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European Journal of Physical and Rehabilitation Medicine 2021 Jul 01

DOI: 10.23736/S1973-9087.21.06833-7


language: English

Ultrasonographic evaluation of abdominal muscle thickness symmetry in adolescent idiopathic scoliosis: a case controlled study

Muhsin DORAN , Kadriye ÖNEŞ, Aynur M. TERZIBAŞIOĞLU, Ҫiğdem ҪINAR, İlhami ATA

1 Department of Physical Medicine and Rehabilitation, Istanbul Physical Medicine and Rehabilitation Training and Research Hospital, Health Sciences University, Istanbul, Turkey


BACKGROUND: To date, there are limited studies evaluating abdominal muscle symmetry in adolescent idiopathic scoliosis (AIS) patients and these studies in the literature do not evaluate the rectus abdominis (RA) muscle in AIS patients.
AIM: To evaluate the symmetry of the thickness of the abdominal muscles while standing and supine position in AIS patients.
DESİGN: A case control study.
METHODS AND POPULATION: Radiographic examination data of patients with AIS (n=40) were collected. An ultrasound assessment was performed of the side-to-side differences of the RA, external oblique (EO), internal oblique (IO), and transversus abdominalis (TrA) muscles in the standing and supine positions in AIS and control groups (n=40). Three repeat measurements of the thickness of each muscle were performed and relative thicknesses were compared.
RESULTS: The mean percentage (%) difference between the right and left sides muscle measurement of the control group was between on standing position 1.54% and 3.00%, in supine 0.8% and 5.87% for different muscles; however, the meanpercentage (%) of this difference in the ASI group ranged from 6.28% to 15.13% (standing ) and 7.21% to 17.24% (supine). Muscle asymmetry in the ASI group was significantly higher than in the control group for all muscles in measurements in the standing and supine position (p <0.001).
CONCLUSIONS: All abdominal relative muscle thicknesses in the AİS patients were more asymmetric than healthy adolacents.

KEY WORDS: Muscle ultrasound; Idiopathic scoliosis; Biomechanics; Transversus abdominis; Rectus abdominis

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