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Two year post-menarche rule for bracing: myth or reality?
Scoliosis volume 8, Article number: O14 (2013)
The SRS criteria for bracing studies proposes the limit of two years post-menarche (2YPM). This is also frequently used for bracing in the clinical everyday world.
To verify whether the 2YPM rule for bracing is appropriate in clinics, we aimed to answer the following four questions:
Is bone growth (according to Risser) almost completed?
Is stature growth ended?
Has scoliosis definitively finished progressing?
Are bracing results significantly reduced?
We consecutively developed four studies from our clinical prospective database, including 5,142 Females with Idiopathic Scoliosis Patients below the age of 20 years.
Risser stage is below 3 in 15.7%, and is still 0 in 2.4%.
Growth is not ended and is still decreasing (2.5 cm/y): 5% of patients have 4 cm of residual growth, 12% 3 cm and 25% 2 cm. End of growth is reached around 48 months post-menarche.
Scoliosis has not yet finished progressing, particularly in the third year, but also in the subsequent six months.
There is no change in the positive results of bracing before and after 2YPM, either for clinical-radiographic results and for percentage of patients improved/worsened.
Conclusions and discussion
These results suggest the need to carefully check the usefulness of the 2YPM rule for clinical studies. While reaching clinical therapeutic decisions in front of single patients, 2YPM is not a reliable parameter, at least not in Italy.
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Negrini, S., Donzelli, S., Lusini, M. et al. Two year post-menarche rule for bracing: myth or reality?. Scoliosis 8, O14 (2013). https://doi.org/10.1186/1748-7161-8-S2-O14
- Public Health
- Clinical Study
- Positive Result
- Stature Growth
- Single Patient