Investigation of Conservative Treatment on Adolescent Idiopathic Scoliosis Patients.

Primary outcomes

1. Balance and postural control parameters -Weight Bearing/Squat

   Time frame: Change from baseline balance and postural control parameters at 6 weeks, Change from baseline balance and postural control parameters at 1 year, Change from 6th weeks balance and postural control parameters at 1 year

   Weight Bearing/Squat (percentage, %): Weight bearing percentages of the right and left feet were measured at 0°, 30°, 60°, 90° knee flexion.

2. Cobb Angle

   Time frame: Change from baseline Cobb angle at 1 year

   Cobb Angle (degree): The degree of curvature in the coronal plane is measured radiographically according to the Cobb method

3. Angle of Trunk Rotation

   Time frame: Change from baseline Angle of Trunk Rotation at 6 weeks, Change from baseline Angle of Trunk Rotation at 1 year, Change from 6th weeks Angle of Trunk Rotation at 1 year

   ATR - Angle of Trunk Rotation (degree): Measurement of trunk rotation angle/degree is the most appropriate method used in the clinical evaluation of scoliosis.

4. Evaluation of subjective visual vertical perception

   Time frame: Change from baseline subjective visual vertical perception at 6 weeks, Change from baseline subjective visual vertical perception at 1 year, Change from 6th weeks subjective visual vertical perception at 1 year

   Evaluation of subjective visual vertical perception (degree): Subjects were asked to manually verticalize the deviated laser line projected on a wall 1 m away in a room that is dark enough to prevent them from taking visual references while standing. Photographs were recorded during this process.

5. Electroencephalography (EEG)

   Time frame: Change from baseline EEG at 6 weeks

   In EEG recordings, epochs of 1000 ms before and 1000 ms after the stimulus were created. In these sweeps, those with amplitudes greater than ±50 μV in the EOG electrode channels and those with noise were removed. The files obtained for each individual were baseline corrected and filtered with a digital bandpass filter with 0.5 - 48 Hz limit values (12 dB/oct and zero phase shift, Neuroscan 4.5 ). After the filtering process, the mean (average) file was created for each individual.

   In measuring the amplitudes of the electrophysiological responses, the responses with the largest amplitudes between 0-1000 ms were measured and evaluated in µV. EEG recordings were taken from 64 channels. However, PO3, POZ and PO4 electrodes in the parieto-occipital region were investigated as these are the primary areas for visual stimuli.

6. The Dicotic Listening Paradigm:

   Time frame: Change from baseline The Dicotic Listening Paradigm parameters at 6 weeks

   There are 30 different (heteronymous) and 6 identical (homonymous) combinations for syllables. It was applied at 78.9 dB SPL (sound pressure level) in dichotic application. . Three rounds, with an average session duration of 7.5 minutes, and a total of approximately 25-30 minutes of test with intervals. In the dichotic application, the participants were first asked to respond without paying attention to any of their ears (non-forced/NF). In the following session, the participants were told to direct their attention to their right ear (forced right ear attention/FR) and to direct their attention to their left ear (forced left ear attention/FL).

7. Assessment of health-related quality of life

   Time frame: Change from baseline The Scoliosis Research Society - 22 questionnaire at 6 weeks, Change from baseline The Scoliosis Research Society - 22 questionnaire at 1 year, Change from 6th weeks The Scoliosis Research Society - 22 questionnaire at 1 year

   The Scoliosis Research Society - 22 questionnaire (SRS-22) is a health-related quality of life questionnaire designed specifically for patients with spinal deformities. SRS-22 consists of the sub-headings of function, pain, body image, mental health and satisfaction with treatment and includes 22 questions in total.

8. Balance and postural control parameters-Modified Clinical test of Sensory Interaction on Balance

   Time frame: Change from baseline balance and postural control parameters at 6 weeks, Change from baseline balance and postural control parameters at 1 year, Change from 6th weeks balance and postural control parameters at 1 year

   Modified Clinical test of Sensory Interaction on Balance (degrees per second,°/sn): Body center of gravity is expressed as the ratio of swing speed and distance to time. Body center of gravity is the ratio between distance traveled (expressed in degrees) and trial time (10 sn).

   Average body center of gravity swing rate (degrees per second) i) Eyes open on hard ground, ii) Eyes closed on hard ground, iii) On soft ground, eyes open and iv) It was measured in four different situations with eyes closed on soft ground.

9. Balance and postural control parameters-Limit of stability

   Time frame: Change from baseline balance and postural control parameters at 6 weeks, Change from baseline balance and postural control parameters at 1 year, Change from 6th weeks balance and postural control parameters at 1 year

   Limit of stability (% and °/sn): It is used to determine the limits of body stability. Reaction time (sec), movement speed (degrees / sec), end point reached (%), maximum end point (%) in 8 directions: front, right front, right, right back, rear, left back, left, left front and measurements were taken in terms of directional control (%).