title: Acute postural adaptations induced by a shoe lift in idiopathic scoliosis patients.
abstract: The objective of this study was to identify acute spinal and three-dimensional postural adaptations induced by a shoe lift in a population of idiopathic scoliosis (IS) patients. Forty-six IS patients (mean age: 12 +/- 2 years) were evaluated radiologically and with a stereovideographic system for pelvic obliquity. Based on the initial postural and radiological evaluation, a pertinent shoe lift height was chosen for each with the result that 12 patients were tested with 5-mm (S5) lifts, 20 patients were tested with 10-mm (S10) lifts, and 14 patients with 15-mm (S15) lifts. The posture for all 46 patients was then re-evaluated and a spinal radiograph obtained for 14 patients. The implementation of a shoe lift independent of the type of curve and amplitude significantly decreased the Cobb angle. As expected there was a change in the vertical height of the left tibial plateau and greater trochanter that induced a change in pelvic tilt. There was also a significant increase in the vertical height of S1 and T1. There was a significant change in the left and right iliac bone version, as well as a decrease in the difference in version between these two bones. The implementation of the shoe lifts also changed the lateral shift of the pelvis. A relative change between the shoulders and pelvis for tilt and anteroposterior shift was also found to be significant. In conclusion, using a shoe lift resulted in acute postural adaptations which specifically affected the spine and the three-dimensional position and orientation of the pelvis and shoulder girdle.
authors.affiliation: Département de Chirurgie, Faculté de Médecine, Université de Montréal, C.P. 6128, Succursale CentreVille, Montréal, Québec H3C 3J7, Canada. karl@justine.umontreal.ca
authors.forename: K F
authors.initials: KF
authors.lastname: Zabjek
authors.forename: M A
authors.initials: MA
authors.lastname: Leroux
authors.forename: C
authors.initials: C
authors.lastname: Coillard
authors.forename: X
authors.initials: X
authors.lastname: Martinez
authors.forename: J
authors.initials: J
authors.lastname: Griffet
authors.forename: G
authors.initials: G
authors.lastname: Simard
authors.forename: C H
authors.initials: CH
authors.lastname: Rivard
mesh_terms: D000222:Adaptation, Physiological; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009983:Orthopedic Equipment; D011187:Posture; D011859:Radiography; D012600:Scoliosis / Q000000981:diagnostic imaging / Q000628:therapy*; D012775:Shoes; D013997:Time Factors; D016896:Treatment Outcome