Pre-operative angle of trunk rotation in prone position estimates postoperative correction results.
Medicine (Baltimore)
; 100(51): e28445, 2021 Dec 23.
Article
en En
| MEDLINE
| ID: mdl-34941198
ABSTRACT
ABSTRACT This study investigated whether postoperative rotational deformity in adolescent idiopathic scoliosis patients could be predicted by prone-position pre-operative angle of trunk rotation (ATR).Surgical rib hump correction is performed with the patient in a prone position. However, the association between pre-operative ATR in the prone position and postoperative ATR results is unknown.Thirty-four consecutive patients who underwent skip pedicle screw fixation for Lenke type 1 or 2 adolescent idiopathic scoliosis were retrospectively reviewed. All subjects were followed for a minimum of 1âyear. ATR measurements were taken for the standing-flexion position with a scoliometer before surgery and at 1âyear afterward. Pre-operative measurements were also taken for the prone position. Correlations between pre- and postoperative ATR were calculated by means of Pearson correlation coefficient. Associations between the correction angle from the standing-flexion position to prone position and postoperative standing-flexion correction angle were determined by linear regression analysis.Pre- and postoperative ATR for the standing-flexion position showed a moderate association (râ=â0.64, Pâ<â.01). A similar correlation was seen for pre-operative prone-position ATR and postoperative standing-flexion ATR (râ=â0.56, Pâ<â.01). In linear regression analysis, there was significant proportional error between the correction angle from the standing-flexion position to prone position and postoperative standing-flexion correction angle (ßâ=â0.40, Pâ<â.01).In conclusion, pre-operative ATR in either standing-flexion or prone position and postoperative standing-flexion ATR displayed moderate associations. Linear regression analysis revealed that ATR correction angle could be estimated by calculating the correction gains of 0.4° per 1° of correction angle in the prone position.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Escoliosis
/
Fusión Vertebral
/
Posición Prona
/
Tornillos Pediculares
/
Cifosis
Tipo de estudio:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Medicine (Baltimore)
Año:
2021
Tipo del documento:
Article
País de afiliación:
Japón