We have located links that may give you full text access.
COMPARATIVE STUDY
JOURNAL ARTICLE
Efficacy of MRI in classifying proximal focal femoral deficiency.
Skeletal Radiology 2007 March
OBJECTIVE: To evaluate the efficacy of MRI in classifying PFFD and to compare MRI to radiographic classification of PFFD.
DESIGN: Radiographic and MRI classification of the cases was performed utilizing the Amstutz classification system.
PATIENTS: Retrospective evaluation of radiographs and MRI exams in nine hips of eight patients with proximal focal femoral deficiency was performed by two radiologists.
RESULTS: The cases were classified by radiographs as Amstutz 1: n=3, Amstutz 3: n=3, Amstutz 4: n=1 and Amstutz 5: n=2. The classifications based on MRI were Amstutz 1: n=6, Amstutz 2: n=1, Amstutz 3: n=0, Amstutz 4: n=2 and Amstutz 5: n=0. Three hips demonstrated complete agreement. There were six discordant hips. In two of the discordant cases, follow-up radiographs of 6 months or greater intervals were available and helped to confirm MRI findings. Errors in radiographic evaluation consisted of overestimating the degree of deficiency.
CONCLUSION: MRI is more accurate than radiographic evaluation for the classification of PFFD, particularly early on, prior to the ossification of cartilaginous components in the femurs. Since radiographic evaluation tends to overestimate the degree of deficiency, MRI is a more definitive modality for evaluation of PFFD.
DESIGN: Radiographic and MRI classification of the cases was performed utilizing the Amstutz classification system.
PATIENTS: Retrospective evaluation of radiographs and MRI exams in nine hips of eight patients with proximal focal femoral deficiency was performed by two radiologists.
RESULTS: The cases were classified by radiographs as Amstutz 1: n=3, Amstutz 3: n=3, Amstutz 4: n=1 and Amstutz 5: n=2. The classifications based on MRI were Amstutz 1: n=6, Amstutz 2: n=1, Amstutz 3: n=0, Amstutz 4: n=2 and Amstutz 5: n=0. Three hips demonstrated complete agreement. There were six discordant hips. In two of the discordant cases, follow-up radiographs of 6 months or greater intervals were available and helped to confirm MRI findings. Errors in radiographic evaluation consisted of overestimating the degree of deficiency.
CONCLUSION: MRI is more accurate than radiographic evaluation for the classification of PFFD, particularly early on, prior to the ossification of cartilaginous components in the femurs. Since radiographic evaluation tends to overestimate the degree of deficiency, MRI is a more definitive modality for evaluation of PFFD.
Full text links
Trending Papers
Monitoring Macro- and Microcirculation in the Critically Ill: A Narrative Review.Avicenna Journal of Medicine 2023 July
ANCA-associated vasculitis - Treatment Standard.Nephrology, Dialysis, Transplantation 2023 November 9
ASA Consensus-based Guidance on Preoperative Management of Patients on Glucagon-like Peptide-1 Receptor Agonists.Anesthesiology 2023 November 21
Common postbariatric surgery emergencies for the acute care surgeon: What you need to know.Journal of Trauma and Acute Care Surgery 2023 December 2
How we approach titrating PEEP in patients with acute hypoxemic failure.Critical Care : the Official Journal of the Critical Care Forum 2023 October 32
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
Read by QxMD is copyright © 2021 QxMD Software Inc. All rights reserved. By using this service, you agree to our terms of use and privacy policy.
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app