Perkin's line

Perkin's line is a line used in the assessment of hip dysplasia in children. It is one of the many lines used in the evaluation of pediatric hip conditions. The line is drawn perpendicular to Hilgenreiner's line at the lateral edge of the acetabular roof on an anteroposterior radiograph of the pelvis.

Definition

Perkin's line is a vertical line drawn on an anteroposterior radiograph of the pelvis. It is drawn from the lateral edge of the acetabular roof, perpendicular to Hilgenreiner's line. The intersection of Perkin's line and Hilgenreiner's line divides the acetabulum into quadrants. The femoral head should lie in the inferomedial quadrant.

Clinical Significance

Perkin's line is used in the assessment of hip dysplasia in children. If the femoral head is not located in the inferomedial quadrant, it may indicate hip dysplasia or dislocation. This line is also used in conjunction with other lines such as Shenton's line and Hilgenreiner's line for a comprehensive evaluation of the pediatric hip.

History

Perkin's line is named after Harold Arthur Thomas Perkin, an English orthopedic surgeon who first described it in 1923. He was known for his work on the treatment of tuberculosis of the spine and hip in children.

See Also

• Hilgenreiner's line
• Shenton's line
• Hip dysplasia

References

Perkin's line Resources
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