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Relationship between pulmonary function and the degree of spinal deformity among adolescent idiopathic scoliosis (AIS) patients

Johari, Joehaimey and Nor, Sobri and Lam, Andrew and Omar, Ahmad Sabri and Abdullah, Ahmad Tajudin and Ab Rahman, Azriani and Sharifudin, Mohd Ariff and Yusof, Mohd Imran (2013) Relationship between pulmonary function and the degree of spinal deformity among adolescent idiopathic scoliosis (AIS) patients. In: Kelantan Research Day 2013, 30 Oct 2013, Rural Transformation Centre (RTC), Terminal Agribisnes Negara (TEMAN), Kota Bharu.

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Abstract

Background: A retrospective record review was conducted among patients aged between 13 to 24 years, diagnosed as adolescent idiopathic scoliosis (AIS) and admitted at Hospital Raja Perempuan Zainab II for surgical intervention from year 2000 to 2013. Methodology: The spinal deformity curvature was measured by the Cobb method on anterior-posterior radiographs. The forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV 1) were used to evaluate the pre operative pulmonary function. Simple linear regression was performed to analyse the relationship between Cobb angle and pre operative pulmonary function. Kruskal-Wallis and Mann Whitney tests were used to compare the lung function according to different levels of affected spinal vertebrae and the severity of the deformity. Results: Thirty-eight patients were recruited for the study; 18 patients of Lenke type IA, 13 patients of type IB and 7 patients of type V. The mean age of patients was 16.7 years (SD=6.04). Although statistically insignificant, results indicated inverse relationships between Cobb angle with FVC (b=-0.319; 95% CI B=-0.647, 0.009), and FEV1 (b=-0.326; 95% CI B=-0.683, 0.030). The median FVC was significantly higher in those with affected apical vertebrae at L1, L2, and L3 levels (median=92; IQR=30) than those with apical vertebrae at T6, T7, and T8 (median=68.5; IQR= 36) (p=0.008). The median FVC was also significantly higher in those with affected apical vertebrae located at L1, L2, and L3 (median =92; IQR =30) than those with affected T9 to T12 (median =74; IQR=19) (p=0.003). The median FVC was higher among those who have lower end vertebrae involving L1, L2, and L3 (median=83.5; IQR=19) than those with lower end vertebra involving T6 to T12 (median=70.5; IQR=31) (p=0.014). Conclusion: The lung function impairment was seen in more severe spinal deformity, more proximally located curve and in patients that are more elderly.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 5770/32603
Uncontrolled Keywords: pulmonary function, spinal deformity, adolescent idiopathic scoliosis (AIS) patients
Subjects: R Medicine > RD Surgery > RD701 Orthopedics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Medicine > Department of Department of Orthopaedics, Traumatology & Rehabilitation
Depositing User: Dr MOHD ARIFF SHARIFUDIN
Date Deposited: 08 Nov 2013 11:34
Last Modified: 08 Nov 2013 11:34
URI: http://irep.iium.edu.my/id/eprint/32603

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