Optimized scheme for paired transverse corrective forces in S-shaped scoliosis via ultrasound and application in Chêneau brace: a pilot study.
Li Wang, Nan Xia, Chun Wang and 7 others
PMID 34789711WHAT IT FOUND
Placing the thoracic pressure pad 2 cm below the top of the curve, rather than at the top, significantly improved spinal alignment in adolescents with S-shaped scoliosis.
This position worked in Chêneau braces, but long-term outcomes and rotation correction require further study.
Key findings
01Test 2, which placed the thoracic force 2 cm inferior to the apical vertebra and the lumbar force at the apical vertebra, achieved the highest overall correction of spinal tilt (64.6%) compared to other positions.
02The superior correction in Test 2 was driven by the thoracic curve; there was no significant difference in correction between the four tests for the lumbar curve.
03Applying this position scheme to Chêneau braces in a second group of four patients resulted in immediate Cobb angle corrections of 46.4% for the thoracic curve and 57.3% for the lumbar curve.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The study was a pilot with a very small sample size (10 in the first phase, 4 in the second), limiting the generalizability of the findings. The first phase used a pneumatic simulation system, not actual braces, so the transfer to real-world fabrication in the second phase was limited to only four patients. Outcomes were immediate corrections measured by ultrasound and X-ray; the study did not assess long-term curve progression, pain, or functional outcomes. The correction of vertebral rotation (a key component of scoliosis) did not differ significantly between the force positions, suggesting the scheme primarily addresses lateral tilt. Braces in the second phase were hand-fabricated, meaning the skill of the orthotist could have influenced the results.
Declared interests
The authors disclosed no financial support and no conflicts of interest.
The easy way to misread this
Do not assume this position scheme corrects vertebral rotation or prevents long-term curve progression. The study only measured immediate changes in spinal tilt and found no significant difference in rotation correction between the tested positions.