ON RELIABILITY OF М.Н. MEHTA PROGNOSTIC TEST
https://doi.org/10.14531/ss2007.3.26-30
Abstract
Objective. Validation of the Mehta sign reliability on dynamic spine radiographs of patients with progressive idiopathic scoliosis. Material and Methods. Radiographs of 65 patients with progressive idiopathic right-side thoracic scoliosis examined in dynamics were analyzed. The rib-vertebra angle difference (RVAD) was assessed in accordance with Mehta techniques, and scoliosis evolution was followed up. Results. Initial RVAD in 35 patients was less than 20°. Deformity progressed with time in all patients, and in 71 % of them it evolved into a severe form. Almost half of these patients (43 %) have a curve of 30° to 63° even at initial examination. Equality of rib-vertebra angles (RVA-L and RVA-R) does not indicate the absence of scoliosis. Nine patients (26 %) with equal RVA had the Cobb angle of deformity of 6° to 28°. Conclusion. Our findings raise doubt on reliability of the Mehta sign. Further research is necessary including series of patients with non-progressive forms of idiopathic scoliosis.
About the Authors
Vasily Aleksandrovich Suzdalov
Novosibirsk Research Institute of Traumatology and Orthopaedics
Russian Federation
Russian Federation
Mikhail Vitalyevich Mikhailovsky
Novosibirsk Research Institute of Traumatology and Orthopaedics
Russian Federation
Russian Federation
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Review
For citations:
Suzdalov V.A., Mikhailovsky M.V. ON RELIABILITY OF М.Н. MEHTA PROGNOSTIC TEST. Russian Journal of Spine Surgery (Khirurgiya Pozvonochnika). 2007;(3):026-030. (In Russ.) https://doi.org/10.14531/ss2007.3.26-30
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