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Prevalence of the thoracic scoliosis in children and adolescents candidates for strabismus surgery: results from a 1935-patient cross-sectional study in China.

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Every year, the Italian Scoliosis Study Group selects the best published papers on conservative spine treatment from the global scientific literature.
Here is the abstract from one of these papers. 

Prevalence of the thoracic scoliosis in children and adolescents candidates for strabismus surgery: results from a 1935-patient cross-sectional study in China.

Pan XX, Huang CA, Lin JL, Zhang ZJ, Shi YF, Chen BD, Zhang HW, Dai ZY, Yu XP, Wang XY.

Eur Spine J. 2020 Apr;29(4):786-793. doi: 10.1007/s00586-020-06341-7. Epub 2020 Feb 28.

PURPOSE 

No study so far has paid attention to strabismus-related spinal imbalance. This study aimed to determine the epidemiology of thoracic scoliosis in children and adolescents with strabismus and investigate the association of two diseases.

METHODS AND DESIGN

A cross-sectional study. Study group consists of 1935 consecutive candidates for strabismus surgery (4-18 years); Control group consists of the age- and sex-matched patients with respiratory diseases. All subjects underwent a screening program based on chest plain radiographs using the Cobb method. Their demographic information, clinical variables and results of Cobb angle were recorded and analyzed.

RESULTS 

A significantly higher prevalence of thoracic scoliosis (289/1935, 14.94% versus 58/1935, 3.00%) was found in study group compared with control group. Among strabismic patients, the coronal thoracic scoliosis curve mainly distributed in right and in main thoracic (198/289) and in the curves 10°-19° (224/289); Age range 7-9 years (103/1935), female (179/1935) and concomitant exotropia patients (159/851) were more likely to have thoracic scoliosis. According to the logistic regression, thoracic scoliosis had no significant association with age, BMI, duration of illness and onset age (p > 0.05). However, gender, BCVA, type of strabismus and degree of strabismus showed a significant relationship with the prevalence of thoracic scoliosis (p < 0.05).

CONCLUSIONS

With a pooled prevalence of 14.94%, strabismus patients showed a great higher risk of developing thoracic scoliosis. Screening for scoliosis in strabismus patients can be helpful to discover a high prevalence of potential coronal scoliosis. More attention should be paid to ophthalmological problems in patients with scoliosis. These slides can be retrieved under Electronic Supplementary Material.

What happens when scoliosis is left untreated?

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Our paper entitled “The natural history of idiopathic scoliosis during growth: a meta-analysis” was published some months ago in the American Journal of Physical Rehabilitation.
The research focuses on 13 studies in the scientific literature that examine the natural history of idiopathic scoliosis, that is to say, the way scoliosis evolves in the absence of any treatment.

“We conducted a systematic search of the literature in order to identify all published studies dealing with the natural history of idiopathic scoliosis. Our aim was to pool the data in a meta-analysis that might provide insight into disease progression rates” explains Isico physiatrist Dr Francesca Di Felice.

The data in the studies included in our meta-analysis were collected from individuals affected by infantile, juvenile and adolescent forms of idiopathic scoliosis from the time of detection until they were fully grown: these individuals, observed over time, never received any treatment for the condition.

 “Some of the studies included, generally the oldest ones, presented methodological weaknesses, such as failing to provide systematic data on the size of scoliotic curves at the beginning and end of treatment, to distinguish clearly between juvenile and adolescent forms, or to consider outcomes other than rate of progression: aesthetics, humps and sagittal balance, for example” Dr Di Felice goes on. “The meta-analysis revealed high rates of progression for all the forms of idiopathic scoliosis, and the data on infantile scoliosis  showed the highest variability: suffice it to say that the three studies referring to that category showed progression rates ranging from 5 to 80%!

I would say there is now little prospect of adding to the available data on the natural history of scoliosis through new randomised studies, given that it has become impossible, from an ethical point of view, to leave scoliosis patients untreated”.