| Abstract [eng] |
Spinal fixation level is the most important assignment in Lenke I AIS surgery. Wrong fixation level can worsen patients posture and increases the probability of repeated operation. Patients were randomized into 3 groups according to the choice of spinal fusion level using „touched vertebra\" method. We analyze risk factors for non-fused lumbar curve progression, trunk shift and their relationship to the spinal fixation level. Assessed quality of life 2 years after the operation according to the selected fixation level in Lenke I type, we used validated SRS-LT questionnaire. We designed spinal disease recognition module, which will facilitate the diagnosis of scoliosis and improve the results of the evaluation objectivity. Non-fused lumbar curve progression prognostic risk factors: Risser 0 before the operation odds ratio (OR) is 68.03 (95%CI 3,4325-1348,3010, p=0,006), LIV+1 distance >12,6mm after 3-6 months OR is 1.59 (95% CI 1.2587- 2.031, p= 0.0001) and LIV angle after 2 years > 4.5 ° OR 1.31 (95% CI 1.0265-1.6629, p=0.03). Nagelkerke R2= 0.7153. Trunk shift prognostic risk factors: thoracic curvature apex vertebral translation >45mm before the surgery OR is 1.04 (95% CI 1.0065- 1.0754, p=0.019) and T1-CSVL distance before surgery >19 69 mm OR is 1.1 (95% CI 1.0209-1.1955, p=0.01). Nagelkerke R2 = 0.2230. The quality of life using different fixation level according „touched vertebra“ method is not signnificantly different. |
