Slipped capital femoral epiphysis, fixation by single screw in situ: A kinematic and radiographic study

Abstract

BACKGROUND: Slipped capital femoral epiphysis is known to produce characteristic deformities in the proximal femur, which affect hip motion and may cause a limp. This paper assessed the 3D gait kinematics in adolescents after single screw fixation of moderate to severe, stable, unilateral slipped capital femoral epiphysis. Our goals were to characterize the 3D kinematic patterns and to investigate the correlation between the severity of radiological deformity and severity of gait disturbance. METHODS: This was a retrospective study of patients seen at our institution between 2000 and 2009. Antero-posterior and frog lateral X-rays were reviewed to measure: Southwick's lateral slip angle, the ..