A short-term magnetic resonance imaging analysis of acetabular adaptation in developmental dysplasia of the hip by open reduction or open reduction combined with Dega osteotomy

Abstract

Developmental dysplasia of the hip (DDH) is one of the most common limb deformities in pediatric orthopedics. Patients who cannot achieve closed reduction, or cannot maintain concomitant reduction, suffer from repeated dislocation or delay in diagnosis, treatment and need to undergo open reduction (OR) therapy. However, since researchers have demonstrated that patients treated by OR are prone to continue to experience acetabular dysplasia and dislocation, [1] it is recommended that OR and pelvic osteotomy should be performed at the same time in order to correct dysplasia, reduce the incidence of residual acetabular dysplasia and the rate of long-term reoperation. By performing pelvic osteotomy, acetabular coverage can be increased and the occurrence of hip instability can be avoided in the long run. [2] In recent years, Dega osteotomy has been widely applied in clinical practice because of its wide indications, simplicity of operation, low trauma, and lack of necessity to take the history of hip surgery into account.