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Pediatric Radiology

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01-11-2008 | Original Article

Importance of sagittal MR imaging in nontraumatic femoral head osteonecrosis in children

Authors: Alice S. Ha, Lawrence Wells, Diego Jaramillo

Published in: Pediatric Radiology | Issue 11/2008

Abstract

Background

In nontraumatic femoral head osteonecrosis, characterization of femoral head collapse is important in staging disease progression and planning treatment. Few prior studies have quantitatively compared the ability of sagittal and coronal MR images to detect femoral head collapse.

Objective

We hypothesized that sagittal MR images show a greater degree and angular span of femoral head collapse than coronal images.

Materials and methods

We reviewed 38 hip MRI scans of nontraumatic femoral head osteonecrosis from 34 pediatric patients. In both sagittal and coronal images, the maximal extent and angular location along with the angular span of the femoral head collapse were measured. Differences were evaluated using a paired t-test. The extent of bone and cartilage loss from the femoral head was evaluated.

Results

Sagittal MR images showed 29% maximal femoral head radius collapse, whereas coronal images showed 16% collapse (P<0.001). Sagittal images showed a larger angular span of collapse (115°) than coronal images (55°, P<0.001). Sagittal images showed greater epiphyseal bone loss in the anterior than in the posterior portion (P<0.001), whereas coronal images did not show a significant difference in bone loss between the medial and lateral portion (P=0.32).

Conclusion

Sagittal images show greater femoral head collapse than coronal images in nontraumatic femoral head osteonecrosis.

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Title: Importance of sagittal MR imaging in nontraumatic femoral head osteonecrosis in children
Authors: Alice S. Ha
Lawrence Wells
Diego Jaramillo
Publication date: 01-11-2008
Publisher: Springer-Verlag
Published in: Pediatric Radiology / Issue 11/2008
Print ISSN: 0301-0449
Electronic ISSN: 1432-1998
DOI: https://doi.org/10.1007/s00247-008-0979-6

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Importance of sagittal MR imaging in nontraumatic femoral head osteonecrosis in children

Abstract

Background

Objective

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Objective

Materials and methods

Results

Conclusion

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