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Skeletal Radiology

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01-11-2020 | Hip Dysplasia | Scientific Article

Radiographic characteristics of the hip joint in skeletally mature patients with multiple hereditary exostoses

Authors: Kazu Matsumoto, Hiroyasu Ogawa, Haruhiko Akiyama

Published in: Skeletal Radiology | Issue 11/2020

Abstract

Objective

To elucidate the radiological characteristics of the hips, especially in proximal femur, of skeletally mature patients with multiple hereditary exostoses (MHE).

Materials and methods

Fifty eligible patients (100 hips) were included in the study and assigned to the MHE group. The control group included age- and sex-matched individuals, and the radiographs of 100 hips were used as controls. We examined the anatomical characteristics of the acetabulum and the proximal femur, including the acetabular depth-width ratio (ADR), Sharp’s angle, femoral neck-shaft angle (NSA), Wiberg’s centre-edge angle (CEA), femoral neck axis length (FNAL), femoral head diameter, (FHD), femoral neck width (FNW), femoral shaft width (FSW), femoral neck-shaft angle (NSA), and femoral head-neck ratio (FHNR = FHD/FNW). p value < 0.05 was considered significant.

Results

Osteochondroma was frequently observed in the medial femoral neck (79%), but it was rarely found in the femoral head (1%). ADR and Sharp’s angle were not significantly different between the MHE and control groups (p = 0.2056, p = 0.5025). CEA was significantly different between the two groups (p < 0.0001). FNW was significantly larger in the MHE group than in the control group (p < 0.0001). FHNR was significantly different between the two groups (p < 0.0001). NSA was significantly larger than the MHE group (141.8° ± 9.7° vs 129.5° ± 5.6°, p < 0.0001).

Conclusions

Hip dysplasia in the pelvic side was not commonly observed in skeletally mature MHE patients. However, they showed femoral neck widening and coxa valga. The occurrence of osteochondroma around the femoral neck affects the degree of valgus deformity. These facts could be useful for orthopaedic surgeons treating MHE patients.

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Title: Radiographic characteristics of the hip joint in skeletally mature patients with multiple hereditary exostoses
Authors: Kazu Matsumoto
Hiroyasu Ogawa
Haruhiko Akiyama
Publication date: 01-11-2020
Publisher: Springer Berlin Heidelberg
Keyword: Hip Dysplasia
Published in: Skeletal Radiology / Issue 11/2020
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI: https://doi.org/10.1007/s00256-020-03482-0

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Radiographic characteristics of the hip joint in skeletally mature patients with multiple hereditary exostoses

Abstract

Objective

Materials and methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Materials and methods

Results

Conclusions

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