Slipped upper femoral epiphysis

120 views514y Male10/9/2026

Clinical Presentation

A paediatric male is brought in by parents due to an acute-on-chronic antalgic limp, reduced hip internal rotation, and localized ache.

1AP and frog-leg view of the pelvis demonstrates mild slip of the left superior upper femoral epiphysis
2The right hip appears normal
3Pre slip, the earliest detectable change, has normal alignement but a widened growth plate.As the epiphysis slips, the metaphysis can be divided into thirds, which allows grading into mild, moderate, and severe.mild: lateral edge of epiphysis is within the lateral third of the metaphysismoderate: middle thirdsevere: medial third Line of Klein describes a line along the superior edge of the neck of femur
4The line should normally intersect the lateral part of the superior femoral epiphysis.In this case the right side is normal (blue line) whereas the left side demonstrates a slip (orange line).