Related Experiment Videos
One-stage posterior hemivertebra resection and correction using segmental posterior instrumentation
1Department of Orthopaedic Surgery, Hokkaido University School of Medicine, Sapporo, Japan. shono@med.hokudai.ac.jp
Spine
|April 11, 2001
Summary
One-stage posterior hemivertebra resection effectively corrects congenital kyphoscoliosis in adolescents. This safe surgical approach using segmental posterior instrumentation yields significant curve correction with minimal loss.
Area of Science:
- Spine surgery
- Pediatric orthopedics
- Skeletal deformities
Background:
- Congenital scoliosis from hemivertebra can cause severe spinal deformities.
- Traditional fusion and hemi-epiphysiodesis yield variable results, especially in adolescents.
- Hemivertebra resection offers more predictable deformity correction.
Purpose of the Study:
- To evaluate surgical outcomes of hemivertebra resection via a single posterior approach.
- To assess correction of kyphoscoliosis using segmental posterior instrumentation.
Main Methods:
- Retrospective study of 12 adolescent patients (8-24 years) with single hemivertebra.
- One-stage posterior hemivertebra resection followed by segmental posterior instrumentation.
- Radiographic evaluation pre- and post-surgery, and during follow-up (min. 2 years).
Main Results:
- Average scoliosis corrected from 49 to 18 degrees (64% correction).
- Average kyphosis corrected from 40 to 17 degrees.
- Minimal correction loss (≤5 degrees) and no intraoperative complications; solid fusion achieved.
Conclusions:
- One-stage posterior hemivertebra resection with segmental instrumentation is effective for congenital kyphoscoliosis.
- The procedure is safe and well-tolerated in adolescent patients.
- Ideal for thoracic or thoracolumbar single hemivertebra causing structural kyphoscoliosis.