BACKGROUND:

The optimal surgical intervention for hip dysplasia in cerebral palsy (CP) is controversial. The purpose of this study was to determine (1) whether an isolated varus derotation osteotomy (VDRO) for the treatment of CP hip dysplasia allows for acetabular remodeling as measured by acetabular depth ratio (ADR), (2) the predictive factors for acetabular remodeling after an isolated VDRO for the treatment of CP hip dysplasia, and (3) to establish the normal ADR in typical children for comparison.

CONCLUSIONS:

Overall, isolated VDRO allowed for acetabular remodeling in CP hip dysplasia. Acetabular remodeling was increased in patients of GMFCS levels I, II, and III compared with patients of GMFCS levels IV and V. Increased varization at the time of VDRO improved acetabular remodeling. This study recommends considering GMFCS level and intraoperative NSA during surgical planning for CP hip dysplasia.
LEVEL OF EVIDENCE:

Level IV-retrospective study.

Resumen

CONCLUSIONES:
En general, VDRO aislada permitió la remodelación acetabular en la displasia de cadera en la CP. La remodelación acetabular aumentó en los pacientes de los niveles de GMFCS I, II, yIII en comparación con los pacientes de GMFCS niveles IV y V. El aumento de varization en el momento de VDRO perfecciono la remodelación acetabular. Este estudio recomienda considerar el nivel GMFCS y intraoperatoria NSA durante la planificación quirúrgica para la displasia de cadera e la CP.