Figure 11.

Diagrammatic representation of methods of treating femoral head extrusion in LCPD. The extruded femoral epiphysis (a) can be contained by abduction the hip in a broomstick cast or an abduction brace (b) or by a proximal femoral varus osteotomy (c). Containment can also be achieved by reorienting the acetabulum by a Salter innominate osteotomy (d) or a triple pelvic osteotomy (e). A shelf acetabuloplasty (f) and a Chiari osteotomy (g) provide a cover for the extruded part of the femoral epiphysis without attempting to reverse extrusion itself.