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- See: Pediatric Pelvic Fractures

- Discussion:
    - disruption of acetabular triradiate cartilage in patient > age 12 will result in minimal subsequent growth disturbance;
    - in younger pts acetabular growth abnormality is frequent complication;
          - may result in shallow acetabulum & progressive subluxation of hip;
          - in younger pts, acetabular reconstruction is best accomplished w/ Chiari osteotomy;
    - in the report by Dora C, et al (2000), the authors followed 10 patients with post traumatic acetabular dysplasia;
          - all ten patients demonstrated marked retroversion averaging 27 deg (where as the contralateral acetabuli showed 23 deg of anteversion);
          - average center edge angle was 9.5 deg;
          - hip joint is typically lateralized and caudalized;
          - there is a significant posterolateral deficiency;

- Hip Dislocation:
    - hips may dislocate and subsequently will reduce spontaneously;
    - widening of the medial joint space may indicate cartilagenous entrapment

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Injuries of the acetabular triradiate cartilage and sacroiliac joint.

Injury to the acetabular triradiate physeal cartilage.

Triradiate cartilage injury. Report of two cases and review of the literature.

Acetabular and pelvic fractures in the pediatric patient: value of two- and three-dimensional imaging.

Avulsion fracture of the lateral acetabular margin. A case report.

Pathomorphologic Characteristics of Posttraumatic Acetabular Dysplasia. 

Acetabular fracture through the triradiate cartilage after low-energy trauma.

Acetabular fractures in children and adolescents.

A Radiographic Study of the Ossification of the Posterior Wall of the Acetabulum: Implications for the Diagnosis of Pediatric and Adolescent Hip Disorders

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