and located femoroacetabular impingement (FAI) and subluxations using 4dimensional (D) volume computed tomography (CT). In dynamic 4D CT, 30 patients with hip pain (>3 months) and positive clinical and radiological signs of impingement were prospectively analyzed. The investigations were performed in flexion, abduction, and external rotation. The accuracy of the CT visualization of FAI was compared with the intraoperative findings during surgical dislocation, which served as the gold standard. Compared to the intraoperative visualization of FAI, the dynamic CT images showed a high degree of accuracy. 4D CT is a suitable method to dynamically visualize the functional consequences of anatomical FAI pathologies. The location of impingement can be accurately determined, and when combined with information about possible labral tears and chondral damage supplied by magnetic resonance arthrography, allows the surgeon to select the optimal surgical access and plan the required operation for minimal invasiveness. © 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 31: 275-281, 2013
- Subjects
HIP joint dislocation; HIP surgery; CONE beam computed tomography; OSTEOARTHRITIS; PAIN management; MAGNETIC resonance imaging; INTRAOPERATIVE care; SUBLUXATION
- Publication
Journal of Orthopaedic Research, 2013, Vol 31, Issue 2, p275
- ISSN
0736-0266
- Publication type
Article
- DOI
10.1002/jor.22224