Femoral head osteonecrosis: Volumetric MRI assessment and outcome
Φόρτωση...
Ημερομηνία
Συγγραφείς
Bassounas, A.
Karantanas, A. H.
Fotiadis, D. I.
Malizos, K. N.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Elsevier
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Eur J Radiol
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
Effective treatment of femoral head osteonecrosis (FHON) requires early diagnosis and accurate assessment of the disease severity. The ability to predict in the early stages the risk of collapse is important for selecting a joint salvage procedure. The aim of the present study was to evaluate the outcome in patients treated with vascularized fibular grafts in relation to preoperative MR imaging volumetry. We studied 58 patients (87 hips) with FHON. A semi-automated octant-based lesion measurement method, previously described, was performed on the T1-w MR images. The mean time of postoperative follow-up was 7.8 years. Sixty-three hips were successful and 24 failed and converted to total hip arthroplasty within a period of 2-4 years after the initial operation. The rate of failures for hips of male patients was higher than in female patients. The mean lesion size was 28% of the sphere equivalent of the femoral head, 24 +/- 12% for the successful hips and 37 +/- 9% for the failed (p < 0.001). The most affected octants were antero-supero-medial (58 +/- 26%) and postero-supero-medial (54 +/- 31%). All but postero-infero-medial and postero-infero-lateral octants, showed statistically significant differences in the lesion size between patients with successful and failed hips. In conclusion, the volumetric analysis of preoperative MRI provides useful information with regard to a successful outcome in patients treated with vascularized fibular grafts. (c) 2007 Elsevier Ireland Ltd. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
mr imaging, femoral head osteonecrosis, osteonecrosis/prognosis, volumetry, osteonecrosis/outcome, osteonecrosis classification, nontraumatic avascular necrosis, idiopathic aseptic necrosis, lesion size, rotational osteotomy, core decompression, hip osteonecrosis, follow-up, classification, quantification, prediction
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000248058800003
http://ac.els-cdn.com/S0720048X07001684/1-s2.0-S0720048X07001684-main.pdf?_tid=e4903cd9c4752819c0e617433b3ce009&acdnat=1339756207_178acdcb416e04baeafd66117af0e94e
http://ac.els-cdn.com/S0720048X07001684/1-s2.0-S0720048X07001684-main.pdf?_tid=e4903cd9c4752819c0e617433b3ce009&acdnat=1339756207_178acdcb416e04baeafd66117af0e94e
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών