title: CT evidence for subchondral trabecular injury of the femoral head in transient osteoporosis of the hip: a case report.
abstract: A 28-yr-old woman presented with both hip pain that started sequentially during the peripartum period. Diagnosis of transient osteoporosis of the hip (TOH) was made based on typical findings of plain radiographs and magnetic resonance images. The subchondral trabeculae of the femoral head were evaluated on serially taken coronal multiplanar reformation computerized tomogram images. At 4 weeks after pain onset, marked decrease in the sclerotic density with irregular discontinuation was observed in the primary compression trabeculae. At 12 weeks, a focal area of irregular thickening of trabeculae was observed. At 20 weeks, sclerotic density of trabeculae recovered markedly and the focal area of irregular trabecular thickening disappeared. At 1 yr, subchondral trabeculae recovered almost completely. The evidence of subchondral trabecular injury was observed in the femoral heads of TOH.
authors.affiliation: Department of Orthopaedic Surgery, Inchon Medical Center Hospital, Inchon, Korea.
authors.forename: Yong Lae
authors.initials: YL
authors.lastname: Kim
authors.forename: Kwang Woo
authors.initials: KW
authors.lastname: Nam
authors.forename: Jeong Joon
authors.initials: JJ
authors.lastname: Yoo
authors.forename: Sung Hwan
authors.initials: SH
authors.lastname: Hong
authors.forename: Hee Joong
authors.initials: HJ
authors.lastname: Kim
mesh_terms: D000328:Adult; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging / Q000293:injuries*; D006801:Humans; D010024:Osteoporosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011247:Pregnancy; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed