Analysis of Clinical Features and Imaging Signs of Rapidly Destructive Hip Disease
Objective To investigate the clinical and imaging characteristics of rapidly destructive hip disease(RDHD),improve the understanding of RDHD,and reduce the rate of misdiagnosis and missed diagnosis.Methods 13 patients with clinically diagnosed RDHD during menstruation from December 2016 to May 2023 were retrospectively analyzed,their clinical and imaging data were analyzed,and related literature was reviewed.Results Among the 13 patients with RDHD,5 were males and 8 were females.Among them,10 patients had 3 times of imaging examination.The first examination showed normal or mild narrowing of the hip space,and the appearance and contour of the femoral head were smooth in 8 cases.MRI showed bone marrow edema of proximal femur and acetabulum in 5 cases,and subchondral incomplete fracture of femoral head in 2 cases.The X-ray findings of the second examination showed obvious narrowing of the joint space in 8 cases;CT showed subchondral bone dissolution of the femoral head,and the joint space was narrowed in 4 cases.MRI showed obvious narrowing of joint space,subchondral bone absorption of femoral head,obvious thickening of synovial membrane and fluid accumulation of joint cavity in 5 cases.The third imaging findings showed axe-like abnormal changes in the absorption destruction of most of the bone of the femoral head,which could involve the femoral neck,and bone destruction of the acetabulum in 8 patients.Three patients underwent 2 radiographic examinations.The bone destruction of the femoral head and acetabulum progressed rapidly,and finally most of the bone dissolution and absorption of the femoral head and acetabulum resulted in hip sublxation.Conclusion In the early stage of RDHD,most of the imaging manifestations were mild narrowing of joint space,smooth articular surface of femoral head,progressive bone resorption destruction of femoral head,femoral neck and acetabulum.
Rapidly Destructive Hip DiseaseClinical Characteristicsimaging Features
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