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C-0256 - Femoral neck version evaluated by CT: an observational study in different biomechanical hip settings

G. Dilorenzo1, S. Bruni1, C. Campagna1, V. Favia2, A. Stabile Ianora1, G. Angelelli1; 1 Bari/IT 2 Bari (BA)/IT Type: Scientific Exhibit
Area of Interests: Pelvis, Musculoskeletal joint, Musculoskeletal bone
Imaging Techniques: CT, CT-High Resolution, Image manipulation / Reconstruction
Procedures: Computer Applications-3D, Observer performance, Computer Applications-Detection, diagnosis
Special Focuses: Pathology, Motility, Prostheses
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Aims and objectives: To evaluate distribution of femoral neck version (FNV) values, obtained on CT scans, among three groups of patients representing different biomechanical hip settings: healthy hips, severe hip osteoarthritis, hip arthroplasty.

Methods and materials: Between January and September 2016, 55 patients (mean age 63, range 41-85), for a total of 110 hips, were evaluated with CT: 33  healthy hips (group 1), 48 hips affected by severe osteoarthritis (group 2), 29 hips with coxofemoral prosthesis (group 3). CT examinations were performed by using a[...]

Results: Mean FNV was 5.4° in Group 1, 11.8 °  in Group 2 and 11.4° in Group 3. The difference between mean FNV in  group 1 and  2 was statistically significant (p=0,0004). The difference between mean FNV in  group 1 and  3 was statistically significant (p=0,0025). There was no stat[...]

Conclusion: CT allows an accurate and reproducible measurement of FNV, that, in this study, is significantly increased in hips affected by severe osteoarthritis and in hips with prosthesis. Hip arthroplasty seems not to restore FNV normal values. 

Personal information: Dott. Giuseppe Dilorenzo DIM - Section of Diagnostic Imaging University of Bari Medical School Bari, Italy giuseppedlr@live.it

References: - Association between hip morphology and prevalence, clinical severity and progression of hip osteoarthritis over 3 years: The knee and hip osteoarthritis long-term assessment cohort results. Bouyer B, Mazieres B, Guillemin F, Bouttier R, Fautrel B, Morvan J, Pouchot J, Rat AC, Roux CH, Verrouil E, [...]

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