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Rib-based Distraction Surgery Maintains Total Spine Growth
Ron El-Hawary1, Amer Samdani, Jennie Wade
1*IWK Health Centre, Halifax, NS †Shriner's Hospital, Philadelphia, PA ‡Primary Children's Hospital, Salt Lake City, UT §Columbia Presbyterian Hospital New York, NY.
Journal of Pediatric Orthopedics
|June 20, 2015
Summary
Rib-based distraction surgery effectively increases total spine length in children with early onset scoliosis (EOS). This method maintains significant spine growth until age 10, unlike previous spine-based techniques.
Area of Science:
- Pediatric Orthopedics
- Spine Surgery
- Scoliosis Research
Background:
- Early onset scoliosis (EOS) treatment using spine-based distraction may lead to decreased spine length with subsequent lengthening procedures.
- Evaluating alternative distraction methods is crucial for optimizing spinal growth in EOS patients.
Purpose of the Study:
- To assess the impact of rib-based distraction on overall spine growth in children diagnosed with EOS.
- To compare the efficacy of rib-based distraction with previously observed outcomes of spine-based distraction.
Main Methods:
- Retrospective multi-center review of 35 EOS patients treated with rib-based distraction.
- Radiographic analysis of total spine height (T1-S1) at initial implantation and subsequent lengthening procedures.
- Primary outcome measures included T1-S1 height changes and percentage of expected age-based growth per lengthening interval.
Main Results:
- Total spine height increased from 19.9 cm pre-implantation to 28.0 cm by the 15th lengthening procedure (P<0.05).
- Patients maintained >75% of expected age-matched spine growth until age 10.
- Lengthening procedures did not demonstrate diminishing returns, with 27% increase in spine height observed over 15 procedures.
Conclusions:
- Rib-based distraction surgery is effective in increasing total spine height in EOS patients.
- This technique supports substantial spine growth, particularly before age 10, and may benefit pulmonary development.
- Rib-based distraction offers a promising alternative to spine-based methods, avoiding the trend of decreasing growth with repeated lengthening.
