The Pemberton osteotomy is a peri capsular osteotomy of the ilium performed since 1965 to treat congenital hip sublaxation or dislocation. It reshapes the acetabulum by hinging on the triradiate cartilage to provide anterior and lateral coverage, allowing for concentric reduction and creating a capacious acetabulum with reasonable joint mobility. Potential complications include premature closure of the triradiate cartilage, over reduction, hypercontainment, and reduced acetabular volume. It is contraindicated in cases of a closed triradiate cartilage, small acetabular volume, deformed femoral head, or severe stiffness.

1. Pemberton
osteotomy

2.  Peri capsular
osteotomy of the
Ilium for treatment
of congenital hip
sublaxation or
dislocation 1965

3.  Reshaping acetabuloplasty
 Hinged on triradiate cartilage
 Designed to provide anterior and lateral
coverage.

4.  Open triradiate cartilage
 acetabular dysplasia
 Concentric reduction
 Capacious acetabulum
 Reasonable joint mobility

8.  Excellent correction.
 Versatile.
 Stable osteotomy.

9.  Potential complication:
premature closure of TRC.
over reduction.
Hypercontainment.
??reduction of acetabulum
volume

10.  Contra indicated :
Closed TRC
Small acetabular volume .
Deformed femoral head.
Severe stiffness.