Incidence of osteonecrosis and insufficiency fracture of the hip and knee joints based on MRI in 300 renal transplant patients.
In: Hip international : the journal of clinical and experimental research on hip pathology and therapy, Jg. 29 (2019-05-01), Heft 3, S. 316-321
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Zugriff:
Introduction: The purpose of this study was to investigate the incidence of necrosis and insufficiency fracture of the hip and knee using magnetic resonance imaging (MRI) in renal transplant patients.
Methods: We examined 300 consecutive renal transplant patients using MRI of the hips and knees (T1-weighted coronal MRI) preoperatively and at 3 and 6 months postoperatively. Oblique axial-plane T1-weighted MRI and short-tau inversion-recovery T2-weighted MRI were performed parallel to the femoral neck when distinguishing the osteonecrosis of the femoral head (ONFH) from subchondral insufficiency fracture (SIF) of the femoral head was difficult.
Results: ONFH was observed in 3 hips (3 cases, 1.0%). Osteonecrosis of the knee was observed in 2 knees (1 case, 0.3%). SIF of the femoral head was observed in 5 hips (3 cases, 1.0%). Bilateral simultaneous onset of SIF of the femoral head was observed in 2 cases (0.7%). Insufficiency fracture of the knee was observed in 2 knees (1 case, 0.3%).
Conclusions: When it was difficult to distinguish ONFH from SIF of the femoral head, oblique axial-plane T1-weighted MRI and the short-tau inversion-recovery T2-weighted MRI parallel to the femoral neck were useful to establish the correct diagnosis.
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Incidence of osteonecrosis and insufficiency fracture of the hip and knee joints based on MRI in 300 renal transplant patients.
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Autor/in / Beteiligte Person: | Ohtsuru, T ; Yamamoto, T ; Murata, Y ; Morita, Y ; Munakata, Y ; Kato, Y ; Okazaki, K |
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Zeitschrift: | Hip international : the journal of clinical and experimental research on hip pathology and therapy, Jg. 29 (2019-05-01), Heft 3, S. 316-321 |
Veröffentlichung: | 2018- : Thousand Oaks, CA : SAGE Publishing ; <i>Original Publication</i>: Milano, Italy : Wichtig, c1991-, 2019 |
Medientyp: | academicJournal |
ISSN: | 1724-6067 (electronic) |
DOI: | 10.1177/1120700018808693 |
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