A New Pelvic Osteotomy Method for Open Reduction

Yuxi Su2 enrolled

Overview

Developmental dysplasia of the hip (DDH) was one of the most common hip disorders disease in children. Pemberton osteotomy (PO) was one of the most widely used by the pediatric orthopedic surgeons. In our clinical work, the investigators found some defect the operation procedure. When the surgeons were not familiar to the PO, it may injured the triradiate cartilage or easily be absorbable of the distal iliac. Here, the investigators found a new pelvic osteotomy just from the inner "L shaped" iliac osteotomy (ILSO) to treat DDH. This approach was in a visible part of the sciatic notch and not presumed to be in the ischium, completely out of sight. Comparing to the PO method, the investigators' operation method was easy to master and had less complications.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Developmental Dysplasia of the Hip

Interventions

a new osteotomy from the inner "L shaped" iliac osteotomyPROCEDURE

There were two ostectomies were used in the osteotomy. The first was was a cured and 5mm width and the second one was straight 1.5cm width. All the directions was started from the inner to outer just a bove the triradiate cartilage and its shape like"L"

Eligibility

Sex: ALLMin age: 2 YearsMax age: 8 Years

Medical Language ↔ Plain English

Inclusion Criteria: * over two years old * open reduction and acetabular osteotomy * diagnosed as developmental dysplasia of the hip Exclusion Criteria: * a previous history of DDH surgery * teratologic dislocations * cerebral palsy * other spastic or neuromuscular disease

Outcomes

Primary Outcomes

preoperative acetabular index

preoperative acetabular index by measure the postoperative X-ray

Time frame: 6th month after surgery

Wiberg's mean center-edge angle

center-edge angle by measure the postoperative X-ray

Time frame: 6th month after surgery

Secondary Outcomes

blood loss

blood loss during surgery

Time frame: 1st day after surgery

avascular necrosis (AVN)

avascular necrosis (AVN) of the femoral head according to the Kalamchi and McEwen classification

Time frame: through study completion, an average of 1 year