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Year : 2000  |  Volume : 34  |  Issue : 3  |  Page : 138-140

Pulmonary Functions In Scoliosis

Correspondence Address:
Abdullah Al-Othman

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Source of Support: None, Conflict of Interest: None

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We evaluated pulmonary functions in 27 patients with idiopathic adolescent scoliosis (AIS). In 21 patients the pulmonary functions were done before and after surgery whereas 6 patients who had refused surgery the readings of last follow-up were taken. The mean age was 14.79 years (SD ± 1.65) in the operated group with mean Cobb angle of 76.74° (SD ± 15.49) and the average correction was 53°. The mean follow-up was 58 months (14 – 132 months). Forced Vital Capacity (FVC), Forced Expiratory Volume (FEVI) Forced Expiratory Flow (FEF) (25-75%) were actually lower than predicted values by 15-25%. Post surgery this improved but a deficit of 2.8 to 7.3% remained. There was no statistical significance. In the non-operated patients the follow-up was 54 months and the pulmonary flow decreased by 56% of the cumulated value of FVC/FEVI and FEF from the first reading a p Value between <.0000 and <.0001. Pulmonary volumes were lower in patients with Cobb angle of >81° than in <80°. Statistical significance was observed in FEVI and FEF a P Value <.0001. Our findings suggest that after surgical correction and fusion in scoliosis patients pulmonary flow improves but remains marginally impaired in comparison, whereas in patients who were not operated pulmonary flow reduced between 53-61% indicating progressive deterioration.

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